( d , p ) . . .
( 3 H e , d ) . . .
( p , c x ) . . .
( n , p ) - 4 • (cx ,n) .
P d ^ 3 H e
TECHNICAL REPORTS SERIES No. 156
Handbook on Nuclear Activation
Cross-Sections
\ W J INTERNATIONAL A T O M I C ENERGY AGENCY, V IENNA, 1 9 7 4
HANDBOOK ON NUCLEAR ACTIVATION
CROSS-SECTIONS
The following States are Members of the International Atomic Energy Agency:
AFGHANISTAN HAITI PAKISTAN ALBANIA HOLY SEE PANAMA ALGERIA HUNGARY PARAGUAY ARGENTINA ICELAND PERU AUSTRALIA INDIA PHILIPPINES AUSTRIA INDONESIA POLAND BANGLADESH IRAN PORTUGAL BELGIUM IRAQ ROMANIA BOLIVIA IRELAND SAUDI ARABIA BRAZIL ISRAEL SENEGAL BULGARIA ITALY SIERRA LEONE BURMA IVORY COAST SINGAPORE BYELORUSSIAN SOVIET JAMAICA SOUTH AFRICA
SOCIALIST REPUBLIC JAPAN SPAIN CAMEROON JORDAN SRI LANKA CANADA KENYA SUDAN CHILE KHMER REPUBLIC SWEDEN COLOMBIA KOREA, REPUBLIC OF SWITZERLAND COSTA RICA KUWAIT SYRIAN ARAB REPUBLIC CUBA LEBANON THAILAND CYPRUS LIBERIA TUNISIA CZECHOSLOVAK SOCIALIST LIBYAN ARAB REPUBLIC TURKEY
REPUBLIC LIECHTENSTEIN UGANDA DENMARK LUXEMBOURG UKRAINIAN SOVIET SOCIALIST DOMINICAN REPUBLIC MADAGASCAR REPUBLIC ECUADOR MALAYSIA UNION OF SOVIET SOCIALIST EGYPT, ARAB REPUBLIC OF MALI REPUBLICS EL SALVADOR MEXICO UNITED KINGDOM OF GREAT ETHIOPIA MONACO BRITAIN AND NORTHERN FINLAND MONGOLIA IRELAND FRANCE MOROCCO UNITED STATES OF AMERICA GABON NETHERLANDS URUGUAY GERMAN DEMOCRATIC REPUBLIC NEW ZEALAND VENEZUELA GERMANY, FEDERAL REPUBLIC OF NIGER VIET-NAM GHANA NIGERIA YUGOSLAVIA GREECE NORWAY ZAIRE, REPUBLIC OF GUATEMALA ZAMBIA
The Agency's Statute was approved on 23 October 1956 by the Conference on the Statute of the IAEA held at United Nations Headquarters, New York; it entered into force on 29 luly 1957. The Headquarters of the Agency are situated in Vienna. Its principal objective is "to accelerate and enlarge the contribution of atomic energy to peace, health and prosperity throughout the world".
(C) I A E A , 1974
Permission to reproduce or translate the information contained in this publication may be obtained by writing to the International Atomic Energy Agency, Kärntner Ring 11, P.O. Box 590, A-1011 Vienna, Austria.
Printed by the IAEA in Austria June 1974
T E C H N I C A L R E P O R T S SERIES No. 156
HANDBOOK ON NUCLEAR ACTIVATION
CROSS-SECTIONS
N e u t r o n , P h o t o n and C h a r g e d - P a r t i c l e N u c l e a r R e a c t i o n C r o s s - S e c t i o n D a t a
I N T E R N A T I O N A L A T O M I C E N E R G Y A G E N C Y VIENNA, 1974
HANDBOOK ON N U C L E A R A C T I V A T I O N C R O S S - S E C T I O N S I A E A , VIENNA, 1974
ST I / D O C / 1 0 / 1 5 6
FOREWORD
Thi s Handbook conta ins da ta on c r o s s - s e c t i o n s f o r t h e r m a l , e p i t h e r m a l and f a s t neu t ron induced n u c l e a r r e a c t i o n s a s wel l a s f o r those induced by-cha rged p a r t i c l e s and photons . It i s i s sued f o r u s e r s in v a r i o u s n u c l e a r app l ica t ion f i e l d s , with the m a i n e m p h a s i s on ac t iva t ion a n a l y s i s , but a l s o with an eye to r ad io i so tope p roduc t ion and rad iob io log ica l p ro t ec t ion . To s o m e extent the compi l a t ions a r e a l s o u s e f u l in r e a c t o r technology.
Act iva t ion a n a l y s i s , which has made r ap id p r o g r e s s du r ing the l a s t decade , i s widely used in such s p h e r e s as med ic ine and biology, env i ron -m e n t a l con t ro l , i n d u s t r y , a g r i c u l t u r e and f o r e n s i c i nves t iga t ions . Thus the ma in p a r t of th i s co l lec t ion c o n s i s t s of c r o s s - s e c t i o n da ta needed for t h e s e p u r p o s e s .
In the e a r l y days of ac t iva t ion ana lys i s the t h e r m a l neu t ron played the m o s t p r e d o m i n a n t r o l e a s the bombard ing p a r t i c l e r e s p o n s i b l e f o r inducing r ad ioac t iv i t y . Today the t h e r m a l neu t ron i s probably s t i l l the p a r t i c l e m o s t used for such p u r p o s e s . However , e p i t h e r m a l and f a s t n e u t r o n s a r e becoming i n c r e a s i n g l y i m p o r t a n t as p r o j e c t i l e s in n u c l e a r ana ly t i ca l c h e m i s t r y .
T h e r m a l and e p i t h e r m a l n e u t r o n s a r e usual ly produced in r e a c t o r s , w h e r e a s f a s t n e u t r o n s a r e emi t t ed f r o m iso topic s o u r c e s ( e . g . 252 Cf - sour ces ) o r g e n e r a t e d in 14-MeV neu t ron g e n e r a t o r s of the Cockcro f t -Wal ton o r n e u t r o n g e n e r a t o r s of the Van de Graaf f type .
F o r photon ac t iva t ion a n a l y s i s , v a r i o u s e l e c t r o n a c c e l e r a t o r s p roduc ing b r e m s s t r a h l u n g in heavy m a t e r i a l s a r e used . In s o m e i n s t a n c e s a hosp i t a l be ta t ron can be used for such s t u d i e s .
Neutron and photon ac t iva t ion ana lys i s i s ma in ly used for bulk ana ly s i s i n a s m u c h a s the in tens i ty o r ene rgy of the bombard ing p a r t i c l e s o r r a d i a -t ions i s usual ly not changed in any e s s e n t i a l way when p a s s i n g the s a m p l e . On the o the r hand, cha rged p a r t i c l e s at low or i n t e r m e d i a t e e n e r g i e s a r e s topped in a m e t a l s u r f a c e . F o r th is r e a s o n cha rged p a r t i c l e s a r e ma in ly used f o r s u r f a c e a n a l y s i s , i . e . the d e t e r m i n a t i o n of an e l emen t in a s u r -f ace o r of i t s concen t r a t i on p r o f i l e ju s t below a s u r f a c e . In cha rged p a r -t i c le ac t iva t ion a n a l y s i s , a c c e l e r a t o r s of v a r i o u s types a r e u s e d , the Van de Graaf f type being p e r h a p s the m o s t common .
As a r u l e of t humb, r e a c t i o n s induced with photons , cha rged p a r t i c l e s or 14-MeV n e u t r o n s a r e ma in ly used for the a n a l y s i s of l ight e l e m e n t s , w h e r e a s t h e r m a l and e p i t h e r m a l neu t rons a r e applied in the ana lys i s of i n t e r m e d i a t e o r h e a v i e r e l e m e n t s .
With a s p e c i f i c ana ly t i ca l p r o b l e m in mind , the ana ly t i ca l c h e m i s t h a s to s e l e c t the m o s t su i t ab le n u c l e a r r e a c t i o n fo r so lv ing h i s p r o b l e m , and a knowledge of c r o s s - s e c t i o n va lues o r exci ta t ion func t ions i s e s s e n t i a l . A handbook conta in ing the v a r i o u s types of c r o s s - s e c t i o n va lues i s thought to be va luable fo r a f i r s t s u r v e y , p a r t i c u l a r l y fo r s c i e n t i s t s and t e c h n i c i a n s in developing c o u n t r i e s who may not a lways have easy a c c e s s to the d e s i r e d i n f o r m a t i o n .
Many s c i e n t i s t s have con t r ibu ted to the p r e p a r a t i o n of th i s Handbook. T h e e d i t o r s , M r . D. B r u n e of Akt iebolaget A t o m e n e r g i , Studsvik, Sweden, and M r . J . J . Schmidt of the IAEA N u c l e a r Data Sect ion, Vienna, wish to e x p r e s s t h e i r s i n c e r e g ra t i t ude to these s c i e n t i s t s f o r t h e i r va luable c o n t r i -but ions and c o - o p e r a t i o n .
CONTENTS
2200 m / s NEUTRON ACTIVATION CROSS-SECTIONS 1 R. S h e r
In t roduct ion 1 R e f e r e n c e s to In t roduct ion 2 Table I. T h e r m a l c r o s s - s e c t i o n va lues 3
INFINITE-DILUTION RESONANCE INTEGRALS 15 H. A l b i n s s o n
In t roduct ion 15 R e f e r e n c e s to In t roduct ion 17 Tab le of in f in i t e -d i lu t ion r e s o n a n c e i n t e g r a l s 18 R e f e r e n c e s to Tab le 81
TABLES AND GRAPHS OF CROSS-SECTIONS FOR (n ,p ) , (n, a) AND (n ,2n) REACTIONS IN THE NEUTRON ENERGY REGION 1 - 37 Me V 8 7
M. B o r m a n n , H. N e u e r t , W. S c o b e l
P a r t i : T a b l e s of c r o s s - s e c t i o n s ( r ange : 13. 9 - 15. 1 MeV) 87 In t roduct ion 87 R e f e r e n c e s to In t roduct ion 90 Table I. 14-MeV (n ,p) c r o s s - s e c t i o n s 91 Table II. 14-MeV (n, a) c r o s s - s e c t i o n s 105 Tab le III. 14-MeV (n, 2n) c r o s s - s e c t i o n s 113 R e f e r e n c e s to T a b l e s I - III 130
P a r t 2: Graphs of exc i ta t ion func t ions ( range 1 - 3 7 MeV) 139 In t roduct ion 139 R e f e r e n c e s to In t roduct ion 140 G r a p h s o f ( n , p ) c r o s s - s e c t i o n s 141 G r a p h s of (n ,») c r o s s - s e c t i o n s 185 G r a p h s of (n ,2n) c r o s s - s e c t i o n s 212 R e f e r e n c e s to g raphs 270
CROSS-SECTIONS FOR FISSION NEUTRON SPECTRUM INDUCED REACTIONS 273
A. C a l a m a n d
In t roduct ion 273 Review of i n t e g r a l m e a s u r e m e n t s for (n ,p ) , ( n , a ) , (n, 2n)
and (n, n ' ) r e a c t i o n s 273 E s t i m a t e d a v e r a g e f i s s i o n neu t ron c r o s s - s e c t i o n s fo r
( n , p ) , (n, a) and (n, 2n) r e a c t i o n s 275
Table I. Adopted s t a n d a r d s 280 Table II. I n t e g r a l (n ,p) c r o s s - s e c t i o n s ave raged in the
u r a n i u m - 2 3 5 t h e r m a l f i s s ion neu t ron s p e c t r u m 282 Table III. I n t eg ra l (n, a) c r o s s - s e c t i o n s ave raged in the
u r a n i u m - 2 3 5 t h e r m a l f i s s ion neu t ron s p e c t r u m 294 Table IV. I n t e g r a l (n, 2n) c r o s s - s e c t i o n s ave raged in the
u r a n i u m - 2 3 5 t h e r m a l f i s s ion neu t ron s p e c t r u m 299 Table V. I n t e g r a l ( n , n ' ) c r o s s - s e c t i o n s ave raged in the
u r a n i u m - 2 3 5 t h e r m a l f i s s ion neu t ron s p e c t r u m 304 Notes to T a b l e s II-V 305 R e f e r e n c e s to T a b l e s II-V 307 Table VI. E s t i m a t e d a v e r a g e c r o s s - s e c t i o n s fo r (n ,p ) , (n ,«)
and (n ,2n) r e a c t i o n s in a f i s s ion neu t ron s p e c t r u m . . 310
EXCITATION FUNCTIONS F O R CHARGED-PARTICLE- INDUCED NUCLEAR REACTIONS IN LIGHT E L E M E N T S AT LOW P R O J E C T I L E ENERGIES 325
J . L o r e n z e n , D. B r u n e
In t roduct ion 325 Graphs of exc i ta t ion func t ions 327
Convent ions and s y m b o l s 327 P ro ton 328 Deute ron 348 Alpha 379 H e l i u m - 3 391 Yield c u r v e s 431
R e f e r e n c e s to g r a p h s 436
Appendix 1: Exci ta t ion func t ions of c h a r g e d - p a r t i c l e - i n d u c e d r e a c t i o n s at h igher e n e r g i e s 437
S y s t e m a t i c s 437 Table A.1-I. C h a r a c t e r i s t i c data f o r the exc i ta t ion
func t ions 438 F i g u r e s A l - 1 to A.l-13 447
Appendix 2 460 T a b l e A2- I . {p,y) r e s o n a n c e s as a funct ion of proton
e n e r g i e s rang ing f r o m 163 keV to 3. 0 MeV . . 460
Appendix 3: Bibl iography 473
PHOTONUCLEAR CROSS-SECTIONS 475 B. B ü l o w , B. F o r k m a n
In t roduct ion 475 R e f e r e n c e s to In t roduct ion 485 Graphs of c r o s s - s e c t i o n s 485
Symbols 485 Contents l i s t of g r aphs 486
2200 m / s NEUTRON ACTIVATION CROSS-SECTIONS
R. SHER Stanford University, Stanford, Cal i f . , United States of America
ABSTRACT. 2200 m / s neutron activation cross-sections for a large number of isotopes of interest to neutron activation analysis are presented. In addition to the cross-sections, values are given for the half-lives of the activities formed and the cross-sections for activation of isomeric and ground-states, if these are both of interest.
INTRODUCTION
The fo l lowing t a b l e of t h e r m a l c r o s s - s e c t i o n v a l u e s i s b a s e d p r i m a r i l y on r e c e n t c o m p i l a t i o n s by N. Holden [1] and D. T . Go ldman et a l . [2], Only i s o t o p e s of p o t e n t i a l i n t e r e s t in t h e r m a l n e u t r o n a c t i v a t i o n a n a l y s i s a r e i n c l u d e d , but t h e s e f a l l in to two c l a s s e s : t h o s e of i n t r i n s i c i n t e r e s t b e c a u s e they a r e l ike ly to be the m a t e r i a l s be ing a n a l y s e d , and t h o s e whose a c t i v a -t ion i s l ike ly to be an i m p o r t a n t s o u r c e of b a c k g r o u n d . Of c o u r s e , m a n y e l e m e n t s can f a l l in to e i t h e r c l a s s .
A l l e n t r i e s a r e c r o s s - s e c t i o n s at a n e u t r o n e n e r g y of 0. 02 53 eV (neu t ron ve loc i ty of 2200 m / s ) . In m o s t c a s e s , the v a l u e s a r e b a s e d on m e a s u r e m e n t s of the a c t i v a t i o n c r o s s - s e c t i o n , but o c c a s i o n a l l y v a l u e s i n f e r r e d f r o m a b s o r p t i o n c r o s s - s e c t i o n s a r e u s e d .
In m a n y c a s e s , H o l d e n ' s v a l u e s d i f f e r s o m e w h a t f r o m t h o s e of G o l d m a n et a l . , p a r t l y b e c a u s e of the i n c l u s i o n of l a t e r d a t a , and p a r t l y b e c a u s e of d i f f e r i n g j u d g e m e n t s a s to b e s t v a l u e s of the m e a n and e r r o r s p r e a d of s e v e r a l m e a s u r e m e n t s . A s a g e n e r a l r u l e , when l a t e r d a t a m a d e the v a l u e s of G o l d m a n et a l . o b s o l e t e , H o l d e n ' s v a l u e s w e r e g iven g r e a t e r we igh t ; when d i f f e r e n c e s be tween the two s e t s w e r e due to d i f f e r e n t e v a l u a t i o n s of the s a m e d a t a , t h o s e of Go ldman et a l . w e r e u s e d f o r the m o s t p a r t . T h i s s i m p l y r e f l e c t s the p r e s e n t a u t h o r ' s g r e a t e r f a m i l i a r i t y with the l a t t e r . In s o m e c a s e s the d a t a w e r e r e - e v a l u a t e d .
The e r r o r l i m i t s should not be t aken too l i t e r a l l y in m o s t c a s e s . Of ten a s e t of s e v e r a l m e a s u r e d v a l u e s f a l l i n g f a r ou t s ide t h e i r ind iv idua l ly quoted l i m i t s of e r r o r had to be r e c o n c i l e d , and in the s p i r i t of G o l d m a n et a l . m a n y of the quoted e r r o r l i m i t s s i m p l y r e p r e s e n t a r o u g h i nd i ca t i on of the s p r e a d of the i nd iv idua l m e a s u r e m e n t s . B e c a u s e of t h i s , they a r e o f t en c o n s i d e r a b l y l a r g e r than the u n c e r t a i n t i e s c l a i m e d by ind iv idua l e x p e r i m e n t e r s .
To inc lude a c o m p l e t e b ib l i og raphy of the o r i g i n a l c r o s s - s e c t i o n m e a s u r e -m e n t s would h a v e e n c u m b e r e d an a l r e a d y l eng thy t ab l e . M e a s u r e m e n t s up to about 1966 a r e r e f e r e n c e d in B N L - 3 2 5 [ 3 ] ; r e f e r e n c e s to m o r e r e c e n t r e s u l t s can be found in b ib l i og raphy and da ta c o m p i l a t i o n s s u c h a s CINDA [4] and the NEA N e u t r o n Data C o m p i l a t i o n C e n t r e N e w s l e t t e r [5], o r can be ob ta ined f r o m the v a r i o u s n e u t r o n da ta c e n t r e s 1 .
1 National Neutron Cross-Section Center, Brookhaven National Laboratory, Upton, L. I . , N.Y. 11973, USA. NEA Neutron Data Compilation Centre, F-91190 Gif-sur-Yvette, B. P. No 9, France. Centr po Jadernym Dannym, Fiziko-Energeticheskij Institut, Obninsk, Kaluga oblast, USSR. Nuclear Data Section, IAEA, 1010 Vienna, Austria.
1
2 SHER
Table I l i s t s , in addi t ion to the c r o s s - s e c t i o n s , the h a l f - l i v e s of the ac t i v i t i e s f o r m e d and the c r o s s - s e c t i o n s fo r ac t iva t ion of i s o m e r i c and g r o u n d - s t a t e s , if these a r e both of i n t e r e s t .
Unless o t h e r w i s e noted, c r o s s - s e c t i o n va lues r e f e r to the e f fec t ive ac t iva t ion of the s t a t e , not i t s d i r e c t f o r m a t i o n . Thus , fo r example , in 1 6 4Dy, w h e r e the 1. 2 5 - m i n i s o m e r decays to the 2. 3 - h o u r g r o u n d - s t a t e , the c r o s s - s e c t i o n value for the g r o u n d - s t a t e l i s t ed i s the sum of the f o r m a t i o n c r o s s - s e c t i o n s to the two l e v e l s . In a few c a s e s , the i s o m e r i c s t a t e h a s o the r m o d e s of decay be s ide s the t r a n s i t i o n to the g round - s t a t e ; fo r those the cont r ibu t ion to the g r o u n d - s t a t e ac t iva t ion c r o s s - s e c t i o n i s c o r r e c t e d by the b ranch ing r a t i o . The p r i nc ipa l c a s e s for which the g round- s t a t e ac t iva t ion c r o s s - s e c t i o n i s not given by the sum of i t s d i r e c t - f o r m a t i o n c r o s s - s e c t i o n plus the i s o m e r i c - s t a t e c r o s s - s e c t i o n a r e those in which the h a l f - l i f e of the i s o m e r i c s t a t e i s c o m p a r a b l e to o r longe r than that of the g r o u n d - s t a t e , and those in which the i s o m e r i c s t a t e does not decay to the g r o u n d - s t a t e . T h e s e i n s t a n c e s c a r r y the notat ion " d i r e c t f o r m a t i o n " , if t h e r e i s poss ib le ambigui ty .
Not al l of the e n t r i e s in the table a r e of equal i m p o r t a n c e , of c o u r s e . However , the i n c r e a s i n g use in neu t ron -ac t i va t i on ana lys i s of h igh - r e so lu t ion d e t e c t o r s and the i n c r e a s i n g soph i s t i ca t ion of s a m p l e p r e p a r a t i o n and s e p a -ra t ion techniques m a k e it d e s i r a b l e to include many i so topes whose ac t iv i t i e s admi t ted ly will be s e ldom seen .
No a t t empt has been made to l i s t the r ad ioac t ive p r o p e r t i e s of the ac t iva -tion p r o d u c t s o ther than h a l f - l i v e s , s ince these a r e eas i ly avai lable in s o u r c e s such as L e d e r e r et a l . [6].
A C K N O W L E D G E M E N T S
I am grea t ly indebted to N. Holden and to D. T. Goldman, J . R . Stehn, and P . Aline for p e r m i s s i o n to use t h e i r compi l a t ions . They should not be b lamed for any e r r o r s in the tab le , fo r which I take fu l l r e spons ib i l i t y .
R E F E R E N C E S T O I N T R O D U C T I O N
[ 1 ] HOLDEN, N . , "Recommended values of thermal-neutron cross sections and resonance integrals for the 1972 chart of the nuclides", March 1973 version (unpublished).
[ 2 ] GOLDMAN, D . T . , ALINE, P . , SHER, R., STEHN, J . , "2200 m / s e c absorption cross sections" (unpublished). [ 3 ] BROOKHAVEN NATIONAL LABORATORY, Neutron Cross Sections, 2nd Edn, Brookhaven National Lab.
Rep. BNL-325 (1958), with Supplements 1960 and 1966. [ 4 ] CINDA 71, An Index to the Literature on Microscopic Neutron Data, published by IAEA on behalf of the
four CINDA centres, IAEA, Vienna (1971). [ 5] NEA Neutron Data Compila t ion Centre Newsletter, NEA, Saclay. [ 6 ] LEDERER, C . M . , HOLLANDER, J. M . , PERLMAN, I . , Table of Isotopes, 6th Edn, Wiley, New York (1968).
THERMAL NEUTRON CROSS-SECTIONS
T A B L E I. T H E R M A L CROSS-SECTION VALUES
Element Abundance Isotope ( p e r c e n t ) Product
Ha l f -L i fe a n,y ( b a r n s )
Carbon
Nitrogen
Oxygen
Fluorine
Sodium
Magnesium
Aluminum
Si 1 icon
Phosphorus
Sulfur
Chlorine
Argon
1 3 ,
H ,
15.
19
23
26,
27
30
31
34r
36c
37,
36 Ar 38 Ar 40
1.11
N 99.63
0.37
0.204
F 100
Na 100
'Mg 11.17
Al 100
Si 3.09
P 100
4.22
0.014
Cl 24.47
Ar
0.337
0.063
99.6
5730 years -3
5730 years (14C)
7.2 sec
26.8 sec
11.2 sec
15 hours
9.5 min
2.3 min
2.62 hours
14.3 days
(0.9 ± 0.2) x 10
(an > p = 1.82 ± 0.03)
(24 ± 8) x 10"6
(0.16 ± 0.01) x 10 -3
88 days
5.06 min
0.7 sec 3 8Clm
37 min 38C19
34 days
269 years
1.83 hours
(9.8 ± 0.7) x 10
0.528 ± 0.005
(38 ± 3) x 10"3
0.232 ± 0.003
0.105 ± 0.005
0.190 ± 0.010
0.034 ± 0.005
0.15 ± 0.03
(5 ± 3) x 10"3
0.43 ± 0.01
6 ± 2
0 . 8 ± 0 . 2
0.65 ± 0.03
-3
Potassium 41. 12.4 hours 1.48 ± 0.03
4 SHER
T A B L E I (cont . )
Element Isotope Abundance (Percent)
Product Ha l f -L i fe V Y ( B A R N S )
Calcium 44Ca 2.06 165 days 1.1 ± 0.3
46Ca 0.0033 4.53 days 0.7 ± 0.2
48Ca 0.18 8.8 minutes 1.1 ± 0.1
Scandium 45Sc 100 20 sec 46Scm 10 ± 4
83.8 days46Sc9 25 ± 2
Titanium 50Ti 5.34 5.8 minutes 0.179 ± .003
Vanadium 51v 99.76 3.76 minutes 4.90 ± 0.05
Chromium 50Cr 4.31 27.8 days 16.0 ± 0.5 54Cr 2.38 3.5 minutes 0.38 ± 0.04
Manganese 55Mn 100 2.58 hours 13.3 ± 0.1
Iron 54Fe 5.82 2.6 years 2.5 ± 0.4
58Fe 0.33 45 days 1.14 ± 0.05
Cobalt 59Co 100 10.5 min 60Com 19.9 ± 0.91
5.26yrs 60Co9 37.5 ± 0.2
(60Com 10.5 min 99 minutes 58 ± 8)
(60Cog 5.26 yrs 99 minutes 2.0 ± 0.2)
Nickel 64Ni 1.16 2.56 hours 1.50 ± 0.05
Copper 63Cu 69.09 12.8 hours 4.4 ± 0.2
65Cu 30.91 5.1 minutes 2.20 ± 0.05
THERMAL NEUTRON CROSS-SECTIONS 5
T A B L E I (cont . )
Element Isotope Abundance (Percent)
Product Ha l f -L i fe
a„ (barns) n,y
Zinc 64Zn 48.89 245 days 0.82 ± 0.01
68Zn 18.57 13.8 hrs 69Znm 0.07 ± 0.01
57 min 69Zn9 1.0 ± 0.2 ( d i r . formation)
70Zn 0.62 3.97 hrs 71Znm (9 ± 1) x 10"3
2.4 min 71Zn9 (90 ± 10) x 10"3 ( d i r . form.)
Gallium 69Ga 60.4 21.1 minutes 1.7 ± 0.2
71Ga 39.6 , , 72- m 36 psec Ga 0.15 ± 0.05
14 hrs 72Ga9 4.7 ± 0.3
Germanium 70Ge 20.52 20 msec 71Gem 0.28 ± 0.07
11.4 days71Geg 3.5 ± 0.13
74Ge 36.54 48 sec 75Gem 0.16 ± 0.03
82 min 75Ge9 0.52 ± 0.06
76Ge 7.76 c„ 77„ m 54 sec Ge 0.09 ± 0.02
11 hrs 77Ge9 0.07 ± 0.02 ( d i r . formation)
Arsenic 75As 100 26.5 hours 4.4 ± 0.2
Selenium 74Se 0.87 120.4 days 55 ± 5
76Se 9.02 17.5 sec 77Sem 21 ± 2
78Se 23.52 3.9 min 79Sem 0.33 ± 0.04
80Se 49.82 57 min 81Sem 0.08 ± 0.01
18.6 min 81Se9 0.54 ± 0.04 ( d i r . formation)
82Se 9.19 -m 83c m 70 sec Se (6 ± 1) x 10"3
25 min 83Se9 (39 ± 3) x 10"3 ( d i r . form.)
6 SHER
T A B L E I (cont. )
Element Isotope Abundance (Percent)
Product Ha l f -L i fe
c (barns)
Bromine Br 50.54 4.38 hrs 80Brm
17.6 min S 0Br9
2.6 ± 0.2
8.4 ± 0.3 (d i rec t formation)
81n Br 49.45 6.1 min 82Brm
35.34 hrs 8 2 Br 9
2.7 ± 0.3
3.0 ± 0.3
Krypton 78,, Kr 0.35 55 sec 78Krm
34.9 hrs 7 8Kr9
0.2 ± 0.05
4.7 ± 0.7 8CL Kr 2.27 13 sec 81Krm 4.6 ± 0.7
82. Kr 11.56 1.86 hrs 83Krm 20 ± 4 84. Kr 56.90 4.4 hrs 8 5Krm
10.76 yrs 8 5 Kr 9
0.10 ± 0.03
(42 ± 4) x 10~3 ( d i r . form.)
8 6Kr . 17.37 76 minutes (60 ± 20) x 10"3
Rubidium 85Rb 72.15 1.05 min 86Rbm
18.65 days86Rb9
(50 ± 5) x 10"3
0.45 ± 0.02 87Rb
(5 x 1010yrs) 27.85 17.8 minutes 0.12 ± 0.03
Strontium 84c Sr 0.56 . 85,. m 70 min Sr
64 days 8 5 Sr 9
0.57 ± 0.05
0.3 ± 0.1 (d i rec t formation)
8 6Sr 9.86 2.83 hrs 87Srm 0.8 ± 0.1 8 8Sr 82.56 52 days (5 ± 1) x 10"3
Yttr ium 89y 100 3.1 hrs 90Ym
64 hours 90Y9
(1.0 ± 0.2) x 10~3
1.2 ± 0.1
Zirconium 9 4Zr 17.40 65 days (75 ± 8) x 10"3
9 5Zr 2.80 17 hours 0.05 ± 0.01
THERMAL NEUTRON CROSS-SECTIONS 7
T A B L E I (cont . )
Element Isotope Abundance (Percent)
Product Ha l f -L i fe °n,y ( b a r n s )
Niobium 93Nb 100 6.3 min 94Nbm 0.15 ± 0.10
Molybdenum 98Mo 23.78 67 hours 0.14 ± 0.02 100M Mo 9.63 14.6 minutes 0.20 ± 0.05
Ruthenium 9 6 R u 5.51 2.9 days 0.21 ± 0.02
102Ru 31.61 39.6 days 1.3 ± 0.1
104Ru 18.58 4.44 hours 0.47 ± 0.20
Rhodium 103Rh 100 4.41 min104Rhm 11 ± 1
43 sec 104Rh9 139 ± 5 (d i rec t formation)
Palladium 106Pd 27.33 22 sec107Pdm (13 ± 2) x 10"3
108pd 26.71 4.7 min109Pdm 0.17 ± 0.02
13.47hrs109Pd9 12 ± 2 110Pd 11.81 5.5 hrs 11 ]Pdm (20 ± 15) x 10"3
22 min ] 1 1Pd9 0.36 ± 0.05 ( d i r . form.)
Si lver 107. Ag 51 .82 2.42 min 108Ag9 37 ± 2 109Ag 48.18 253 days 110Agm 4.7 ± 0.4
24.2 sec 110Ag9 89 ± 4
Cadmium 106Cd 1.22 6.5 hours 1.0 ± 0.5 114Cd 28.86 43 days 115Cdm (36 ± 7) x 10"3
53.5 hrs 115Cd9 0.300 ± 0.015 116Cd 7.58 3.4 hrs 117Cdm (27 ± 5) x 10"3
2.4 hrs 117Cd9 (50 ± 8) x 10"3
8 SHER
T A B L E I (cont. )
Element Isotope Abundance (Percent)
Product Ha l f -L i fe
a (barns) n.Y
Indium 1 1 3 I n 4.28 50 day 1 1 4 In m 7.8 ± 2.0
72 sec1 1 4 In9 3.0 ± 1.0 1 1 5 l n 95.72 2.2 sec 1 1 6 In m 91 ± 10
54 min 1 1 6 In m 161 ± 5
14 sec 1 1 6 I n 9 42 ± 4
Tin 112. Sn 0.96 20 min 113Snm 0.35 ± 0.08
115 day 113Sn9 0.71 ± 0.10 116c Sn 14.30 14 day 117Snm (6 ± 2) x 10"3
118c Sn 24.03 250 day 119Snm (8 ± 2) x 10"3
120c Sn 32.85 27 hours 0.14 ± 0.03 122c Sn 4.72 40 min 123Snm 0.15 ± 0.02 124Sn 5.94 9.7 min 125Snm 0.14 ± 0.02
9.4 day125Sn9 4 ± 2
Antimony 121Sb 57.25 4.2 min 122Sbm (55 ± 10) x 10"3
2.8 days 122Sb9 6.2 ± 0.2 123Sb 42.75 21 min 124Sbm2 (15 ± 4) x 10"3
93 sec 124Sbmi (30 ± 8) x 10"3
60 day 124Sb9 4.0 ± 0.2
Tel lurium 120, Te 0.089 154 day 121Tem 0.34 ± 0.06
17 day 121Te9 2.0 ± 0.3 1 22 t Te 2.46 117 day 123Tem 1.1 ± 0.5 124, Te 4.61 58 day 125Tem (40 ± 25) x 10"3
126, Te 18.71 109 day 127Tem 0.125 ± 0.023
9.4 hour 127Te9 0.9 ± 0.15 128, Te 31 .79 34 day 129Tem (15 ± 2) x 10"3
69 min 129Te9 0.155 ± 0.040
THERMAL NEUTRON CROSS-SECTIONS 9
T A B L E I (cont . )
Element Isotope Abundance (Percent)
Product Ha l f -L i fe
a (barns) n,Y
Tellurium (cont.)
130Te 34.48 30 hour 131Tem
25 min 131Te9
0.02 ± 0.01
0.2 ± 0.1
Iodine 127j 100 25 minutes 6.2 ± 0.2
Xenon 124Xe 0.096 17 hours 100 ± 20
128Xe 1.92 8 day 129Xem 0.43 ± 0.10
130Xe 4.08 11.8 day 131Xem 0.34 ± 0.08
132Xe 26.89 „ „ , . 133v m 2.26 day Xe
5.27 day 133Xe9
0.53 ± 0.10
0.05 ± 0.02 (d i r . form.)
134Xe 10.44 9.2 hours 0.23 ± 0.02
136Xe 8.87 3.9 minutes 0.16 ± 0.05
Cesium 133Cs 100 „ r, , 134r m 2.9 hour Cs
2.05 year 134Cs9
2.6 ± 0.2
30.0 ± 1.5
Barium 130Ba 0.101 15 min 131Bam
12 day 131Ba9
2.5 ± 0.3
11 ± 3
132ßa 0.097 7.2 year 133Ba9 8.5 ± 1.0
134Ba 2.42 29 hour 135Bam 0.16 ± 0.02
135Ba 7.81 2.55 min 137Bam (10 ± 1) x 10"3
138Ba 71.66 82.9 minutes 0.35 ± 0.15
Lanthanum 139La 99.911 40.2 hours 9.0 ± 0.3
Cerium 136Ce 0.193 34.4 hour 137Cem
9.0 hour 137Ce9
0.95 ± 0.25
6.3 ± 1.5 ( d i r . formatioi
138Ce 0.250 e - 139,- m 55 sec Ce
140 day 139Ce9
(15 ± 5) x 10"3
1.1 ± 0.3
10 SHER
T A B L E I (con t . )
El ement Isotope Abundance (Percent)
Product Ha l f - L i f e V Y ( B A R N S )
Cerium (cont . )
140Ce
U 2 C e
88.
11.
48
07
33 days
33.7 hours
0.58 ± 0.06
1.1 ± 0.3
Praseodymium 141pr 100 14.6 min 1 4 2Prm 3.9 ± 0.5
19.2 hour 1 4 2 Pr 9 11.5 ± 1.0
Neodymium 146Nd 17. ,22 11.1 days 1.4 ± 0.2
148Nd 5. .73 1.8 hours 2.5 ± 0.2
150Nd 5. .62 12 minutes 1 .3 ± 0.3
Samarium 144Sm 3. .09 340 days 0.7 ± 0.3
150Sm 7 .44 87 years 102 ± 5
152Sm 26 .72 47 hours 210 ± 10
154Sm 22 .71 23 minutes 5.5 ± 1.1
Europium
Gadoli ni urn
Terbium
Dysprosium
Holmium
151EU 47.82 96 min 152Eum2 3.8 ± 1.9
9 hour 1 5 2Eum i 2800 ± 300
153EU 12 year 152Eu9 5300 ± 300
153EU 52.18 16 years 400 ± : 100 152Gd 0.20 242 days 1100 ± 100
158Gd 24.87 18 hours 3.5 ± : 1.0
160Gd 21.90 3.7 minutes 0.77 ± 0.04
159Tb 100 72.1 days 25 ± 5
1 5 8 D y 0.090 144 days 96 ± 20
164Dy 28.18 1.26 min 165Dym • 2100 ± 400
139 min 1 6 5Dy9 2600 ± 200
165HO 100 26.9 hr 166Ho9 61.5 ± 2.0
THERMAL NEUTRON CROSS-SECTIONS 1 1
T A B L E I (cont . )
Element Isotope Abundance (Percent)
Product Ha l f -L i fe °n,Y ( b a r n s )
Erbium 162Er 0.136 75 minutes 160 ± 30
164Er 1.56 10.3 hours 13 ± 5
168Er 27.07 9.4 days 1.9 ± 0.2
1 7 0Er 14.88 7.52 hours 6 ± 1
Thuli um 169Tm 100 130 days 106 + 5
Ytterbium 168yb 0.135 32 days 3200 ± 400
174Yb 31.84 101 hr 175Yb9 65 ± 5
176yb 12.73 1.9 hr 177Yb9 5.5 ± 1.0
Lutetium 175LU 97.41 3.69 hr 176Lum 18 ± 3
176LU 2.59 155 day 177Lum 7 ± 2
6.7 day 1 7 7Lug 2050 ± 50
Hafnium 1 7 4Hf 0.18 70 days 390 ± 55
1 7 7Hf 18.50 4.3 sec 1 7 8Hfm 1.1 ± 0.1 178Hf 27.14 18.6 sec 1 7 9Hfm 52 ± 6 1 7 9Hf 13.75 5.5 hour 1 8 0Hfm 0.34 ± 0.03
180Hf 35.24 42.3 days 12.6 ± 0.7
Tantalum 181Ta 100 16.5 min 182Tam (10 ± 2) x 10"3
115 day 182Ta9 22 ± 1
Tungsten 184W 30.64 1.6 min 185Wm (2.4 ± 0.4) x 10"3
75 day 185w9 1.8 ± 0.2
186W 38.41 23.9 hours 37 + 2
12 SHER
T A B L E I (cont . )
Element Isotope Abundance (Percent)
Product Ha l f -L i fe
a (barns) n,Y
Rhenium 185Re 37.07 90 hours 110 ± 5
187Re 62.93 n n -, . 188n m 18.7 min Re 2.0 ± 1.0
16.7 hour 188Re9 75 ± 4
Osmium 1840s 0.02 94 days 3000 ± 600
1890s 16.1 9.9 min 1900sm (0.26 ± 0.03) x 10"3
1900s 26.4 13 hour 1910sm 12 + 6
15 day 1 9 10s9 16 ± 6
1920s 41.0 31 hours 1.6 ± 0.4
I r id ium 1 9 1 l r 37.3 75 year 1 9 2 I r m * 0.4 ± 0.2
1.4 min 1 9 2 l r m i 610 ± 60
74 day 1 9 2 I r 9 925 ± 50 193 I r 62.7 17.4 hours 110 ± 15
Platinum 1 9 2 Pt 0.78 4.3 day 1 9 3Ptm 2 ± 1
1 9 4 Pt 32.9 4.1 day 1 9 5Ptm (87 ± 13) x 10"3
1 9 6 Pt 25.3 80 min 1 9 7Ptm (60 ± 20) x 10"3
18 hour 1 9 7 Pt 9 0.8 ± 0.1 198pt 7.21 30 minutes 3.7 ± 0.2
Gold 197Au 100 2.7 days 98.8 ± 0.3
Mercury 196H9 0.146 24 hour 197Hgm 120 ± 15
65 hour 197Hg9 3000 ± 100 ( d i r . form.
198Hg 10.02 43 min 199Hgm 0.02 ± 0.01
202Hg 29.80 46.9 days 4.9 ± 0.2
204Hg 6.85 5.5 minutes 0.43 ± 0.10
THERMAL NEUTRON CROSS-SECTIONS 13
T A B L E I (cont . )
Element Isotope Abundance (Percent)
Product Ha l f -L i fe V (barns)
1 Y
Thallium 203T1 29.50 3.8 years 10 ± 1
205 t1 70.50 4.19 minutes 0.5 ± 0.2
Lead 208Pb 52.3 3.30 hours (20 ± 10) x 10"3
Bismuth 209ßi 100 5.0 days (19 ± 2) x 10"3
Thorium 232Th 100 22.2 minutes 7.4 ± 0.1
Uranium 235u 0.72 (a f = 580 ± 2) 238u 99.27 23.5 minutes 2.720 ± 0.025
Plutonium 239Pu <af - 742 ± 3)
I N F I N I T E - D I L U T I O N RESONANCE INTEGRALS
H. ALBINSSON The Swedish Research Council 's Laboratory, Studsvik, Nyköping, Sweden
ABSTRACT. A compilation is given of infinite-dilution resonance integrals (1/v contribution included). Most results have been obtained from experiments, although in some cases evaluated data have also been included. The resonance-integral values have been normalized to conform to various standards, mainly those from 197 Au and 59 Co.
INTRODUCTION
T h e p r e s e n t c o m p i l a t i o n of v a l u e s of i n f i n i t e - d i l u t i o n r e s o n a n c e i n t e g r a l s i s b a s e d on two s o u r c e s : (1) a p r i n t - o u t of r e s o n a n c e - i n t e g r a l r e f e r e n -c e s f r o m the NEA N e u t r o n Da ta C o m p i l a t i o n C e n t r e , and (2) a l i s t i ng of IAEA r e f e r e n c e s . F o r m o s t n u c l e i new r e s u l t s have been added to t h o s e p r e s e n t e d e a r l i e r by D r a k e [1], R e f e r e n c e s to s o m e o l d e r p a p e r s have not b e e n i n c l u d e d , h o w e v e r , if n e w e r and m o r e p r e c i s e d a t a w e r e a v a i l a b l e . G e n e r a l l y , p r o g r e s s r e p o r t s o r l a b o r a t o r y r e p o r t s h a v e not been c o n s i d e r e d , u n l e s s t h e y w e r e p r e s e n t e d by D r a k e o r a s r e f e r e n c e s in j o u r n a l s . Some e a r l i e r r e s o n a n c e - i n t e g r a l v a l u e s g iven in j o u r n a l s h a v e a l s o b e e n o m i t t e d if t h e y w e r e s u p e r s e d e d by m o r e r e c e n t d a t a in l a b o r a t o r y r e p o r t s . If t h e s e w e r e not of o f f i c i a l c h a r a c t e r , h o w e v e r , such i n f o r m a t i o n h a s not been u s e d in the p r e s e n t c o m p i l a t i o n .
R e a d e r s i n t e r e s t e d in a f u l l c o v e r a g e a r e , of c o u r s e , r e f e r r e d to CINDA 73 and i t s s u p p l e m e n t [2].
P r e s e n t a t i o n of d a t a in the t a b l e
T h e c o m p i l a t i o n i s p r e s e n t e d in the f o r m of a t a b l e , which is a r r a n g e d a s f o l l o w s :
Co lumn 1 ( Iso tope) : T h e r e l e v a n t t a r g e t n u c l e u s i s p r e s e n t e d in a s t a n d a r d m a n n e r , such a s 5 2 C r , which s t a n d s f o r t he e l e m e n t c h r o m i u m of m a s s 52. If the m a s s n u m b e r is not g iven , the no ta t ion s t a n d s f o r n a t u r a l c h r o m i u m , m and g a t t a c h e d to an e l e m e n t s y m b o l i n d i c a t e a m e t a s t a b l e s t a t e and the g r o u n d - s t a t e of the n u c l e u s , r e s p e c t i v e l y . As f a r a s a m e t a s t a b l e s t a t e i s c o n c e r n e d it i s f u r t h e r s p e c i f i e d in the l a s t c o l u m n ( C o m m e n t s ) if n e c e s s a r y .
C o l u m n 2 (Ref . ) : The r e s o n a n c e i n t e g r a l s a r e t aken f r o m b i b l i o g r a p h i c a l r e f e r e n c e s , a l i s t of which f o l l o w s the t a b l e .
C o l u m n 3 (Symbol) : Symbol r e f e r s to the r e s o n a n c e i n t e g r a l quan t i t y , the va lue of which is g iven in c o l u m n 4 . T h e fo l lowing n o t a t i o n s h a v e b e e n u s e d :
I = R e d u c e d r e s o n a n c e i n t e g r a l , i . e . wi th the 1 / v componen t s u b -t r a c t e d , t a k e n o v e r the whole e p i - M a x w e l l i a n s p e c t r u m
RI = R e s o n a n c e i n t e g r a l above t h e c a d m i u m cutoff , i. e. n o r m a l l y above 0 .5 eV.
15
16 ALBINSSON
Column 4 (Value): H e r e a r e given the va lues of I o r RI, depending on the nota t ion in co lumn 3, e x p r e s s e d in un i t s of b a r n s .
Column 5 (Method): The fol lowing no ta t ions a r e used to ind ica te the method f o r obta in ing the r e s o n a n c e i n t e g r a l :
ac t = ac t iva t ion , with o r without the c a d m i u m method , abso lu te ac t iva t ion , o r c a d m i u m r a t i o r e l a t i v e to t h e r m a l ac t iva t ion
a b s = a b s o r p t i o n
r e a c t = f r o m r e a c t i v i t y m e a s u r e m e n t s
p i l e ose = c o m p a r i s o n of p i l e - o s c i l l a t o r r e a c t i v i t y to a s t a n d a r d m a s s spec = c o m p a r i s o n of i r r a d i a t e d and n o n - i r r a d i a t e d m a t e r i a l
u s ing the m a s s - s p e c t r o m e t e r me thod
c a l c = ca l cu la t ed f r o m m e a s u r e d c a p t u r e c r o s s - s e c t i o n s
t of f , = f r o m t i m e - o f - f l i g h t m e a s u r e m e n t s us ing a f a s t chopper
r e c = r e c o m m e n d e d in the r e f e r e n c e
eva l = eva lua ted in the r e f e r e n c e
Co lumn 6 ( C o m m e n t s ) : As the s t a n d a r d s f o r the r e s o n a n c e i n t e g r a l s m a y v a r y f r o m one e x p e r i m e n t to a n o t h e r , m o s t of them a r e p r e s e n t e d . . Th i s i s done in a way s i m i l a r to tha t u sed by D r a k e [1], i . e . Au (1558) m e a n s that in the p a r t i c u l a r e x p e r i m e n t p r e s e n t e d in the r e f e r e n c e the s t a n d a r d f o r RI was gold with the va lue of 1558 b a r n s ( see a l s o below). If the RI o r I va lues in the l i t e r a t u r e a r e not g iven in a d i r e c t f o r m , a s p r e s e n t e d in co lumn 4, but f o r e x a m p l e a s the r a t i o of RI/cr0, t h i s is ment ioned h e r e . F o r s imp l i c i t y , aQ s t a n d s f o r the a b s o r p t i o n c r o s s - s e c t i o n at the e n e r g y of 0.0253 eV. The RI (o r I) va lue g iven in co lumn 4 i s then the one obta ined by mul t ip ly ing the RI/o-Q (or I / c t 0 ) r a t i o by the r e l e v a n t c r o s s - s e c t i o n va lue found in S h e r ' s a r t i c l e [3] in t h i s Handbook. In a few c a s e s the r e s u l t s of the e x p e r i m e n t s a r e e x p r e s s e d a s Wes tco t t S0 v a l u e s [4], i . e . SQ= 2 / J r - I/CTq, w h e r e I i s the r e d u c e d r e s o n a n c e i n t e g r a l and CTq i s the a b s o r p t i o n c r o s s - s e c t i o n at the e n e r g y of 0.0253 eV. The RI and l v a l u e s a r e a l s o obta ined h e r e by u s i n g t h e p e r t i n e n t va lue of CT given by S h e r [3].
S t a n d a r d s used in the tab le
U n l e s s o t h e r w i s e s t a ted in co lumn 6, the r e s o n a n c e - i n t e g r a l va lues a r e g iven so a s to c o n f o r m to the convent ions used by Drake [1], name ly :
(1) T h e r e s o n a n c e i n t e g r a l is def ined by
R . = / „ , * , §
E C
(2) The c a d m i u m cutoff e n e r g y , E c , i s s e t at 0.5 eV.
(3) The 1 /v con t r ibu t ion is t aken f r o m Mackl in and P o m e r a n c e [5] a s 0.44 CTq.
INFINITE-DILUTION RESONANCE INTEGRALS 17
(4) N o r m a l i z a t i o n s t a n d a r d s f o r the r e s o n a n c e i n t e g r a l s of 197Au and 5 9Co a r e r e s p e c t i v e l y :
RI (197Au) = 1550 b
RI (59Co) = 75. 0 b
The c o r r e s p o n d i n g 2 2 0 0 - m / s c r o s s - s e c t i o n s have been chosen f r o m Sher [3] a s :
a0 (197Au) = 98.8 b
aQ (59Co) = 37.5 b
A C K N O W L E D G E M E N T S
The au tho r is g r e a t l y indebted to D r . J . J . Schmidt , f r o m the IAEA N u c l e a r Data Sect ion, and to D r s . N. Tubbs and A. Schet t , f r o m the NEA Neut ron Data Compi la t ion Cen t r e , f o r quickly supplying the n e c e s s a r y l i s t i ngs .
R E F E R E N C E S T O I N T R O D U C T I O N
[ 1 ] DRAKE, M . K . , Nucleonics 24 8 (1966) 108. [ 2 ] CINDA 73 and SUPPLEMENT, An Index to the Literatute on Microscopic Neutron Data, IAEA, Vienna(1973). [ 3 ] SHER, R., "2200 me t r e / s ec neutron activation cross-sections", this Handbook. [ 4 ] WESTCOTT, C . H . , WALKER, W . H . , ALEXANDER, T . K . , "Effective cross sections and cadmium ratios
for the neutron spectra of thermal reactors", 2nd Int. Conf. Peaceful Uses At. Energy (Proc. Conf. Geneva, 1958) 16, UN, New York (1958) 70.
[ 5 ] MACKLIN, R. L. , POMERANCE, H. S . , "Resonance capture integrals", 1st Int. Conf. Peaceful Uses At. Energy (Proc. Conf. Geneva, 1955) 5, UN, New York (1956) 96.
18 ALBINSSON
T A B L E OF INFINITE-DILUTION RESONANCE INTEGRALS
Isotope Ref. S y m b o l Value (b) M e t h o d C o m m e n t s
Li 1 RI 28 pile ose Au (1558)
2 RI 32.2 react Li (32.2). Reactor meas-urements, not corrected for deviation from 1/E
B 2 RI 280 ± 40 react Li (32.2). Reactor meas-urements , not corrected for deviation from 1/E
1 4 n 2 RI 4.8 ± 2.4 react Li (32.2). Reactor meas-urements, not corrected for deviation from 1/E
1 8 0 3 RI (8.5 ± 0.4) -4 x 10 calc Calculated from measured cross-section relative to o ( 2 3Na) 0
1 9 f 2 RI 2.3 ± 0.5 react Li (32.2). Reactor meas-urements, not corrected for deviation from 1/E
4 RI 0.041 ± 0 . 0 0 1 act Au (1551). RI/o measured o
RI 0.023 ± 0.005 act Resonance parameters 2.7
to 1 500 keV
2 2 N a 5 RI 203 000 ± 27 000 act Co (69.9). Cd thickness coefficient 2.293
2 3 N a 1 RI 0.251 pile ose Au (1588)
4 RI 0.37 ± 0 . 0 1 act Au (1551). RI/o measured o
6 RI 0.291 ± 0.012 act Au (1550)
7, 11 I 0.07 ± 0 . 0 1 act Au (1490). RI = 0.312
8 I 0.07 ± 0 . 0 1 act Au (1490). RI = 0.311
9 RI 0.514 act Au (1607)
10 I 0.080 ± 0.012 act Au (1514). RI = 0.317
INFINITE-DILUTION RESONANCE INTEGRALS 19
Isotope Ref. Symbol Value (b) Method Comments
2 3 N a 40 RI 0 32 ± 0.03 act Au (1551). E = 0 .2 eV (cont. )
2 3 N a RECOMMENDED VALUE RI 0 31 FOR 2 3 N a
Mg 1 RI 0 . 92 p i l e ose Au (1558)
12 I 0 045 ± 0.020 p i le ose Au (1513). RI = 0.07
Mg 4 RI 0 036 ± 0.002 act Au (1551). RI/o measured o
10 I 0 008 ± 0.012 p i l e ose Au (1513). RI = 0.025
RECOMMENDED VALUE RI = 0.030 FOR 2 6Mg
2 7 a i 1 RI 0 . 19 pile ose Au (1558)
1 RI 0 17 act Au (1558)
12 I <0 08 pile ose Au (1513)
4 RI 0 25 act Au (1551). RI/a measured o
10 I 0 066 ± 0.009 act Au (1514). RI = 0.17
13 RI 0 159 act Cd-ratio and a used to o calculate RI
RECOMMENDED VALUE RI = 0.17
Si 1 RI 0 58 pile ose Au (1558)
4, 7 RI 0 69 act Au (1551) RI/o measured 0
RECOMMEN DED VA LUE RI = 0.6
3 1P 1 RI <2 pile ose Au (1558)
1 RI 0 092 act Au (1558)
S 1 RI 0 64 pile ose Au (1558)
Cl 1 RI 12 1 pile ose Au (1558)
2 RI 12 8 ± 1.7 react Li (32.2). Reactor meas-urements, not corrected for deviation from 1/E
20 ALBINSSON
Isotope Ref. Symbol Value (b) Method Comments
CI (cont . )
35 CI
37 C I
14
15
4
79
10
RI
RI
RI
I
I
14.0 ± 0.7
<20
calc
act
0.213 ± 0.009 act
0.35 ± 0.10 act
0.12 ± 0.06 act
37.
Calculated from measured capture cross-section
Co (69.9)
Au (1551). RI/o measured o
Au (1510). RI = 0.37
Au (1514). RI = 0.31
RECOMMENDED VALUES: RI = 0.17 FOR CI AND 0.12 FOR CI
40 Ar 16 RI 0.42 act Au (1534)
41..
1
2
4
17
18
10
RI
RI
RI
RI
RI
1.13
3.5
1.37
1.35
1.09
0.77
pile ose Au (1558)
1.1 react
0.06 act
0.06 calc
act
0.15 act
Li (32.2). Reactor meas-urement, not corrected for deviation from 1/E
Au (1551). RI/o measured o
E = 0.68 eV c a = 1.2 + 0.1
o
Au (1514). RI = 1.40
RECOMMENDED VALUE RI = 1.28 FOR 4 1 K
Ca 1 RI 1 87 pile ose Au (1558)
4 4Ca 19 RI 0 56 + 0 01 act Co (69.9)
4 6Ca 6 RI 0 32 + 0 12 act Au (1550)
4 8Ca 4 RI 0 90 + 0 01 act Au (1551). RI/o measured o
INFINITE-DILUTION RESONANCE INTEGRALS 21
Isotope Ref. Symbol Value (b) Method Comments
RI
RI
RI
10.2
13
10.7
Au (1558). Cd ratio rela-tive to thermal activation
Au (1551). RI/a measured o
0.9 act Au (1550)
RECOMMENDED VALUE RI = 11
4
10
RI
RI
RI
I
3.2
3.8 ± 0.9
pile ose Au (1558)
react
5.5 ± 0.4 act
0.038 ± 0.011 act
Li (32.2). Reactor meas-urement, not corrected for deviation from 1/E
Au (1551). RI/c measured o
Au (1514). RI = 0.12
12
1
4
50
20
10, 7
23
18
RI
I
RI
RI
RI
I
I
RI
RI
3.3 ± 0.8 react Li (32.2). Reactor meas-urement , not corrected for deviation from I/E
<1.6 pile ose Au (1513). RI < 2.1
2.15 act Au (1558)
3.0 + 0.1 act Au (1551). RI/o measured o
2.45 ± 0.03 act Neutron energy range
1 - 5 0 000 eV
0.36 ± 0.10
0.48 ± 0.09
4.10
2 . 6 2
0.40 act
E = 0.68 eV. RI = 2.52 c
Au (1514). RI = 2.64
E = 0 . 6 8 eV c a = 4.5 ± 0.5
RECOMMENDED VALUE RI = 2.7
22 ALBINSSON
Isotope Ref. Symbol Value (b) Method Comments
1
2
21
23
21
22
4
23
21
23
21
23
23
RI
RI
RI
RI
RI
RI
RI
RI
RI
RI
RI
RI
RI
2.04
2 .6
pile ose Au (1558)
7.4
10.4
7.8
8.58
8.4
10.75
0.03
1.1
1.5 ± 0.1
1.58 ± 0.16
0.4
0.4
0.4
0.86
0.43 ± 0.04
0.22 ± 0.03
RECOMMENDED VALUES RI = 2.0 FOR Cr RI = 8.5 FOR 5°Cr
calc
calc
act
calc
act
calc 0.7
1.00 act
0.01 act
Li (32.2). Reactor meas-urement, not corrected for deviation from 1/E.
Calculated from data from pure isotopes
Co (69.9)
Au (1551). RI/o measured
5 5 m „ 24 RI 14 ab s Au (1558)
25 I 10 3 pile ose Au (1540). RI = 16
1 RI 10 7 pile ose Au (1558)
2 RI 11 7 ± 1.5 react Li (32.2)
12 I 4 5 ± 2.5 pile ose Au (1513). RI = 10.5
INFINITE-DILUTION RESONANCE INTEGRALS 23
Isotope Ref. Symbol Value (b) Method Comments
55Mn (corn. )
4 RI 13 8 + 0.8 act Au (1551). RI / o measured 0
74 I 7 8 ab s Au (1525). RI = 13.7
28, 7 RI 14 2 E = 0.55 eV c
26 RI 15 0 + 1.4 act
8 RI 14 1 act Au (1490)
27 RI 14 6 act Au (1500)
147 RI 18 1 + 1.2 act Au (1530)
13 RI 15 6 act Cd-ratio and o used to o calculate RI
9 RI 17 6 act Au (1607)
29 RI 13 9 + 0.7 act Au
40 RI 12 8 + 1.1 act Au (1551) E = 0.2 eV c
18 RI 13.4 + 0.5 act E = 0.68 eV c
148 I 5 7 + 1.7 RI = 11.6. Mn bath method
REC0MME1 TOED VA] LUE RI = 14
Fe 1 RI 2 17 pile ose Au (1558)
2 RI 2 3 + 0.4 react Li (32.2). Reactor meas-urements , not corrected for deviation from 1/E
12 RI 1 86 pile ose Au (1513)
25 I 1 0 pile ose Au (1540). RI = 2.14
58 Fe 4, 7 RI 1 7 + 0.1 act Au (1551). RI/a measured 0
6 RI 1 18 + 0.0 7 act Au (1550). a = 1 . 2 3 o
24 ALBINSSON
Isotope Ref. S y m b o l Value (b) Method C o m m e n t s
5 8 F e 30 I 0.58 ± 0.16 act Au (1490). RI = 1.15 (cont. )
CO = 1.2 FOR Fe RECOMMENDED VALUE RI
CO = 1.2 FOR Fe
5 8Co 31 RI 2.5 x 105 act Co (75). Measured 9.0 h isomer only
150 RI (5.5 ± 2.2) x 105 act 9.1 h isomer
149 I (7.6 ± 1.6) x 105 act T = 13.3 h for the decay curve (T 1 / 2 = 9.4 h)
5 9Co 4 RI 76.1 act Au (1551). RI/o measured o
6 RI 77 ± 4 act Au (1550)
7 RI 70 ± 6 rec
67 I 50 ± 5 pile ose Au (1540). RI = 66.7
24 RI 74.6 ab s Au (1558)
32 RI 72.1 act Au (1535)
33 RI 73.2 act Au (1565)
RECOMME1 TOED VA LUE RI = 7 5 . 0 FOR 5 9Co
Ni 1 RI 4.03 pile ose Au (1558)
2 RI 3.2 ± 0.5 react Li (32.2). Reactor meas-urement, not corrected for deviation from 1/E
25 I 1.0 pile ose Au (1540). RI = 1.04
6 0Ni 23 RI 2.10 ± 0.21 act
6 2Ni 19 RI 9.6 ± 3.5 act Co (69.9)
6 V 4 RI 0.77 ± 0.03 act Au (1551). RI/o measured o
INFINITE-DILUTION RESONANCE INTEGRALS 25
Isotope Ref. Symbol Value (b) Method Comments
64., . Nl 10, 7 I 0.44 + 0 14 act Au (1514) RI = 1.1 (con t . )
RECOMMENDED VALUE RI = 0 . 9 FOR 64 . Ni
Cu 1 RI 4.15 pile ose Au (1558)
2 RI 3.7 + 0 8 react Li (32.2) Reactor meas-urement, not corrected for deviation from 1/E
25 I 2.2 pile ose Au (1540) RI = 3.85
12 I 1.2 + 0 5 pile ose Au (1510) RI = 3.07
35 I 2.6 + 0 3 calc RI = 4.31
112 RI 3.3 + 0 3 react B std
1 RI 3.82 act Au (1558)
6 3Cu 1 RI 4.68 act Au (1558)
8 I 3.09 + 0 15 act Au (1490) RI = 5.12
11 I 3.17 + 0 18 act Au (1490) RI = 5.42
4 RI 5.7 + 0 3 act Au (1551) RI/o measured o
10, 7 I 2.5 + 0 2 act Au (1514) RI = 4.4
40 RI 5.6 + 0 5 act Au (1551) E = 0.2 eV c
151 RI 4.2 act Au (1555)
6 5Cu 1 RI 2.42 act Au (1558)
8 I 1.38 + 0 40 act Au (1490) RI = 2.64
11 I 1.39 + 0 22 act Au (1490) RI = 2.63
4 RI 2.6 + 0. 2 act Au (1551) RI/a measured o
10 I 1.17 ± 0. 12 act Au (1514) RI = 2.2
26 ALBINSSON
Isotope Ref. Symbol Value (b) Method Comments
RECOMMENDED VALUES RI = 3.8 FOR Cu
RI = 5.0 FOR 6 3Cu RI = 2.5 FOR 6 5 C u
Zn 1 RI 2 pile ose Au (1558)
2 RI 3 4 + 0.8 react Li (32.2). Reactor meas-urements, not corrected for deviation from 1/E
36 I 1 6 + 0.2 pile ose Au (1510). RI = 2.2
6 4 Z n 4 RI 1 8 + 0.1 act Au (1551). RI/o measured o
6 RI 1 43 + 0.10 act Au (1550)
30 I 0 67 + 0.14 act Au (1490). RI = 0.91
37 I 1 50 act Measured S = 2.06 ± 0.03 0 S (Au) = 17.7. RI = 1.8 o
42 RI 1 34 ± 0.06 act Co (37.5)
6 8 Z n m 4 RI 0 22 + 0.02 act Au (1551). Rl/o measured o
6 RI 0 25 ± 0.03 act Au (1550)
30 I 0 17 + 0.03 act Au (1490). RI = 0.24
6 8 Z n * 37 I 3 30 act Measured S = 3.72 ± 0.14 o S (Au) = 17.7. RI = 3.74 o
7 2Zn 38 RI 0 07 eval
RECOMMENDED VALUES RI = 2.8 FOR Zn 64
RI = 1.6 FOR Zn RI = 0 . 2 4 FOR 6 8 Z n n
Ga 2 RI 11.7 ± 2.7 react Li (32.2). Reactor meas-urements, not corrected
for deviation from 1/E
INFINITE-DILUTION RESONANCE INTEGRALS 27
Isotope Ref. Symbol Value (b) Method Comments
6 9 G a 1 RI 12.3 act Au (1558)
4 RI 10.5 + 1 9 act Au (1551) RI/a measured o
45 I 14.8 ± 1 5 act Au (1514) RI = 15.5
7 1 G a 1 RI 21.6 act Au (1558)
4 RI 12.7 ± 0 3 act Au (1551) . RI/o measured o
45 I 29.1 ± 2 9 act Au (1514) . RI « 31.2
7 2Ga 38 RI 25.7 eval
RECOMMEh IDED VA LUES RI RI
= 13 FOR
= 25 FOR
6 9 G a 7 1 G a
Ge 2 RI 3.5 + 2 9 react Li (32.2). Reactor meas-urements, not corrected for deviation from 1/E
7 2Ge 38 RI 0.55 eval
7 3Ge 38 RI 34.1 eval
7 V 38 RI 0.36 eval
4 RI 0.83 + 0 03 act Au (1551) . RI/a measured 0
39 I 0.79 act Measured I/o RI= 1.02 0
7 6Ge 38 RI 0.18 eval
7 6Ge« 4 RI 0.8 + 0 1 act Au (1551) . RI/a measured 0
7 6 G e m 39 I 1.99 + 0 36 act Measured I/o . RI - 2.1 0
7 7Ge 38 RI 7.01 eval
74 RECOMMENDED VALUE RI = 0.9 FOR Ge
28 ALBINSSON
Isotope Ref. Symbol Value (b) Method Comments
75 As
76 As
77 As
41
108
38
4
40
45
38
38
I
RI
RI
RI
RI
I
RI
RI
63
61.5
60.53
42
68
59
216 .1
68.25
pile ose RI = 65 ± 7
act Au (1558)
eval
1
15
6
Au (1551). RI/a measured
Au (1551). E = 0.2 eV c
Au (1514). RI = 61
eval
eval
RECOMMENDED VALUE RI = 63 FOR 7 5As
Se
74 Se
76 Se
77 Se
78, Se
42
43
38
38
46
38
43
RI
RI
I
RI
RI
RI
I
RI
I
9.6
589
504
451
42.08
28.89
14
7.09
3.6
1 . 2
± 12
act
eval
eval
eval
eval
Li (32.2). Reactor meas-
urements, not corrected
for deviation from 1/E
Co (37.5)
Measured S = 10.3 + 0.1 o RI = 528
Au (1551). RI/a measured o
0.1 3.9 min 7'se m. Measured S = 12.3 ± 0.3. RI = 3.7
INFINITE-DILUTION RESONANCE INTEGRALS 29
Isotope Kef. Symbol Value (b) Method Comments
79 Se
80, Se
38
38
43
46
4
RI 55.48 eval
RI 1.000 eval
I 1.30 ± 0.02 act
I
RI
rec
RECOMMENDED VALUES RI = 500 FOR Se
RI
1.3
0.50 ± 0.02 act
74„
Measured S = 2.65 ± 0.02 o
RI = 1.31
Au (1551). RI/a measured. = -7 • 81c m 57 m m Se
1.30 FOR 8 0Se
Br 2 RI 118 + 14 react Li (32.2). Reactor meas-urements, not corrected for deviation from 1/E
7 9Br 1 RI 153 act Au (1558)
4 RI 155 + 4 act Au (1551). RI/o measured o
10 I 92 + 10 act Au (1514). RI = 96
108 RI 98 8 act Au (1558)
8 1Br 38 RI 59 61 eval
43 I 65 + 10 act Measured S RI - 66
= 24.3 ± 0.4 o
4 RI 45 + 1 act Au (1551). RI/a measured 0
44 RI 56 + 5 eval
10 I 50 + 5 act Au (1514). RI = 51
108 RI 50 6 act Au (1558)
34 RI 41 3 ± 1.0 act Au (1558)
30 ALBINSSON
Isotope Ref. Symbol Value (b) Method Comments
38 RI 90.46 eval
79. RECOMMENDED VALUES RI = 125 FOR Br
RI = 50 FOR 8 1Br
47
38
46
38
46
38
46
46
38
48
38
46
RI
RI
I
RI
I
RI
I
I
RI
RI
RI
I
58.8 ± 2.8
191.5
190
217.3
150
3.60
6
2
8 .16
1.8 ± 1.0
0.48
0
mass spec E c = 0.4 eV
eval
eval
eval
eval
eval
eval
eval
eval
Absorption. RI = 200
Absorption. RI = 240
. . . 83 m 4.4 hrs Kr
10.76 yrs 8 3 K r 9
spec E = 0.54 eV
eval
eval
38
37
RI
RI
I
RI
9.0 2.3
7.00
7.34 ± 0.68
eval
3.56 ± 0.20 act
Li (32.2). Reactor meas-urement, not corrected for deviation from 1/E
Measured S = 18.4 ± 0.6. o
S (Au) = 17.7. RI = 7.5
Au (1551). RI/o measured. 8 V *
INFINITE-DILUTION RESONANCE INTEGRALS 31
Isotope Ref. S y m b o l Value (b) Method C o m m e n t s
8 5Rb (cont. )
4 RI 0 . 97 ± 0.03 act Au (1551). RI/o measured. 8 6 R b m
6 RI 8. 0 ± 0.9 act Au (1550)
42 RI 24 7 ± 1.7 act Co (37.5)
8 V 38 RI 43 6 eval
8 7Rb 38 RI 2 47 eval
4 RI 1 9 ± 0.1 act Au (1551). RI/o measured o
46 I 2 3 rec
RECOMMENDED VALUES RI = 7 FOR 8 5 Rb RI = 2.3 FOR 8 7 Rb
Sr 1 RI 17 1 pile ose Au (1558)
2 RI 10 0 ± 2.6 react Li (32.2). Reactor meas-urement, not corrected for deviation from 1/E
8 4Sr 49 I 6 7 ± 1.3 act RI = 7.0
4 RI 7 8 ± 0.8 act Au (1551). RI / a measured o
6 RI 7 6 ± 1.0 act Au (1550). a = 0.80 o
8 6Sr 38 RI 3 35 eval
4 RI 4 56 ± 0.24 act Au (1551). RI/o measured o
46 I 3 0 rec
8 7Sr 46 I 100 rec
8 8Sr 38 RI 0 .05 eval
46 I 0 .06 rec
32 ALBINSSON
Isotope Ref. Symbol Value (b) Method Comments
89 Sr
90, Sr
91 Sr
38
38
38
RI
RI
RI
0.36
0.41
0.62
eval
eval
eval
RECOMMENDED VALUE RI 7.5 FOR 8 4Sr
89Y 1 RI 0.84 act Au (1558)
38 RI 0.68 eval
4 RI 0.89 act Au (1551). RI/o measured , . . 90 m 0 3.1 hrs y
46 I 0.3 rec
45 I 0.44 ± 0.06 act Au (1514). RI = 0.97. t., u 90v9 64 hrs y
9 1 y 38 RI 2.61 eval
38 RI 1.94 eval
38 RI 0.99 eval
RECOMMENDED VALUE RI 0 . 9 FOR 8 9 Y ( 3 . 1 h r s 9 0 Y m )
Zr 1
2
36
25
50
RI 2.9 pile ose Au (1558)
RI 3.7 ± 0.5 react Li (32.2). Reactor meas-urement, not corrected for deviation from 1/E
I 0.60 ± 0.06 pile ose Au (1510). RI = 0.65
I 1.06 pile ose Au (1540). RI = 1.08
RI 1.1 ± 0.2 act Neutron energy range 1 - 5 0 000 eV
INFINITE-DILUTION RESONANCE INTEGRALS 33
Isotope Ref. Symbol Value (b) Method Comments
152
38
50
46
38
51
50
46
38
46
38
46
38
4
50
52
53
44
46
RI
RI
RI
0.92 ± 0.10 pile ose Au (1540)
RI
RI
RI
RI
I
RI
I
RI
RI
RI
RI
RI
I
I
0.085 eval
0.20 ± 0.03 act
0.15
7.81
5.0
7.3
6.5
0.297
0.5
26.0
22
0.21
0.30
0.398
eval
eval
1.5 react
0.8 act
eval
eval
eval
eval
eval
eval
0.57 ± 0.03 act
0.23 ± 0.03 act
0.03 act
0.37 + 0.04 eval
Neutron energy range
1 - 5 0 000 eV
Neutron energy range 1 - 5 0 000 eV
Au (1551). RI/o measured o
Neutron energy range
1 - 5 0 000 eV
Measured s = 6.62 ± 0.06. o
I = 0.369 ± 0.037
0.26 eval
34 ALBINSSON
Isotope Ref. Symbol Value (b) Method Comments
95 Zr
96 Zr
97, Zr
38
38
52
53
46
44
38
RI
RI
RI
I
I
I
RI
5.42
5.30
5.0 ±
4.97 ±
6.0
5.0 ±
1.55
0.4
0.05
0.5
eval
eval
act
act
eval
eval
eval
Measured S = 945 ± 40. o
RI = 4.97
RECOMMENDED VALUES RI = 0.95 FOR Zr
RI = 0.38 FOR 9 4 Z r q c
RI = 5.0 FOR Zr
93, Nb
95, Nb
1
12
54
108
1
4
45
38
RI
I
I
RI
RI
8.5
13 ± 5
8.15 ± 0.65
5.8
4
8.4
pile ose Au (1558)
pile ose Au (1513). RI = 1 2 . 7
Au (1558)
pile ose Au (1500). RI = 8.73
act
act Au (1558)
2.6 act
RI
6.2 ± 1.4
25.1
Au (1551). RI/o measured, o a = 1.15 o
Au (1514). RI = 6.7
eval
93 RECOMMENDED VALUE RI = 8.0 FOR Nb
INFINITE-DILUTION RESONANCE INTEGRALS 35
Isotope Ref. Symbol Value (b) Method Comments
12
35
55
25
56
57
38
12
46
38
46
38
46
38
35
58
8
11, 3
RI
I
I
RI
I
RI
RI
RI
I
I
RI
I
RI
I
RI
I
RI
I
I
eff
13.8
19.0
25
32.1
22.5
27
29.23
106.3
100
100
26.11
25
15.05
15
6.698
6.3
± 1.7
± 2.5
± 1
± 3.1
± 20
react
pile ose
calc
pile ose
pile ose
t of f
react
eval
pile ose
eval
eval
eval
eval
eval
eval
calc
6.69 ± 0.13 react
10.7 ± 2.3 act
9.9 ± 1.1 act
Li (32.2). Reactor meas-urement, not corrected for deviation from l/E
Au (1513). RI = 19.5
RI = 26.2
Au (1558)
Au (1540). RI = 23.1
Calculated from resonance
parameters
RI calculated as a func-
tion of plate thickness
Au (1513). RI = 101
RI = 6.37
Au (1558)
Au (1490). RI = 9.1
Au (1490). RI = 8.9
36 ALBINSSON
Isotope Ref. Symbol Value (b) Method Comments
4
6
44
46
42
59
108
38
38
35
60
11
108
37
4
46
RI
RI
I
I
RI
I
RI
RI
RI
I
RI
I
RI
I
RI
I
1.3 ± 0.1
7.1 ± 1.0
7 ± 1
8.0
6.79 ± 0.42
4.2
3.9
0.15 6.38
21.0
24.8
4.00
1.1
3.73
4.06
3.29
3.8 ± 0.2
0.2
0.20
0.23
0.2
RECOMMENDED VALUES RI = 25 FOR Mo RI = 7.5 FOR 9 8 M O
RI = 3.9 FOR 1 0°Mo
act
eval
eval
act
eval
eval
cal
act
Au (1551). RI/o measured o
Au (1550)
Co (37.5)
RI = 6.4
Au (1558)
RI = 1.19
Au (1558)
Au (1490). RI - 4.15
Au (1558)
Measured S - 21.7 ± 0.8 o
S (Au) - 17.7. RI « 3.9 o
Au (1551). RI/o measured
9 9 T c 38 RI 197.9 eval
12 I 60 ± 20 pile ose Au (1513). RI = 92
INFINITE-DILUTION RESONANCE INTEGRALS 37
Isotope Ref. Symbol Value (b) Method Comments
46 ( c o n t . )
RECOMMENDED VALUE RI = 200
200
9 6Ru 61 RI 5 51 + 0 40 act Mn (13.1)
4 RI 4 6 ± 0 2 act Au (1551). RI/a measured o
49 I 6 67 + 0 11 act RI = 6.7
" R U 61 RI 195 + 20 mass spec Co (75)
100. Ru 38 RI 11 57 eval
61 RI 11 3 + 2 6 act Co (75)
1 0 1Ru 61 RI 79 2 + 8 0 act Co (75)
38 RI 79 6 eval
46 I 76 eval
1 0 2RU 38 RI 4 266 eval
37 I 4 19 + 0 04 act Measured S = 3.76 ± 0.03 o S (Au) = 17.7. RI = 4.8 o
4 RI 4 3 + 0 4 act Au (1551). RI/o measured o
46 I 4 2 rec
61 RI 4 16 + 0 41 act Co (75)
10 3„ Ru 38 RI 66 0 eval
104 Ru 38 RI 5 43 eval
49 I 4 36 act RI = 4.6
4 RI 6 1 + 0 3 act Au (1551). RI/o measured o
62 RI 4 6 + 0 4 act Co (75)
38 ALBINSSON
Isotope Ref. Symbol Value (b) Method Comments
1 0 4RU
(cont . )
105. Ru
106. Ru
46
38
38
63
64
RI
RI
RI
RI
4.4
5.10
1 . 2 8
0.6
2 .0
eval
eval
0 .6
Co (75)
Co (72.7)
Q£ RECOMMENDED VALUES RI = 5.5 FOR Ru
RI = 11 FOR 1 0°Ru 102
RI = 4.2 FOR Ru 103
RI = 5.2 FOR Ru RI = 1.0 FOR 1 0 6Ru
1 0 3Rh 1 RI 592 pile ose Au (1558)
65 RI 1 200 + 100 react Au (1558)
1 RI 675 act Au (1558)
66 I 1 080 + 40 act In std
4 RI 610 + 24 act Au (1551). RI/o measured . , . 104„, m 0 4.4 min Rh
59 I 78 + 7 act 4.4 min 1 0 4Rh m. RI = 85
59 I 1 054 + 74 act 1 0 4Rh 8. RI = 1 120
38 RI 1 013. 7 eval
46 I 1 100 rec
1 0 5Rh 38 RI 1 7 x io4 eval
62 RI 1 65 x 104 1 act
RECOMMENDED VALUES RI = 1 100 FOR 1 0 3Rh RI = 17 000 FOR 1 0 5Rh
INFINITE-DILUTION RESONANCE INTEGRALS 39
Isotope Ref. Symbol Value (b) Method Comments
38
38
46
38
62
46
38
38
4
46
38
38
4
46
38
RI
RI
RI
I
RI
RI
I
RI
RI
RI
RI
RI
RI
RI
22.3
22.9
74.8
85
5.601
5.96 ± 0.57
5.6
80.4
215.2
186 ± 9
240
60.9
7.10
4.6
6 . 0
1.99
106_
pile ose Au (1558)
eval
eval
rec
eval
act
rec
eval
eval
eval
eval
0.6 act
eval
Au (1551). RI/"0 measured.
13.47 hrs 1 0 9 P d 8
Au (1551). RI/cr measured. Ill e ° 22 min Pd g
RECOMMENDED VALUE RI = 5.8 EOS. Pd
Ag 1 RI >650 pile ose Au (1558)
2 RI 466 ± 70 react Li (32.2). Reactor meas-urement, not corrected for deviation from 1/E
40 ALBINSSON
Isotope Ref. Symbol Value (b) Method Comments
12
67
68
115
71
116
1
4
45
12
1
69
38
4
4
22, 7
44
110
70
46
46
RI
I
RI
RI
RI
RI
I
RI
I
RI
RI
I
I m
810
670
780
715
755
750
87.2
144
77
I 1 870
RI 1 240
RI 47.5
RI 1 444.2
RI 1 118
RI 57
81.1
1 500
38
± 50
± 20
+ 20
± 30
± 40
± 6
± 5
± 200
± 6 . 6
± 68
± 1
± 2 . 2
± 200
± 8
57.0 ± 16.4
pile ose Au (1513). RI = 835
pile ose Au (1540). RI = 698
pile ose Au (1540)
pile ose Au (1550). RI = 740
rec
act Au (1565)
act Au (1558)
act Au (1551). RI/a measured o
act Au (1514). RI = 90
pile ose Au (1513). RI = 1 910
act Au (1558)
act
eval
act
act
eval
act
act
Au (1549). 253 days U 0 A g m
Au (1551). RI l a measured
Au (1551). RI/o measured. , 110, m 0
253 days Ag
Co (69.9). 253 days 1 1 0Ag™
249 days 11°Agnl
S (Au) = 17.88 + 0.50. o I/o » 16.28 ± 0.45 o
1 450
50
INFINITE-DILUTION RESONANCE INTEGRALS 41
Isotope Ref. Symbol Value (b) Method Comments
38
46
RI
I
105.8
100
eval
RECOMMENDED VALUES RI = 755 FOR Ag 109 RI = 1 400 FOR Ag
Cd 71 RI 102 2 rec Absorption
1 1 0Cd 38 RI 51 11 eval
4 RI la 0 19 7 + 0 9 act U 1 c d m
46 I 37 rec
1 U C d 38
46
RI
I
45
47
88 eval
rec
1 1 2Cd 38
46
RI
I
14
17
18 eval
rec
U 3 C d 38 RI 365 6 eval
1 1 4Cd 38 RI 16 45 eval
72 RI 23 3 + 2 0 act
4 RI / a 0 11 4 ± 0 6 act Au (1551). RI/o measured 53.5 hrs Cd8. RI = 3.4
46 I m 3 rec , 115„,m 43 days Cd
46 I 8 20 rec 53.5 hrs U 5 C d 8
1 1 5Cd 38 RI 79 9 eval
n 6 C d 38 RI 1 29 eval
RECOMMENDED VALUES RI = 3 FOR U 4 C d ( U 5 C d m ) 114 115 e RI = 20 FOR Cd ( Cds)
42 ALBINSSON
Isotope Ref. Symbol Value (b) Method Comments
12
67
37
38
1
9
11
73
74
RI 2 220 ± 300
10, 7
29
RI
3 600 ± 350
3 140 ± 70
158
213
RI 2 500
I 3 530
RI 2 190
I 2 710
RI 3 350
± 4
10
RI 3 221.1
RI 2 640
I 2 886
I 3 200 ± 100
± 85
+ 1 0 0
± 30
± 200
± 150
RECOMMENDED VALUE RI = 2 600 FOR 1 1 5 I n
react Li (32.2). Reactor meas-
urement, not corrected for deviation from 1/E
pile ose Au (1513). RI = 3 740
pile ose Au (1540). RI = 3 290
act Measured S = 24.7 ± 0.5 o S (Au) = 17.7. RI = 160 ° . 114 m 50 days In
eval
act
act
act
act
Au (1551). RI/o measured 114 m ° 50 days In
Au (1558)
Au (1490). RI = 3 440
Au (1530). RI = 3 280
Au. RI/o 0 = 15.37 ± 0.47 ,. . 116 m 54 m m In
Au (1525). RI = 3 620 I/o = 17.3 o
Au (1551). RI/o measured ,. . 116 m 0 54 min In
Au (1514). RI = 2 800
Au
Sn 1 RI 4 56 pile ose Au (1558)
2 RI 5 7 ± 0.7 react Li (32.2). Reactor meas-urement, not corrected for deviation for 1/E
INFINITE-DILUTION RESONANCE INTEGRALS 43
Isotope Ref. Symbol Value (b) Method Comments
12
38
38
4
46
38
46
38
46
38
46
38
46
38
38
4
46
38
38
8.5 ± 2.0 pile ose Au (1513). RI = 8.7
RI
RI
RI
RI
I
RI
I
RI
I
RI
I
RI
I
RI
RI
RI
I
RI
RI
27.4
27.16
17.5
0.49
15
16.57
12
7.41
8
5.32
3.5
1.31
1.5
26.29
0.893
0.83
0.6
2.39
11.34
2.1 act
eval
eval
0.02 act
rec
eval
eval
rec
eval
rec
eval
rec
eval
eval
0.02 act
rec
eval
eval
Au (1551). RI/a = 13.6 o
Au (1551). Rl/a measured o
Au (1551). RI/o measured o
44 ALBINSSON
Isotope Ref. Symbol Value (b) Method Comments
49
4
46
38
38
I
RI
I
RI
RI
7.5
8.7 ± 0.4
9
13.89
0.232
RI = 7.6
Au (1551). RI/cJ measured
eval
eval
RECOMMENDED VALUE RI = 9 FOR 1 2 4Sn (9.7 mill 1 2 5 S n m )
Sb 2 RI 106 + 13 react Li (32.2). Reactor meas-urement, not corrected for deviation from 1/E
112 RI 115 + 12 react B std
1 2 1 s b 38 RI 205. 5 eval
49 I 168 + 26 act RI = 170
4 RI 129 ± 5 act Au (1551). RI l a measured 0
6 RI 169 ± 9 act Au (1550)
108 RI 134 act Au (1558)
1 RI 143 act Au (1558)
10 i 206 + 15 act Au (1514). RI = 210
29 RI 200 + 17 act Au
46 I 200 rec
1 2 2Sb 38 RI 159 0 eval
1 2 3Sb 38 RI 125 6 eval
37 I 97 ± 8 act Measured S « 28.3 ± 2.1 0 S (Au) = 17.7. RI = 100 0
INFINITE-DILUTION RESONANCE INTEGRALS 45
Isotope Ref. Symbol Value (b) Method Comments
1 2 3 s b
(cont . )
124, Sb
125 Sb
126 Sb
127 Sb
128, Sb
4
44
22
46
108
29
10
38
38
38
38
38
RI
I
RI
I
RI
RI
I
RI
RI
RI
RI
RI
219
120
140
130
58.2
116
120
19.25
19.05
64.5
14.7
15.9
11
10
4
eval
act
10
12
Au (1551). RI/a measured o
Co (69.9)
Au (1558)
Au
Au (1514). RI - 122
eval
eval
eval
eval
eval
121 RECOMMENDED VALUES RI = 180 FOR Sb
RI = 120 FOR 1 2 3Sb Te 1 RI 37 pile ose Au (1558)
2 RI 50 ± 6 react Li (32.2). Reactor meas-urement, not corrected for deviation from 1/E
12 I 72 pile ose Au (1513). RI = 74
122 T e 38 RI 46.87 eval
46 I 66 rec
123 T e 38 RI 5 661 eval
46 ALBINSSON
Isotope Ref. Symbol Value (b) Method Comments
46 I 5 400
38
38
46
38
4
46
38
38
4
75
75
46
46
38
38
43
4
46
38
RI
RI
I
RI
RI
I
RI
RI
RI
RI
RI
I
I
RI
RI
I
RI
I
RI
7.94
17.53
18
8.18
8.0
9
48.7
0.08
7.41
eval
eval
rec
eval
0.7 act
rec
eval
1.558 eval
1.2 ± 0.1 act
1.55 ± 0.13 act
0.077 ± 0.006 act
1.5 rec
rec
eval
0.184 eval
0.47 ± 0.14 act
0.34 ± 0.04 act
0.36 rec
Au (1551). RI/o measured
Au (1551). RI/o measured . 129 e ° 69 min Te
Au (1543). o (Te) = 0.20 129 e 69 min Te 8
Au (1543). 34 days 1 2 9 T em
69 min 1 2 9 T e 8
„, , 129„ m 34 days Te
Measured S = 2.10 ± 0.17 o S (Au) = 17.7. RI - 0.48
Au (1551). RI/o measured
0.05 eval
INFINITE-DILUTION RESONANCE INTEGRALS 4 7
Isotope Ref. Symbol Value (b) Method Comments
38 RI 0.007 eval
1 2 8 1 no „ RECOMMENDED VALUES RI = 1.5 FOR Te (69 min Ie B)
RI = 0.08 FOR 1 2 8 T e (34 days 1 2 9 T e m ) 130 RI = 0.4 FOR Te
125, 76 RI 13 730 act Co (75)
1 2 7 I 38 RI 151 8 eval
112 RI 130 + 18 react B std
108 RI 132 act Au (1558)
2 RI 106 + 12 react Li (32.2). Reactor meas-urement, not corrected for deviation from 1/E
12 I 180 + 30 pile ose Au (1513). RI = 177
43 I 145 + 6 act Measured S = 27.8 ± 0.5 o S (Au) = 17.7. RI = 150 o
4 RI 95 ± 5 act Au (1551). RI/a measured o
10 I 145 + 9 act Au (1514). RI = 150
13 RI 146 + 7 act Cd-ratio and a used to o calculate RI
79 I 227 + 45 act Au (1510). RI = 230
46 I 150 rec
111 RI 140 + 20 t of f
129, 38 RI 25 97 eval
77 RI 50 act Co std
111 RI 22 + 7 t of f
46 I 23 rec
48 ALBINSSON
Isotope Ref. Symbol Value (b) Method Comments
130t
131_
133-
135-
38
38
78
46
38
38
RI
RI
RI
I
RI
RI
173.3
10.0
8
8
0.005
0.03
eval
eval
act
rec
eval
eval
127 RECOMMENDED VALUE RI « 150 FOR I
1 2 6 X e 153 RI 38.0 ± 3.8 act Co (75)
1 2 8 X e 38 RI 110.0 eval
46 I 100 rec
1 2 9 X e 46 I 220 rec
1 3 0 X e 38 RI 17.29 eval
46 I 12 rec
1 3 1 X e 38 RI 789.9 eval
46 I 830 rec
132 Xe 38 RI 2.46 eval
46 I 2.4 rec
1 3 3 X e 38 RI 52.25 eval
1 3*Xe 38 RI 4.604 eval
46 I 6 rec
INFINITE-DILUTION RESONANCE INTEGRALS 49
Isotope Ref. Symbol Value (b) Method Comments
1 3 5 X e 38 RI 7 262 eval
1 3 6 X e 38 RI 0 . 120 eval
1 3 3 C s 12 I 490 ± 80 pile ose Au (1513). RI = 550
67 I 450 ± 15 pile ose Au (1540). RI = 465
80 RI 370 ± 50 act Co (74)
38 RI 460. 3 eval
22 RI 495 ± 17 act Co (69.9)
6 RI 437 ± 26 act Au (1550)
10 I 30 ± 6 act Au
29
(1514). h 1 3 4 C s
RI = 30 m
4 RI 360 ± 90 act Au (1551). RI/o measured 0
81 RI 461 ± 25 act Co (75)
46 I 450 rec
1 3 4 C s 38 RI 87 97 eval
1 3 5 C s 38 RI 61 99 eval
82 RI 80 act Co std
46 I 58 rec
1 3 6 C s 38 RI 15 55 eval
1 3 7Cs 38 RI 0 414 eval
RECOMMENDED VALUE RI = 465 FOR 1 3 3 C s
Ba 1 RI 7.4 pile ose Au (1558)
2 RI 12.6 ± 1.7 react Li (32.2). Reactor meas-urement, not corrected for deviation from 1/E
50 ALBINSSON
Isotope Ref. Symbol Value (b) Method Comments
6
4
4
38
46
46
38
46
4
38
46
38
4
43
46
38
46
RI
RI
RI
RI
I
I
RI
I
RI
RI
I
RI
RI
RI
I
270
276
24
37.80
10
100
17.07
17
0.7
4.916
2
0.219
0.31
0.20
0.2
13.59
13
70
10
eval
eval
act
eval
eval
0.02 act
0.09 act
eval
Au (1550)
Au (1551). RI/a measured o
Au (1551). RI/o measured
Au (1551). RI/o measured , , . 137 m 0 2.5 min Ba
Au (1551). RI/a measured o
Measured S = 0.649 ± 0.04 o
S (Au) = 17.7. RI = 0.35
138„ RECOMMENDED VALUE RI » 0.3 FOR Ba
139 La 38 RI 15 63 eval
6 RI 11 8 ± 1.2 act Au (1550)
INFINITE-DILUTION RESONANCE INTEGRALS 51
Isotope Ref. Symbol Value (b) Method Comments
1 3 9 L a 45 I 7 5 + 0 8 act Au (1514). RI = 12 (cont.)
1 RI 10 7 pile ose Au (1558)
83 RI 14 1 ± 0 9 calc
4 RI 11 5 + 0 8 act Au (1551). RI/a measured o
29 RI 10 8 ± 1 1 act Au
154 RI 11 2 + 0 6 act
84 RI 12 1 + 1 0 ab s
46 I 11 rec
140 La 38 RI 70 68 eval
154 RI 69 + 4 act
46 I 70 rec
RECOMMENDED VALUES RI = 11 FOR 1 3 9 L a 140 RI = 70 FOR La
Ce 2 RI 3 7 + 1 7 react Li (32.2). Reactor meas-urement, not corrected for deviation from 1/E
140„ Ce 38 RI 0 507 eval
85 RI 0 49 + 0 05 act Au (1558)
6 RI 0 48 + 0 05 act Au (1550)
86 RI 0 49 + 0 05 act Au (1558)
43 I 0 23 ± 0 01 act Measured S = 0.476 ± 0.0( o S (Au) = 17.7. RI = 0.48 0
4 RI 0 44 + 0 03 act Au (1551). RI/o measured o
46 I 0 24 rec
52 ALBINSSON
Isotope Ref. Symbol Value (b) Method Comments
1 4 1 C e 38 RI 28 73 eval
1 4 2 C e 38 RI 1 514 eval
85 RI 1 6 + 0 2 act Au (1558)
43 I 0 81 + 0 10 act Measured S = 0.865 ± 0.00 0 S (Au) = 17.7. RI = 1.3 o
4 RI 1 20 act Au (1551). RI/o measured o
46 I 1 0 rec
1 4 3 C e 38 RI 42 66 eval
U 4 C e 38 RI 2 602 eval
87 RI 2 62 + 0 26 act Co (75)
46 I 2 2 rec
RECOMMENDED VALUES RX » 0.49 FOR 1 4°Ce 142 RI = 1.40 FOR Ce
1 4 1 P r 38 RI 17 52 eval
6 RI 14 1 + 0.2 act Au (1550)
4 RI 20 7 + 3.0 act Au (1551). RI/a measured 0
1 RI 12 1 act Au (1558)
83 RI 18 calc
46 RI 13 rec
1 4 2 P r 38 RI 143 8 eval
1 4 3 P r 38 RI 190 0 eval
88 RI 190 + 25 Co std
46 I 150 rec
INFINITE-DILUTION RESONANCE INTEGRALS 53
Isotope Ref. Symbol Value (b) Method Comments
38 RI 445.1 eval
141„ RECOMMENDED VALUE RI = 14 FOR Pr
Nd 89 RI 43 ± 4 react Au (1558)
112 RI 40 + 6 react B std
1 4 2Nd 38 RI 8 84 eval
46 I 0 2 rec
U 3 N d 38 RI 64 47 eval
10 I <50 pile ose Au (1513)
46 I 60 rec
U 4 N d 38 RI 7 64 eval
46 I 3 6 rec
U 5 N d 38 RI 271 3 eval
10 I 130 + 15 pile ose Au (1513). RI = 154
46 I 250 rec
1 4 6Nd 38 RI 2 36 eval
6 RI 3 2 + 0 5 act Au (1550)
85 RI 3 0 + 0 3 act Au (1558)
17 RI 2 60 + 0 18 calc
4 RI 2 85 + 0 18 act Au (1551). RI/o measured 0
46 I 2 0 rec
U 7 N d 38 RI 649 8 eval
54 ALBINSSON
Isotope Ref. Symbol Value (b) Method Comments
1 4 8 N d 38 RI 14.01 eval
85 RI 14 ± 2 act Au (1558)
17 RI 13.8 ± 1.0 calc
4 RI 14.0 ± 0.7 act Au (1551). RI/o measured 0
90 RI 18.7 ± 0.5 act Au (1558)
46 I 20 rec
15tW 38 RI 2.59 eval
85 RI 14 + 4 act Au (1558)
17 RI 12.6 ± 0.2 calc
4 RI 20.5 ± 0.7 act Au (1551). RI/o measured 0
46 I 14 rec
RECOMMEh IDED VA LUES RI RI RI
- 2.8 FOR 1 4 6Nd 17 FOR 1 4 8Nd 14 FOR 1 5°Nd
Pm 38 RI 2 178 eval
44 I 2 400 ± 300 eval
91 I 1 274 ± 66 act RI = 1 320. 5.4 day 1 4 8 P m
92 RI 1 700 ± 250 act 5.39 day 1 4 8 P m m
92 RI 1 520 ± 230 act 40.6 day 1 4 8 P m m
92 RI 3 220 act Total activation RI
93 I 2 280 ± 200 t of f a = 198 + 8. RI = 2 400 0
94 I 2 192 ± 100 t of f a = 200 ± 7. RI = 2 300 0
INFINITE-DILUTION RESONANCE INTEGRALS 55
Isotope Ref. S y m b o l Value (b) M e t h o d C o m m e n t s
147pm 95 RI 720 + 200 mass spec 40.6 day 148 m Pm (cont. )
95 RI 800 ± 250 mass spec 5.39 day 148„ m Pm
46 I 1 050 rec 40.6 day 148- m Pm
46 I 1 150 rec 5.39 day 148„ m Pm
148_ Pm 38 RI 43 980 eval 5.39 day 148 Pm
93 I 3 600 + 2 400- t of f a = 0 10 600
38 RI 31 990 eval 40.6 day 148 m Pm
1 4 9 P m 38 RI 927.7 eval
1 5 1 P m 38 RI 1 210 eval
RECOMMENDED VALUES RI = 1 300 FOR 1 4 7 P m (5.39 day 1 4 8 P m m )
RI = 1 200 FOR U 7 F m (40.6 day 1 4 8 P m m )
Sm 2 RI 1 790 + 270 react Li (32.2). Reactor meas-urement, not corrected for deviation from 1/E
1 4 7 S m 38 RI 566 2 eval
44 I 646 + 60 eval
95 RI 640 + 200 mass spec Co std
107 RI 646 + 60 mass spec
103 RI 714 ± 50 t of f
46 I 600 rec
1 4 8 S m 38 RI 18 51 eval
103 44
RI 27 ± 14 mass spec
1 4 9 S m 38 RI 3 705 eval
56 ALBINSSON
Isotope Ref. Symbol Value (b) Method Comments
96
38
97
103
46
38
111
46
38
98
99
100
12
6
4
46
108
38
38
98
4
RI 4 400
RI
RI
RI
I
RI
RI
257.1
227
310
240
RI 2 178
RI 3 300
I 3 100
RI 3 240
RI 2 644
I 3 050
RI 3 200
I 2 850
RI 2 530
RI 3 270
I 3 000
RI 2 920
RI 1 137
± 23
± 15
± 700
± 604
± 200
± 100
± 300
± 150
± 170
38.21
31 ± 6
23.0 ± 1.0
mass spec Co (72.3)
Co (75)
eval
act
t of f
rec
eval
t of f
rec
eval
t of f
act Au std. RI = 3 150
act Au (1540)
pile ose Au (1510). RI = 2 950
act Au (1550)
act Au (1551). RI/a measured o
rec
act Au (1558)
eval
eval
t of f
act Au (1551). RI/o measured o
INFINITE-DILUTION RESONANCE INTEGRALS 57
Isotope Ref. Symbol Value (b) Method Comments
38 RI 331.9 eval
RECOMMENDED VALUES RI = RI = RI = RI =
660 FOR U 7 S m
270 FOR 1 5°Sm 2 900 FOR 1 5 2 S m
154 27 FOR Sm
15 Eu 98 RI 3 265 + 310 t of f
108 RI 3 420 act Au (1558)
101 7
RI 1 400 + 40 n i u 152_ m 9.3 hrs Eu
4 RI 3 550 ± 160 act Au (1551). RI/o q measured 12 year 1 5 2 E u 8
4 RI 2 580 ± 130 act Au (1551). RI/a measured 9.3 hour 1 5 2 E u m °
102 RI 11 410 ± 450 act 12 year 1 5 2 E u 8
102 RI 3 847 ± 270 act 9.3 h 1 5 2 E u m
153 Eu 98 RI 1 632 ± 195 t of f
12 I 1 280 ± 100 pile ose Au (1513). RI - 1 430
4 RI 1 520 ± 80 act Au (1551). RI/o measured 0
102 RI 3 887 ± 62 act
154,, Eu 38 RI 1 240 eval
155 Eu 38 RI 1 223 eval
i S ö , , Eu 38 RI 1 258 eval
15 Eu 38 RI 826.4 eval
RECOMMENDED VALUES RI = RI o RI =
151, 152_ m. 2 600 FOR Eu (9.3 hour Eu ) 7 000 FOR 1 5 1 E u (12 year 1 5 2 E u 8 ) 1 500 FOR 1 5 3EU
58 ALBINSSON
Isotope Ref. Symbol Value (b) Method Comments
Gd 2 RI 67 + 8 react Li (32.2). Reactor meas-
urement, not corrected for deviation from 1/E
104 RI 393 calc
1 5 2Gd 6 RI 3 000 + 300 act Au (1550)
1 5*Gd 98 RI 177 + 17 t of f
107 RI 335 + 50 mass spec
105 RI 530 mass spec
46 I 250 rec
1 5 5 G d 38 RI 1 563 eval
104 RI 1 720 calc
1 5 6 G d 38 RI 90. 0 eval
107 RI 100 + 30 mass spec
104 RI 95 calc
46 I 90 rec
105 RI 23 mass spec
1 5 7 G d 38 RI 3 410 eval
104 RI 711 calc
1 5 8 G d 38 RI 97 9 eval
98 RI 60 5 + 6.0 t of f
104 RI 72 calc
6 RI 84 + 20 act Au (1550)
INFINITE-DILUTION RESONANCE INTEGRALS 59
Isotope Reí. Symbol Value (b) Method Comments
1 5 8 G d (cont . )
1 5 9 G d
160, Gd
38
38
98
104
46
RI
RI
RI
RI
RI
I
116
186.7
1.445
6.9
4.8
7.0
Au (1551). RI/a measured
1.0
eval
eval
t of f
calc
rec
RECOMMENDED VALUES RI = 300 FOR 1 5 4 G d 158
RI = 80 FOR Gd
1 5 9 T b 38 RI 376.4 eval
49 I 343 ± 35 act I / o = 15 6 ± 0.8 I / o 0 S o (Au) = 17.7. RI = 365
6 RI 365 ± 40 act Au (1550)
85 RI 450 ± 50 act Au (1558)
4 RI 403 ± 20 act Au (1551) RI/o measured o
108 RI 780 act Au (1558)
46 I 420 rec
1 6 0 T b 38 RI 1 140 eval
1 6 1 T b 38 RI 655.9 eval
RE COMME t-IDED VA jUE RI = 400 FOR Tb
Dy 106 RI 1 840 ± 180 react
160_ Dy 106 RI 1 160 ± 130 react
38 RI 1 160 eval
46 I 1 200 rec
60 ALBINSSON
Isotope Ref. Symbol Value (b) Method Comments
107
38
107
46
106
38
46
106
107
38
106
107
46
38
106
7
4
RI
RI
RI
I
RI
RI
I
RI
RI
RI
RI
RI 1
I 1
RI
RI
RI
RI
RECOMMENDED VALUES RI =
RI =
RI =
RI =
RI =
915 + 90 mass spec
670 eval
060 + 80 mass spec
200 rec
670 + 167 react
550 eval
800 rec
324 ± 400 react
170 ± 80 mass spec
650 eval
962 ± 176 react
380 ± 100 mass spec
900 rec
795 eval
377 ± 34 react
332 ± 10 rec
780 ± 60 act
1 200 FOR 160„ Dy
1 300 FOR 161 Dy
2 600 FOR 16 2_ Dy
1 900 FOR Dy
800 FOR 164_ Dy
Au (1551). RI/a measured
INFINITE-DILUTION RESONANCE INTEGRALS 6 1
Isotope Ref. S y m b o l Value (b) M e t h o d C o m m e n t s
165 Ho 38 RI 678 eval
108 RX 628 act Au (1558)
4 RI 620 + 90 act Au (1551). RI/o measured o
6 RI 710 + 30 act Au (1550)
46 I 700 rec
RECOMMEN DED VALUE RI = 660
1 6 6 E r 98 RI 122 + 13 t of f
107 RI 57 ± 16 mass spec
1 6 7 E r 98 RI 3 177 ± 325 t of f
1 6 8 E r 98 RI 35 5 ± 7.0 t of f
1 7 0 E r 98 RI 44 ± 7 t of f
108 RI 32 2 act Au (1558)
4 RI 25 2 ± 3.0 act Au (1551). RI/a measured 0
RECOMMENDED VALUE RI = 35 FOR 1 7 ° E r
1 6 9 T m 6 RI 1 550 + 200 act Au (1550)
4 RI 1 450 + 65 act Au (1551). RI/a measured 0
19 RI 2 240 + 130 act Co (69.9)
RECOMMENDED VALUE RI = 1 700
Yb 109 RI 177 + 24 calc
168 Yb 109 RI 30 950 calc
19 RI 21 000 ± 4 200 act Co (69.9)
98 RI 31 900 + 4 500 t of f
62 ALBINSSON
Isotope Ref. Symbol Value (b) Method Comments
168yb (cont. )
6
4
RI
RI
14
23
700
000
+
+
1
5
900
000
act
act
Au (1550)
Au (1551). RI/o measured o
49 I 35 706 + 17 139 act I/o = 6.49 ± 0.13 0 S (Au) = 17.7. RI = 37 00 o
1 7 0 Y b 109 RI 326 calc
98 RI 211 + 20 t of f
107 RI 270 + 30 mass spec
1 7 1 Y b 109 RI 313 calc
98 RI 344 + 39 t of f
107 RI 332 + 30 mass spec
1 7 2 Y b 109 RI 23.5 calc
98 RI 26.2 + 6. 0 t of f
107 RI 25 + 7 mass spec
1 7 3 Y b 109 RI 394 calc
107 RI 410 + 40 mass spec
1 7 4 Y b 109 RI 33.8 calc
19 RI 68.6 ± 7 2 act Co (69.9)
98 RI 26 + 6 t of f
6 RI 30 + 3 act Au (1550)
4 RI 37.6 + 1 .5 act Au (1551). RI/o measured 0
1 7 6 Y b 109 RI 7.6 calc
INFINITE-DILUTION RESONANCE INTEGRALS 63
Isotope Ref. Symbol Value (b) Method Comments
1 7 6 Y b
( c o n t . ) 98
4
RI
RI/a 2.4
2
0.2
t of f
Au (1551)
RECOMMENDED VALUES RI = 25 000 FOR 1 6 8 Y b
RI = 270 FOR 1 7°Yb
RI =
RI =
RI =
RI =
330 FOR 1 7 1 Y b 172
25 FOR Yb
31 FOR 1 7 4 Y b
7 FOR 1 7 6 Y b Lu
175 Lu
176. Lu
112
101 7
98
4
4
7
RI 720
RI 405
RI 1 158
RI 550
RI 1 060
RI 2 400
± 70
± 15
± 280
± 75
± 45
± 250
B std
t of f
Au (1551). RI/o measured o
Au (1551). RI/o measured o
RECOMMENDED VALUE RI = 600 FOR 1 7 5 L u
Hf 1 RI 1 160 pile ose Au (1558)
2 RI 1 470 + 200 react Li (32.2). Reactor meas-
urement, not corrected
for deviation from 1/E
36 I 2 850 + 350 pile ose Au (1510) RI = 2 280
112 RI 2 800 + 600 react B s td
67 I 2 080 + 50 pile ose Au (1540) RI = 2 130
65 RI 2 130 + 60 react Au (1558)
1 RI 1 750 act Au (1558)
113 RI 2 300 + 60 react
64 ALBINSSON
Isotope Ref. Symbol Value (b) Method Comments
Hf (cont. )
114 RI 2 280 + 180 ab s
1 7 4 H f 4 RI 300 + 200 act Au (1551). RI¡a measured o
1 7 6 H f 113 RI 880 + 40 react
65 RI 400 + 20 react Au (1558)
1 7 7 H f 113 RI 7 000 + 240 react
1 7 8 H f 113 RI 1 710 + 50 react
1 7 9 H f 113 RI 595 + 55 react
4 RI 3.9 + 0.2 act Au (1551). RI/o measured
5 . 5 h r 1 8 0 H f m °
1 8 0 H f 113
1
RI
RI
52
21.6
+ 7 react
act Au (1558)
6 RI 32 + 3 act Au (1550)
4 RI 32.5 + 1.5 act Au (1551). RI/o measured 0
37 I 24.3 + 1.6 act Measured S = 2.17 ± 0.09 o
S (Au) = 17.7. RI = 30 o
REC0MME1 IDED VA LUES RI
RI
= 2 100
28
FOR
FOR
Hf
1 8 0 H f
1 8 1 T a 2 RI 474 + 62 react Li (32.2). Reactor meas-
urement, not corrected
for deviation from 1/E
12 I 1 100 + 400 pile ose Au (1513). RI =1 220
1 RI 578 pile ose Au (1558)
6 RI 750 ± 50 act Au (1550)
115 I 690 + 25 pile ose Au (1550). RI = 700
INFINITE-DILUTION RESONANCE INTEGRALS 65
Isotope Ref. Symbol Value (b) Method Comments
116
108
4
71
155
RI
RI
RI
RI
RI
690
800
715
6 6 0
943
± 40
± 70
Au (1565)
Au (1558)
Au (1551). RI/a measured o
50 t of f
RECOMMENDED VALUE RI = 700 FOR Ta 181,
w 2 RI 290 + 35 react Li (32.2). Reactor meas-
urement, not corrected
for deviation from 1/E
12 I 330 + 60 pile ose Au (1513). RI = 340
112 RI 170 + 20 react B std
119 RI 372 eval
35 I 325 + 20 calc RI = 335
117 RI 367 + 33 react Au (1558)
118 RI 360 + 70 react Au (1558)
71 RI 373 rec
57 RI 338 react RI calculated as a func-
tion of plate thickness
1 8 2 w 98
119
RI
RI
592
591
+ 60 t of f
eval
1 8 3 w 98
119
RI
RI
371
387
+ 42 t of f
eval
m w 98 RI 14.1 + 1.5 t of f
66 ALBINSSON
Isotope Kef. Symbol Value (b) Method Comments
1 8 4 w 119 RI 13. 5 eval (cont.)
118 RI 8. 4 + 2. 0 react Au (1558)
120 RI 14. 9 + 1. 6 act
4 RI 22 0 + 1 0 act Au (1551). RI/a measured 0
1 8 6 w 98 RI 486 + 50 t of f
119 RI 551 eval
108 RI 345 act Au (1558)
120 7
RI 441 + 22 act
118 RI 490 + 100 react Au (1558)
11 I 476 ± 50 act Au (1490). RI = 560
1 RI 390 act Au (1558)
121 RI 450 + 36 act
122 RI 318 act
4 RI 420 + 45 act Au (1551). RI/o measured 0
40 RI 380 + 84 act Au (1551). E = 0.2 eV c
1 8 7w 122 RI 2 760 act
RECOMMENDED VALUES RI = 370 FOR W
RI » 15 FOR 1 8 4 W
RI = 420 FOR 1 8 6 W
1
123
124
124
RI 1 100
RI 1 726 ± 68
RI 1 650 ± 90
RI 1 753 * 90
calc
capt
Au(1558)
Calculated from resonance
parameters
Moxon-Rae detector
INFINITE-DILUTION RESONANCE INTEGRALS 67
Isotope Kef. Symbol Value (b) Method Comments
ISSRe (cont.)
125 RI 1 828 * 120 act
4 RI 1 250 act Au(1551). RI/a measured o
1 8 7 R e 123 RI 308 ± 20 calc Calculated from resonance
parameters
125 RI 312 ± 22 act
1 RI 288 act
4 RI 315 ± 35 act Au(1551). RI/o measured o
RECOMMENDED VALUES RI 1700 FOR 1 8 \ e
RI = 310 FOR 1 8 7 R e
Os 2 RI 180 ± 20 react Li(32.2) .
ment, not
Reactor measure
corrected for deviation f r o m 1 / E .
184 Os 4 RI 600 ± 120 act Au(1551). RI/a measured o
1 8 9 0 s 4 RI 0 013 act Au(1551). RI/o measured o
1 9 0 0 s 4 RI 39 ± 18 act Au(1551). RI/o measured 191 E ° 15 day l s l O S g
4 RI 29 ± 15 act Au(1551). RI/o measured , 191._m° 13 hour OS
192. Os 4 RI 3 .6 ± 1.0 act Au(1551). RI/o measured o
Ir 2 RI 2 000 * 490 react Li(32.2).
ment, not
deviation
Reactor measure-
corrected for
from 1/E.
1 9 1 l r 1 RI 3 500 act Au(1558)
22 RI 4 800 ± 240 act Co(69.9)
59 I 4 074 ± 28 RI = 4500 74 d a y 1 9 2 I r 8
59 I 940 ± 160 RI = 1200 i / • 192- m 1,4 m m Ir
68 ALBINSSON
Isotope Ref. Symbol Value (b) Method Comments
191Ir
( c o n t . )
193 I r
RI 3 400
RI 1 370
RI 1 390
± 400 Au(1551). Rl/° 0 measured
74 day 1 9 2 I r 8
RECOMMENDED VALUE RI = 4000 FOR Ir
± 200
191 t
Au(1558)
Au(1551). RI/a measured
Pt
1 9 6 . Pt
198. Pt
1
12
45
4
108
45
4
RI
I
RI
81.5
185
8 ± 2
5.6 ± 0.6
55.3
54 ± 6
48 ± 4
pile ose Au(1558)
pile ose Au(1513). RI = 200
act Au(1514). RI = 12
act Au(1551). RI/° 0 measured
act Au(1558)
act Au(1514). RI = 55
act Au(1551). RI/o measured
198„ RECOMMENDED VALUE RI = 53 FOR Pt
197A Au 1 RI 1 558 act
71 RI 1 550 rec Absorption. Cd cutoff =
40 RI 1 551 ± 20 act
156 I 1 510 ± 40 act RI = 1 553
RECOMMENDED VALUE RI = 1 550
Hg 1 RI 31 pile ose Au(1558)
2 RI 72.4 ± 8.0 react Li(32.2). Reactor measure-
ment, not corrected for
deviation from 1/E.
112 RI 73 ± 5 react B std
196 u Hg 4 RI 1 230 ± 130 act Au(1551). RI/o o measured
65'hour 1 9 7 H g g
INFINITE-DILUTION RESONANCE INTEGRALS 69
isotope Ref. Symbol Value (b) Method Comments
1 9 6 H g
( c o n t . )
198. Hg
202 Hg
204. Hg
1 2 6
1 2 6
30
1 2 6
22
4
RI
RI
RI
RI
I
RI
RI
RI
RI
413
47
15
± 5
58.9 ± 2.4 act
2.00 ± 0.15 act
2.1 ± 0.5 act
4.99 ± 0.19 act
3.94 ± 0.08 act
3.98 ± 0.25 act
0.85 ± 0.06 act
Au(1550). Co(75)
65 hour 1 9 7 H g g
Au(1551). r I / O q measured -, 197„ m 24 hour Hg
Au(1550). Co(75)
24 hour 1 9 7 H g m
Au(1551)-. RI/o measured o
Au(1490). RI - 4.1
Au(1550). Co(75)
Co(69.9)
Au(1551). R I/O q measured
Au(1551). RI/a measured
RECOMMENDED VALUES RI = 73 FOR Hg
RI = 4.3 FOR H
TI 157 RI 12 ± 2 ab s Neutron slowing-down technique
2 0 3 t 1 19 RI 349 ± 17 act Co(69.9)
1 RI 129 act Au(1558)
157 RI 40 ± 5 ab s Neutron slowing-down technique
205 t 1 1 RI 0 5 act Au(1558)
157 RI 0 7 ± 0.1 ab s Neutron slowing-down technique
Pb 1 RI 0 094 pile ose Au(1558)
12 I 0 05 ± 0.03 pile ose Au(1513). RI = 0.12
70 ALBINSSON
Isotope Ref. Symbol Value (b) Method Comments
2 0 9 B i 1 RI 0 .53 pile ose Au(1558)
36 I 0 .050 ± 0 .012 pile ose Au(1510). RI = 0.062
2 1 0 B i 127 RI 0 .20 ± 0 .02 act Mn(13.1)
2 3 0 T h 128 RI 996 ± 40 act Co(74)
129 RI 1 020 ± 30 act
158 RI 1 035 ± 85 t of f
2 3 2 T h 6 RI 88 ± 3 act Au(1550)
4 RI 72. 6 ± 5. 0 act Au(1551). RI/a measured 0
13 RI 89. 8 ± 4. 0 act
13 RI 93 ± 6 ab s
2 RI 61. 8 ± 12. 0 react Li(32.2). Reactor measure-
ment, not corrected for
deviation from 1/E
67 I 84 ± 4 pile ose Au(1540). RI = 85
130 RI 81 2 ± 3 4 react Au(1579)
1 RI 71 4 pile ose Au(1558)
131 RI 83 3 ± 3 0 act Au(1555)
132 RI 86 t 6 calc
44 I 82 eval RI = 85
133 RI 82 7 ± 1 8 act Au(1561 )
INFINITE-DILUTION RESONANCE INTEGRALS 71
Isotope Kef. Symbol Value (b) Method Comments
232-j^ (cont.)
134 RI 79 ± 4 calc RI calculated from reso-
nance parameters
135 RI 84 ± 1 act Au (1565)
136 I 83 ± 6 act Au (1510). RI = 84.4
142 RI 82.5 ± 3.0 act Au (1555)
71 RI 84 rec
2 3 3 i h 135 RI 386 ± 100 act Au (1565)
RECOMMEI IDED VA LUE RI = 82 FOR 232 Th
2 3 1 P a 71 RI 480 rec
174 RI 11 820 ab s 237 N (945) for capture P
2 3 3 P a 137 RI 470 ± 90 act Co (75). 1.2 min 2 3 4 P a m
137 RI 460 ± 100 act Co (75). 6.7 hrs 2 3 4 P m m
137 RI 930 ± 135 act Co (75)
138 RI 920 ± 90 act Co (75)
71 RI 820 rec
159 RI 842 ± 35 act Co (72.0)
44 I 860 eval RI = 875
160 901 ± 45 t of f RI = 920
RECOMMENDED VALUE RI = 880 FOR 2 3 3 P a
U 2 RI 224 ± 40 react Li (32.2). Reactor meas-
urement, not corrected
for deviation from 1/E
232 U 139 RI 280 mass spec Capture. Co (75)
7 2 ALBINSSON
Isotope Ref. Symbol Value (b) Method Comments
71
71
71
44
140
141
141
142
161
143
144
145
162
163
164
71
140
146
143
71
RI
RI
RI
RI
RI
RI
RI
RI
RI
RI
RI
RI
RI
RI
RI
RI
RI
RI
RI
RI
540
320
2 2 0
750
837
743
743
792
771
821
838
830
765
780
850
780
381
899
965
917
± 20
± 40
± 36
± 24
± 27
t 49
± 59
± 40
± 60
± 40
± 90
± 45
± 50
± 65
eval
eval
Absorption
Fission
Capture
Fission
Fission. Co (75)
Fission. In std Cd ratio,
fiss prod gammas.
Fission. Au (1535). Cd ratio
fiss counter detect
Fission. Au (1555). Cd ratio
fiss counter detect
Fission. Co std
Fission. Au (1555)
Fission
• . , • , 137„ Fission. Analysis of Cs
Fission. Pulsed n source
Fission
Fission
Fission
Absorption
Absorption
Absorption
Absorption
INFINITE-DILUTION RESONANCE INTEGRALS 73
Isotope Ref. Symbol Value (b) Method Comments
161
163
71
145
140
71
44
166
1
161
167
164
145
163
168
44
11
141
141
141
RI
RI
RI
RI
RI
RI
i
RI
RI
RI
RI
RI
RI
RI
RI
RI
RI
RI
RI
RI
135
137
137
146
144
665
600
700
271
275
278
274
292
280
275
270
263
265
269
291
± 1 6
± 9
± 11
± 14
± 11
± 4
± 1 0
± 1 2
± 14
act Capture. Co std
eval Capture
rec Capture
mass spec Capture
mass spec Capture
rec Absorption
rec Capture. RI = 645
rec Capture
act Fission
Fission. Co std
Fission. Cd and B filters
Fission
137
Fission. Analysis of Cs
eval Fission
Fission. Pulsed n source
rec Fission
Fission. Cd ratio, tot
fiss prod gammas
Fission. Au (1535). Cd
ratio, fiss counter detect
Fission. Au (1535). Cd
ratio, tot fiss prod
gammas
Fission. In std Cd ratio,
tot fiss prod gammas
74 ALBINSSON
Isotope Ref. Symbol Value (b) Method Comments
235JJ 71 RI 280 rec Fission (corn.)
175 RI 300 + 50 rec Fission
175 RI 450 + 100 rec Absorption
71 RI 420 rec Absorption
161 RI 136 + 8 act Capture. Co std
169 RI 143 + 7 mass spec Capture
163 RI 140 + 8 eval Capture
145 RI 150 + 6 mass spec Capture
168 RI 140 + 5 Capture. Pulsed n source
71 RI 140 rec Capture
175 RI 150 + 50 rec Capture
2 3 6 U 170 RI 417 + 25 act Capture
171 RI 350 ± 25 calc Capture
172 RI 397 ± 34 act Capture
71 RI 320 rec
44 RI 415 eval
173 RI 419 ± 25 Capture. Au (1550)
238 u 36 I 285 + 25 pile ose Absorption. RI = 286
6 RI 267 ± 5 act Absorption
44 I 269 rec Absorption. RI = 270
11 I 280 ± 10 act Absorption. RI = 281
INFINITE-DILUTION RESONANCE INTEGRALS 75
Isotope Ref. Symbol Value (b) Method Cômments
2 3 8 ö
( c o n t . ) 1 RI 281 act Absorption
71 RI 278 rec
175 RI 280 ± 15 rec Capture
176 RI 279 ± 20 t of f Capture
RI = 320 FOR 232 FISSION
RI = 220 FOR 232 CAPTURE
RI » 540 FOR 232„ ABSORPTION
RI = 790 FOR 233„ FISSION
RI = 140 FOR 2 3 3 u CAPTURE
RI = 930 FOR 2 3 3 u ABSORPTION
RI = 675 FOR 2 3 4 u ABSORPTION
RI = 275 FOR 2 3 5 U FISSION
RI = 140 FOR 235 CAPTURE
RI = 415 FOR 2 3 5 U ABSORPTION
RI = 410 FOR 2 3 6 U CAPTURE
RI s 280 FOR 2 3 8 u ABSORPTION
Np 173 RI 850 Capture
44 I 870 rec Capture. RI = 950
36 I 870 ± 130 pile ose Capture. R I = 950
Au (1510).
44 I 6 rec Fission. RI = 6
Np 44 I 510 rec Fission. RI = 1 500
173 RI 1 500 ± 500 Fission
44 I 10 rec Capture. RI = 12
237 RECOMMENDED VALUES RI = 920 FOR Np CAPTURE
RI » 1 500 FOR Np FISSION
76 ALBINSSON
Isotope Ref. Symbol Value (b) Method Comments
238 Fission. Measured Pu 166 RI 25 rec Fission. Measured
44 I 16.7 eval Fission. RI = 23.9
189 RI 26 ± 5 act Fission
177 RI 164 + 15 t of f Absorption
44 RI 164 eval Absorption
173 RI 169 eval Absorption
166 RL 150 rec Capture
178 RI 3420 act Absorption
2 3 9 P u 167 RI 301 + 10 Fission. Cd and B filters
179 RI 327 + 22 fission, Cd ratio, tot fiss
prod gammas
141 RI 289 + 9 Fission. Au (1535). Cd ratio
fiss count detect
164 RI 330 + 30 Fission
146 RI 310 + 20 rec Fission
163 RI 301 eval Fission
44 RI 300 + 10 eval Fission
180 RI 366 + 26 Fission
181 RI 300 + 10 Fission 7
141 RI 360 + 18 Fission. In std Cd ratio,
tot fiss prod gammas
71 RI 288 rec Fission
190 RI 230 + 5 t of f Fission. E = 1 eV. Not c evaluated for l o w e r cutoff
INFINITE-DILUTION RESONANCE INTEGRALS 77
Isotope Ref. Symbol Value (b) Method Comments
2 3 9 p u
(cont.) 71
71
RI
RI
472
134
rec
rec
Absorption
Capture
190 RI 188 + 17 t of f Capture. E^ = 1 eV
240„ Pu 44 RI 8220 rec Absorption
36 I 11 300 + 1 000 pile ose Absorption. RI = 11 500
182 RI 10 000 + 2 800 pile ose Absorption
74 I 8 780 + 550 act Absorption. RI » 8850
183 RI 8 607 + 700 react Absorption
184 RI 11 000 + 4 000 react Absorption
185 I 8 270 + 500 react Absorption. Au (1513)
RI = 8420
186 RI 9 000 + 3 000 act Absorption
187 RI 8 850 + 800 act Activation
71 RI 8 280 rec Absorption
175 RI 9 000 + 1 500 rec Capture
166 RI 8 000 rec Capture
192 RI 8 650 ab s Absorption
241 d Pu 179 RI 581 + 33 Fission. Au (1555).
Cd ratio, tot fiss prod
gammas
141 RI 532 ± 16 Fission. Au (1535). Cd rat
tot fiss prod gammas
71 RI 573 rec Fission
164 RI 550 + 40 Fission
166 RI 545 rec Fission
78 ALBINSSON
Isotope Ref. Symbol Value (b) Method Comments
241_ Pu 145 RI 569 + 37 Fission. E = 3.0 eV (cont.) c
44 RI 580 + 40 eval Fission
163 RI 617 Fission
71 RI 712 rec Absorption
71 RI 139 rec Capture
145 RI 162 ± 8 rec Capture. E c = 0.2 eV
166 RI 260 rec Capture
242 Pu 178 RI 1 310 act Absorption. Co (48.6)
U-238 (282)
188 RI 1 280 + 60 act Absorption. Co (75)
71 RI 1 100 rec Absorption
166 RI 1 150 rec Capture
175 RI 1 300 + 200 rec Capture
191 RI 1 055 + 170 t of f Capture
193 RI 1 110 + 60 t of f Absorption
TOO RECOMMENDED VALUES RI = 25 FOR Pu FISSION
RI = 160 FOR 2 3 8 P u ABSORPTION
RI = 310 FOR 2 3 9 P u FISSION
RI = 140 FOR 2 3 9 P u CAPTURE
RI = 450 FOR 2 3 9 P u ABSORPTION
240 RI = 9 000 FOR Pu ABSORPTION
RI = 570 FOR 2 4 1 P u FISSION
RI = 140 FOR 2 A 1 P u CAPTURE
RI = 710 FOR 2 4 1 P u ABSORPTION
RI = 1 200 FOR 2 4 2 P u ABSORPTION
INFINITE-DILUTION RESONANCE INTEGRALS 79
Isotope Ref. Symbol Value (b) Method Comments
2 4 1 A m 166 RI 8.5 rec Fission
194 RI 21 + 2 act Fission
164 RI 21 + 2 act Fission
65 RI 900 act 242 Activation. (16 hour Ai
166 RI 1 600 rec Capture
194 RI 2 100 + 200 act Capture. Si ( Am )
194 RI 300 + 30 act Capture. ,242a m. ( Am )
242. Am 194 RI <300 act Fission
195 RX 1 570 t of f Fission
196 RI 1 570 + 10 t of f Fission
243, Am 178 RI 2 340 + 50 act Absorption. Co (48.6)
U-238 (282)
166 RI 1 400 rec Capture
191 RI 1 480 + 135 t of f Capture
194 RI 2 300 + 200 act Absorption
241 RECOMMENDED VALUE RI = 20 FOR Am FISSION
243 Cm 199 RI 1 860 + 400 act Fission
197 RI 2 345 + 470 t of f Absorption
2 4 4 C m 198 RI 19 + 1 act Fission
199 RI 13.0 + 2.5 act Fission
166 RI 650 rec Capture
199 RI 650 + 50 act Capture
197 RI 550 + 40 t of f Absorption
80 ALBINSSON
Isotope Ref. S y m b o l Value (b) M e t h o d C o m m e n t s
2 4 5 C m 198 RI 900 + 50 act Fission
199 RI 770 + 150 act Fission
200 RI 1 140 + 100 Fission
201 RI 105 Capture
199 RI 100 + 20 Capture
197 RI 810 + 180 t of f Absorption
2 4 6 C m 198 RI 11.0 + 0.5 act Fission
199 RI (low) act Fission
199 RI 120 + 25 act Capture
201 RI 120 Capture
204 RI 260 Absorption
2 4 7 C m 198 RI 800 + 50 act Fission
199 RI 950 + 190 act Fission
200 RI 1 060 + 110 Fission
199 RI 810 + 400 act Capture
2 4 8 C m 198 RI 13.5 + 0.8 act Fission
199 RI 275 + 75 act Capture
202 RI 350 ± 40 act Capture. Mn (13.1)
2 4 9 B k 204 RI 1 240 Absorption. Co (75)
2 4 9 C f 198 RI 2 200 + 70 act Fission
200 RI 2 940 ± 280 Fission
204 RI 2 750 Absorption
INFINITE-DILUTION RESONANCE INTEGRALS 81
Isotope Ref. Symbol Value (b) Method C o m m e n t s
2 5 0 c f 204 RI 5 300 Capture
205 RI 4 975 Absorption
2 5 1 C f 205 RI 1 370 Fission
204 RI 980 Capture
205 RI 2 100 Absorption
2 5 2 C f 205 RI 12 Fission
203 RI 43.5 ± 2.0 Capture
204 RI 42 Capture
205 RI 58 Absorption
2 5 3 C f 205 RI 2 235 Fission
205 RI 2 250 Absorption
2 5 4 C f 205 RI 100 Absorption
2 5 4 E S 206 RI 2 300 + 90 Fission. Cf std
R E F E R E N C E S T O T A B L E
[ 1 ] MACKLIN, R. L. . POMERANCE, H . S . , "Resonance capture integrals", 1st Int. Conf. Peace fu l Uses At. Energy (Proc. Conf. Geneva , 1955) 5, UN, New York (1956) 96 .
[ 2 ] KLIMENTOV, V. B. , GRIAZEV, V . M . , J. Nucl . Energy 9 (1957) 507 . [ 3 ] BLASER, W . , WYTTENBACH, A . , BAERTSCHI, P . , J. Inorg. Nucl . C h e m . 33 (1971) 1221. [ 4 ] VAN DER LINDEN, R. , DE CORTE, F . , HOSTE, ] . , "Resonance integrals applied to the m u l t i p l e -
comparator method in reactor neutron act ivat ion analysis", Nuclear Data in Sc i ence and Techno logy (Proc. Symp. Paris, 1973) 2, IAEA, Vienna (1973) 241; VAN DER LINDEN, R., DE CORTE, F . , VAN DEN WINKEL, P . , HOSTE, ] . , J . Radioanal. C h e m . 11 (1972) 133.
[ 5 ] SIMS, G . H . E . , JUHNKE, D . G . , J. Inorg. Nucl . C h e m . 29 (1967) 593 . [ 6 ] STEINNESS, E . , J. Inorg. Nucl . C h e m . 34 (1972) 2 6 9 9 . [ 7 ] ZIJP, W. L. , "Nuclear data for neutron metrology", Nuclear Data in S c i e n c e and Techno logy (Proc.
Symp. Paris, 1973) 2, IAEA, Vienna (1973) 2 7 1 . [ 8 ] DAHLBERG, R. , JIRLOW, K . , JOHANSSON, E. , ]. Nuc l . Energy 14 A/B (1961) 53. [ 9 ] BEN-DAVID, G . , HUEBSCHMANN, B. , I. Nuc l . Energy 16 A / B (1962) 291 .
[ 1 0 ] RYVES, T . B . , ] . Nucl . Energy 24_ (1970) 35 . [ 1 1 ] BAUMANN, N . P . , Resonance Integrals and Se l f - sh ie ld ing Factors for Detector Foils, Rep. DP-817 (1965) .
82 ALBINSSON
[ 1 2 ] TATTERSALL, R. B . , et a l . , J. Nucl . Energy 12 A (1960) 32 . [ 1 3 ] BREITENHUBER, L. , HEIMEL, H . , PINTER, M . . Atomkernenergie 15 (1970) 83. [ 1 4 ] KASHUKEEV, N . T . , e t a l . , J. Nucl . Energy 14 A/B (1961) 76. [ 1 5 ] SIMS, G . H . E . , JUHNKE, D . G . , J. Inorg. Nucl . C h e m . 31 (1969) 3721 . [ 1 6 ] FRENCH, R. L. D . , BRADLEY, B. , Nuc l . Phys. 65 (1965) 2 2 5 . [ 1 7 ] KIM. J. I . , GRYNTAKIS, E . . Radiochim. Acta 17 (1972) 191 . [ 1 8 ] KÖHLER, W . , SCHMELZ, H . , Nukleonik 9 (1967) 270 . [ 1 9 ] SIMS, G . H . E . , JUHNKE. D . G . , J. Inorg. Nucl . Chem. 32 (1970) 2 8 3 9 . [ 2 0 ] GEIGER, K . W . , VAN DER ZWAN, L. , Nukleonik 10 (1967) 2 7 7 . [ 2 1 ] KAPCHIGASHEV, S . P . , POPOV, Yu .P . , At. Ehnerg. 16 (1964) 2 5 6 . [ 2 2 ] SIMS. G . H . E . , JUHNKE, D . G . , J. Inorg. Nucl . C h e m . 30 (1968) 349 . [ 2 3 ] STIEGLITZ, R . G . , HOCKENBURY. R . W . , BLOCK, R . C . , Nuc l . Phys. A163 (1970) 592 . [ 2 4 ] SCOVILLE, J . J . , e t a l . , Reports to the AEC Nuclear Cross-Sect ion Advisory Group, WASH-1041(1962) 37 . [ 2 5 ] CARRE, J . C . , VIDAL, R., "Mesures des sections e f f i c a c e s e t des intégrales de résonance par la méthode
d 'osc i l l a t ion" , Nuclear Data for Reactors (Proc. Int. Conf . Paris, 1966) IAEA, Vienna (1967) 4 7 9 . [ 2 6 ] LOUWRIER, P .W. F . , ATEN, A . H . W . , Jr. , J. Nuc l . Energy 19 A/B (1965) 2 6 7 . [ 2 7 ] AXTON, E . J . , J. Nuc l . Energy 17 A/B (1963) 125. [ 2 8 ] STORY, J . S . , "The resonance capture integral of manganese" , Note in JAMES, M . F . , STORY, J . S . ,
Winfrith Nuclear Data Group Notes on Topics in Nuclear Data Evaluation, 1964 - 1 9 6 8 , AEEW-M-790 (1968) . [ 2 9 ] ORVINI, E . , GAGGERO. G . , LESCA, L. , BRESESTI, A . M . , BRESESTI, M . , J. Inorg. Nucl . C h e m . 30
(1968) 1353. [ 3 0 ] BRUNE, D . , JIRLOW, K . , J. Nucl . Energy 17 A/B (1963) 350 . [ 3 1 ] HALPERIN, J . , et a l . , C h e m . Div . Ann. Prog. Rep. for Period ending June20, 1964, ORNL-3676(1964) 16. [ 3 2 ] EASTWOOD, T . A . , WERNER, R. D . , Can. J. Phys. 41 (1963) 1263. [ 3 3 ] JOHNSTON, F . J . , HALPERIN, J . , STOUGHTON, R . W . , J. Nuc l . Energy 11 A (1960) 95. [ 3 4 ] EMERY, J . F . , J. Inorg. Nucl . C h e m . 27 (1965) 903. [ 3 5 ] KAPCHIGASHEV, S . P . . POPOV, Y u . P . , At. Ehnerg. 15 (1963) 120 . [ 3 6 ] ROSE, H . , COOPER, W . A . , TATTERSALL, R . B . , "The use of the p i l e osci l lator in thermal reactor
problems", 2nd Int. Conf. Peace fu l Uses At. Energy (Proc. Conf. Geneva , 1958) 1, UN, New York (1958) 16.
[ 3 7 ] RICABARRA, M . D . , TURJANSKI, R . , RICABARRA, G . H . , Can. J. Phys. 47 (1969) 2 0 3 1 . [ 3 8 ] CLAYTON, E. , Australian AEC, Rep. AAEC/TM619 (1972) . [ 3 9 ] RICABARRA, M . D . , TURJANSKI, R. , RICABARRA, G . H . , Can. J. Phys. 50 (1972) 1978. [ 4 0 ] BORCHARDT, G . , Rep. JÜ1-503-RX (1967) . [ 4 1 ] SOKOLOWSKI, E . K . , BLADH, R. , Rep. AE-351 (1969) . [ 4 2 ] SIMS, G . H . E . , JUHNKE, D . G . , J. Inorg. Nucl . C h e m . 29 (1967) 2 8 5 3 . [ 4 3 ] RICABARRA. M . D . , TURJANSKI, R. , RICABARRA, G . H . , BIGHAM, C . B . , Can. J. Phys. 46 (1968) 2473 . [ 4 4 ] EDER, O . J . , LAMMER, M . , "Influence of uncertainties in f iss ion-product nuclear data on the interpre-
tat ion of g a m m a - s p e c t r o m e t r i c measurements on burnt fue l e l ement s" . Nuclear Data in S c i e n c e and T e c h -nology (Proc. Symp. Paris, 1973) 1, IAEA, Vienna (1973) 233 .
[ 4 5 ] RYVES, T. B. , J. Nucl . Energy 2 5 (1971) 129. [ 4 6 ] WALKER, W . H . , Rep. AECL-3037 (1969) . [ 4 7 ] BRADLEY, J . G . , JOHNSON, W . H . , Nucl . Se i . Eng. 47 (1972) 151. [ 4 8 ] BEMIS, C . E . , Jr. , DRUSCHEL, R. E . . HALPERIN, J . . WOLTON, J . R . , Nuc l . Se i . Eng. « ( 1 9 7 2 ) 3 7 1 . [ 4 9 ] RICABARRA, G . H . , TURJANSKI, R. , RICABARRA, M. D . , "Medidas de integrates de resonancia de
a c t i v a c i ó n a d i luc ión infinita con un espectrómetro de rayos g a m m a de G e - L i y comparac ión con los valores ca lculados" , Nuclear Data for Reactors (Proc. Conf. Helsinki, 1970) 2, IAEA, Vienna (1970) 589 .
[ 50] KAPCHIGASHEV, S. P . , At. Ehnerg. 19 (1965) 294 . [ 5 1 ] SKOLNIK, W . , FRANCIS, N . C . , Trans. Am. Nuc l . Soc . 2 (1959) 121. [ 5 2 ] FULMER, R . H . , STRICOS, D. P . , RUANE, T. F . , Nucl . Se i . Eng. 46 (1971) 314. [ 5 3 ] RICABARRA, M . D . , TURJANSKI, R . , RICABARRA. G . H . , Can. J. Phys. 48 (1970) 2362 . [ 5 4 ] HELLSTRAND, E . , LUNDGREN, G . , Nukleonik 4 (1962) 323 . [ 55] ARGONNE NATIONAL LAB., 111., Reactor D e v e l o p m e n t Program, Prog. Rep. June 1962, ANL-6580
(1962) 32 . [ 5 6 ] SCHWE, H . , COTE, R . E . , Phys. Rev. 1/19 (1969) 1148 . [ 5 7 ] HEIMEL, H . , HEINDLER, M . , Atomkernenergie 20 (1972) 135. [ 5 8 ] CABELL, M . J . , J. Inorg. Nuc l . C h e m . 21 (1961) 1. [ 5 9 ] KÖHLER, W . , SCHNEIDER, E . , Nukleonik 12 (1969) 197. [ 6 0 ] CABELL, M . J . , J. Nucl . Energy 12 A (1960) 172.
INFINITE-DILUTION RESONANCE INTEGRALS 83
[ 6 1 ] HALPERIN, ] . . e t a l . , C h e m . Div . Ann. Prog. Rep. for Period ending May 20 , 1965, ORNL-3822 (1965) 4 . [ 6 2 ] LANTZ, P . M . , C h e m . Div . Ann. Prog. Rep. for Period ending June 20, 1964, ORNL-3679 (1964) 10. [ 63 ] HALPERIN, J . , DRUSCHEL, R. E . , C h e m . Div . Ann. Prog. Rep. for Period ending June 20, 1964,
ORNL-3679 (1964) 15. [ 6 4 ] WERNER, R . D . , EASTWOOD, T. A . , Nuc l . Se i . Eng. 2 1 (1965) 20 . [ 6 5 ] SCOVILLE, J . J . , FAST, E . , Reports to the AEC Nuclear Cross-Sect ion Advisory Group, WASH-1053
(1964) 78 . [ 6 6 ] WALKER, W . H . , COPLEY, L. A . , Can. J. Phys. 44 (1966) 1985. [ 6 7 ] VIDAL, R . , Mesure des intégrales de résonance d'absorption, Rep. CEA-R-2486 (1964) . [ 6 8 ] MARKOVIC, V . , KOCIC, A . , Bull. Boris Kidric Inst. Nucl . Se i . 18 (1967) 11. [ 6 9 ] LUX, F . , KÖHLER, W . , Prog. Rep. Nucl . Data Res. , Euratom, July 1, 1963 - D e c . 31, 1964,
EANDC(E) 57 "V" (1965) 28 . [ 7 0 ] BRESESTI, A . M . , BRESESTI, M . , NEUMANN, H . , J. Inorg. Nuc l . C h e m . 29 (1967) 2477 . [ 7 1 ] DRAKE, M. K . , N u c l e o n i c s 2 4 8 (1966) 108. [ 7 2 ] PEARLSTEIN, S . , Nuc l . Se i . Eng. 2 6 (1966) 281 . [ 7 3 ] BECKURTS, K . H . , BROSE, M . , KNOCHE, M . , KRÜGER, G . , PÖNITZ, W . , SCHMIDT, H . , Nucl . Se i .
Eng. 17 (1963) 329 . [ 7 4 ] WALKER, W . H . , WESTCOTT, C . H . , ALEXANDER, T . K . , Can. J. Phys. 38 (1960) 57. [ 7 5 ] MAXIA, V . , ORVINI, E . , ROLLIER, M . , Nuc l . Sei . Eng. 35 (1969) 88 . [ 7 6 ] BRESESTI, M . , BRESESTI, A . M . , NEUMANN, H . , ORVINI, E . , J. Inorg. Nucl . C h e m . 26 . (1964) 1625. [ 7 7 ] ROY, J . C . , WUSCHKE, D . , Can. J. C h e m . 36 (1958) 1424. [ 7 8 ] HALPERIN, J . , DRUSCHEL, R . E . , C h e m . Div . Ann. Prog. Rep. for Period ending June 20, 1963,
ORNL-3488 (1963) 15. [ 7 9 ] BRUNE, D . , Radiochim. Acta 12 (1969) 119. [ 8 0 ] BROWN, F . , CAMPION, P . J . , OLIVER, B. H . , J. Nucl . Energy 13 A (1961) 141. [ 8 1 ] BAERG, A. P . , BARTHOLOMEW, R. M . , Can. J. Chem. 38 (1960) 2528 . [ 8 2 ] BAERG, A . P . , BROWN, F . , LOUNSBURY, M . , Can. J. Phys. 36 (1958) 863 . [ 8 3 ] KONKS, V . A . , POPOV, Yu. P . , SHAPIRO, F . L . , J. Exp. Theor. Phys. 46 (1964) 80. [ 8 4 ] SCHWE, H . , COTE, R. E . , PRESTWICH, W . V . , Phys. Rev. 159 (1967) 1050. [ 8 5 ] ALST AD, J . , J AHNSEN, T . , PAPPAS, A . C . , J. Inorg. Nucl . C h e m . 29 (1967) 2 1 5 5 . [ 8 6 ] LANTZ, P . M . , BALDOCK, C . R . , IDON, L . E . , Nucl . Se i . Eng. 20 (1964) 302 . [ 8 7 ] LANTZ, P . , Nuc l . Se i . Eng. 13 (1962) 289 . [ 8 8 ] ROY, J . C . , ROY, L. P . , Can. J. Phys. 37 (1959) 907 . [ 8 9 ] SCOVILLE, J . J . , ROGER, J . R . , Trans. A m . Nucl . Soc . 8 (1965) 290 . [ 9 0 ] RUIZ, C . P . , PETERSON, S . P . , Jr., RIDER. B . F . , Trans. A m . Nucl . Soc . 7 (1964) 270 . [ 9 1 ] CABELL, M. J., J. Inorg. Nucl . C h e m . 32 (1970) 3433 . [ 9 2 ] SCHUMAN, R. P . , BERRETH, J . R . , Nuc l . Se i . Eng. 12 (1962) 519 . [ 9 3 ] KIRUAC, G . J . , EILAND, H . M . , CONRAD. C . A . , SLOVACEK, R . E . , SEEMANN, K . W . , Nuc l . Se i .
Eng. 52 (1973) 310 . [ 9 4 ] CODDING, J . E . , Jr. , TROMP, R. L . , SIMPSON, F. B. , N u c l . Se i . Eng. 43 (1971) 58. [ 9 5 ] FENNER. N . C . , LARGE, R . S . , J. Inorg. Nucl . Chem. 29 (1967) 2 1 4 7 . [ 9 6 ] AITKIN, K. L. , CORNISH, F. W . , J. Inorg. Nuc l . C h e m . r? (1961) 6 . [ 9 7 ] HALPERIN, J . , DRUSCHEL, R . E . , BALDOCK, C . R . , Trans. A m . Nuc l . Soc . 5 (1962) 376 . [ 9 8 ] RAHN, F . , e t a l . , Nucl . Se i . Eng. « ( 1 9 7 2 ) 219 . [ 9 9 ] WALKER, W . H . , GREEN. R . E . , Can. J. Phys. 39 (1961) 1184.
[ 1 0 0 ] CABELL, M . , J. Inorg. Nuc l . C h e m . 2 4 (1962) 749. [ 1 0 1 ] GIBELLO, A . , ORESTANO, F . V . , PISTELLA, F . , SANTANDREA, E. , Nuc l . Se i . Eng. 40 (1970) 51. [ 1 0 2 ] SIMS, G . H . E . , JUHNKE, D . G . , J. Inorg. Nuc l . C h e m . 29 (1967) 2671 . [ 1 0 3 ] EILAND, H . M . , WEINSTEIN, S . , SEEMANN, K. W . , "Neutron cross sect ions and strength functions
of S m - 1 4 7 and S m - 1 5 0 " , Neutron Cross Sect ions and Techno logy (Proc. 3rd Conf . Knoxvi l l e , 1971) 2, CONF-710301 (1971) 673 .
[ 1 0 4 ] MUGHABGHAB, S . F . , CHRIEN, R.E . , Phys. Rev. 180 (1969) 1131. [ 1 0 5 ] LANTZ, P . M . , BALDOCK, C . R . , IDOM, L . E . , Chem. Div . Ann. Prog. Rep. for Period ending May 2 0 ,
1965, ORNL-3832 (1965) 7 . [ 1 0 6 ] SCOVILLE, J . J . , FAST, E . . ROGERS. J . W . , Nucl . S e i . Eng. 25 (1966) 12. [ 1 0 7 ] DOBROZEMSKY, R. , PICHLMAYER, F . , VIEHBÖCK, F . P . , Massenspektrometrische Bestimmung der
Neutroneneinfangsquerschnitte von Isotopen der se l tenen Erden , Rep. S G A E - P H - 1 0 4 / 1 9 7 1 , Reaktorzentrum Seibersdorf, Austria (1971) .
[ 1 0 8 ] OFFICE OF ATOMIC ENERGY FOR PEACE, Bangkok, Certain Accounts on the Ut i l i za t ion of the THAI Research Reactor, Bangkok Conf . Rep. THAI-AEC-10 (1967) .
84 ALBINSSON
[ 1 0 9 ] MUGHABGHAB, S . F . , CHRIEN, R.E . , Phys. Rev. 174 (1968) 1400. [ 1 1 0 ] NILSSON, R. . Nucl . Phys. 29 (1962) 66 . [ 1 1 1 ] PATTENDEN, N . J . , Nucl . S e i . Eng. 17 (1963) 371 . [ 1 1 2 ] SPIVAK, P . E . , e t a l . , "Measurements of the resonance absorption integrals for various mater ia l s and
- the mul t ip l i ca t ion c o e f f i c i e n t of resonance neutrons for f iss ionable isotopes", 1st Int. Conf. Peacefu l Uses At. Energy (Proc. Conf. Geneva, 1955) 5, UN, New York (1956) 91.
[ 1 1 3 ] ROGERS, J . W . , SCOVILLE, J . J . , Nucl . Se i . Eng. 33 (1968) 350 . [ 1 1 4 ] DEMMELER, M . , e t a l . , Atomwirtsch. 16 (1971) 532. [ 1 1 5 ] LATEK, S . . TOPA, J . , Nukleonika 13 (1968) 881. [ 1 1 6 ] LESAGE, L. , SHER, R. , "Measurement of inf inite di lut ion capture resonance integrals with a Moxon-
Rae detector", Reactor Physics in the Resonance and T h e r m a l Regions (Proc. ANS Natl . Top. M e e t . San Diego , Cal i f . , 1966) 2, MIT Press, Cambridge, Mass . , and London (1966) 175.
[ 1 1 7 ] ARGONNE NATIONAL LAB., 111., Reactor D e v e l o p m e n t Program, Prog. Rep. June 1962, ANL-6580 (1962) 3 2 .
[ 1 1 8 ] FAST, E . , SCOVILLE, J . J . , MTR-ETR T e c h n i c a l Branches Quarterly Rep . , Jan. 1 - M a r . 31, 1962, IDO-16781 (1962) 2.
[ 1 1 9 ] JOANOU, G . , STEVENS, C . , Neutron Cross Sect ion for the W Isotopes, General Atomic Rep. G A - 5 8 8 5 (1964) .
[ 1 2 0 ] PIERCE, C . R . , SHOOK, D . F . , Nucl . Se i . Eng. 31 (1968) 431 . [ 1 2 1 ] BELLER, L. , LATHAM, D . , OTTER, J . , Measurements of the Resonance Integral in 186 W, North
Amer ican Aviat ion, I n c . , Rep. NAA-SR-12500 (1967) . [ 1 2 2 ] GILETTE, J . , Review of the Radioisotope Program, Rep. ORNL-4013 (1965) . [ 1 2 3 ] FRIESENHAHN, S . J . , GIBBS, D . A . , HADDAD, E. , F RÖHN ER, F. H . , LOPEZ, W . M . , J. Nuc l . Energy
22 (1968) 191. [ 1 2 4 ] SHER, R . , LESAGE, L. , CONNOLLY, T . J . , BROWN, H . L . , Proc. A m . Nucl . Soc . 9 (1966) 2 4 8 . [ 1 2 5 ] SHOOK, D . F . , PIERCE. C . R . , Proc. A m . Nucl . Soc . 10 (1967) 261 . [ 1 2 6 ] KIM, J . I . , ADAMS, F . , Radiochim. Acta 8 (1967) 165. [ 1 2 7 ] HALPERIN, J . , OLIVER, J . H . , C h e m . Div . Ann. Prog. Rep. for Period ending June 20 , 1962, ORNL-3320
(1962) 2 . [ 1 2 8 ] ATTREE, R. W . , e t a l . , Can. J. Phys. 40 (1962) 194. [ 1 2 9 ] COTE, R . E . , DIAMOND, H . , GINDLER, J . E . , SCHWE, H . , Phys. Rev. 176 (1968) 1421. [ 1 3 0 ] FOELL, W . K . , CONOLLY, J . , Nucl . Se i . Eng. 21 (1965) 406 . [ 1 3 1 ] HARDY, J . , N u c l . Se i . Eng. 22 (1965) 121 . [ 1 3 2 ] BHAT, M . R . , CHRIEN, R . E . , Phys. Rev. 155 (1967) 1362. [ 133] BROSE, M . , Nuc l . Se i . Eng. 19 (1964) 244. [ 1 3 4 ] ASGHAR, M . , e t a l . , Nuc l . Phys. 76 (1966) 196. [ 1 3 5 ] JOHNSTON, F . J . , HALPERIN, J . , STOUGHTON, R . W . , J. Nuc l . Energy 11 A (1960) 95. [ 1 3 6 ] TIREN, L . I . , JENKINS, J. M . . Resonance Shielding in Thorium-Graphite Mixtures, Rep. AEEW-R-163
(1962) . [ 1 3 7 ] EASTWOOD, T . A . , WERNER, R. D . , Can. J. Phys. 38 (1960) 751. [ 1 3 8 ] HALPERIN, J . , e t a l . , C h e m . Div. Ann. Prog. Rep. for Period ending June 20 , 1962, ORNL-3320 (1962) 1. [ 1 3 9 ] HALPERIN, J . , BALDOCK, C. R. , OLIVER, J . H . , Nuc l . Se i . Eng. 21 (1965) 2 5 7 . [ 1 4 0 ] HALPERIN, J . , e t a l . , Nuc l . Se i . Eng. 16 (1963) 245 . [ 1 4 1 ] BIGHAM, C . B . , Fission Resonance Integrals of U - 2 3 3 , U - 2 3 5 , Pu-239, and Pu-241, Chalk River
Rep. AECL-1910 (1964) . [ 1 4 2 ] HARDY, J . , Nuc l . Se i . Eng. 22 (1965) 121. [ 1 4 3 ] ESCH, L . J . , FEINER, F . , Trans. Am. Nucl . Soc . 7 (1964) 2 7 2 . [ 1 4 4 ] YASUNO, T . , J. Nucl . S e i . T e c h n o l . 2 (1965) 532. [ 1 4 5 ] EILAND, H. M . , ESCH, L . J . , FEINER, F . , MEWHERTER, J. L . , Nucl . S e i . Eng. 4 4 ( 1 9 7 1 ) 180 . [ 1 4 6 ] FEINER, F . , ESCH, L. J . , "Survey of capture and fission integrals of f iss i le materials", Reactor Physics
in the Resonance and T h e r m a l Regions (Proc. ANS Nat l . Top. Meet . San D iego , C a l i f . , 1966) 2, MIT Press, Cambridge , M a s s . , and London (1966) 2 9 9 .
[ 1 4 7 ] BAUMANN, N . P . , Reports to the AEC Nuclear Cross-Sect ion Advisory Group, WASH-1046 (1964) 49. [ 1 4 8 ] RYVES, T. B. , HUNT, J. B . , GOODIER, I . W . , J. Nuc l . Energy 22 (1968) 465 . [ 1 4 9 ] KONDUROV, I . A . , EGOROV, A . I . , KAMINKER, M . , KOROTKIKH, E . M . , NIKITIN, A . M . , At.
Ehnerg. 2 4 (1968) 533. [ 1 5 0 ] HOGG, C . , WEBER, L. , YATES, E . , Phillips Petr., USA, Rep. IDO-16744 (1962) . [ 1 5 1 ] ANDERSSON, L. L. , Heal th Phys. 10 (1964) 315 . [ 1 5 2 ] KOCIC, A . , MARKOVIC, V . , Bull. Boris Kidric Inst. Nucl . Se i . 19 (1968) 13.
INFINITE-DILUTION RESONANCE INTEGRALS 85
[ 1 5 3 ] BRESESTI, M . , CAPPELLANI, F . , DEL TURCO, A . M . , NEUMANN, H . . J. Inorg. Nucl . C h e m . 27 (1965) 1175.
[ 1 5 4 ] O'BRIEN, H . A . , Jr. , ELDRIDGE, J . S . , DRUSCHEL, R . E . , HALPERIN, ] . , J. Inorg. Nucl . C h e m . 29 (1967) 584.
[ 1 5 5 ] STOKES, G . E . , SCHUMAN, R. P . . SIMPSON, O . D . , Nucl . Se i . Eng. 33 (1968) 16. [ 1 5 6 ] JOHANSSON, E. , Diss. Chalmers Tekn. Högskola, Göteborg (1966) . [ 1 5 7 ] KONKS, V . A . , SHAPIRO, F . L . , Sov. Phys. - JETP 20 (1965) 531. [ 1 5 8 ] KALEBIN, S . M . , e t a l . , Sov. J. At. Energy 26 (1969) 588. [ 1 5 9 ] CONNOR, J . C . , BAYARD. R. T . . MACDONALD, D . . GUNST, S . B . , Nuc l . Se i . Eng. 29 (1967) 4 0 8 . [ 1 6 0 ] SIMPSON, F . B . , CODDING, J . W . , Jr., Nuc l . Se i . Eng. 28 (1967) 133. [ 1 6 1 ] CONWAY, D . E . , GUNST, S. B . , Nuc l . Se i . Eng. 29 (1967) 1. [ 1 6 2 ] CAO, M . G . , M1GNECO, E . , THEOBALD, J . P . , MERLA, M . , "Fiss ion-cross-sect ion measurement
of 233 U", Nuclear Data for Reactors (Proc. Conf. Helsinki, 1970) 1, IAEA, Vienna (1970) 4 1 9 . [ 1 6 3 ] HENNIES, H . H . , "Cross-sections and resonance parameters for 2 3 5 U, 233 U, 239 Pu and 241 Pu between
c a d m i u m cutoff and 10 keV", Nuclear Data for Reactors (Proc. Conf. Paris, 1966) 2, IAEA, Vienna (1967) 333 .
[ 1 6 4 ] BÄK, M. A . , et a l . , Sov. J. At. Energy 28 (1970) 460 . [ 1 6 5 ] KONAKHOVICH, Yu. Y a . , PEVZNER, M . I . , Sov. J. At. Energy 8 (1961) 39 . [ 1 6 6 ] PEARLSTEIN, S . , Cross Sect ions for Transuranium Element Production, Rep. BNL-982 (1966) 22 . [ 167] HELLSTRAND, E. , Studies of the Fission Integrals of U235 and Pu239 with C a d m i u m and Boron Filters,
Rep. AE-181 (1965) . [ 1 6 8 ] DE SAUSSURE, G . , e t a l . , "Measurement of the neutron capture and fission cross-sect ions and of their ratio
alpha for 233 U, 235 U and 239 Pu", Nuclear Data for Reactors (Proc. Conf . Paris, 1966) 2, IAEA, Vienna (1967) 233 .
[ 1 6 9 ] DURHAM, R. W . , et a l . , "Ratio of capture to fission in 2 3 5 U and 239 Pu", Nuclear Data for Reactors (Proc, Conf. Paris, 1966) 2, IAEA, Vienna (1967) 17.
[ 1 7 0 ] BAUMANN, N . P . , HALFORD, J. D . , PELLARIN, D . J . , Nucl . Se i . Eng. 32 (1969) 265 . [ 1 7 1 ] CARLSON, A . D . , FRIESENHAHN, S . J . , LOPEZ, W . M . , FRICKE, M . P . , Nuc l . Phys. A141 (1970) 577 . [ 1 7 2 ] CABELL, M . J . , EASTWOOD, T. A . , CAMPION, P . J . , J. Nucl . Energy 7 (1958) 81 . [ 1 7 3 ] HENELLY, E . J . , CORNMAN, W . R . , BAUMANN, N . P . , "Pu238 production predict ions from ava i lab le
neutron cross sections", Neutron Cross Sect ion and Techno logy (Proc. Conf. Washington, 1968) 2 (GOLDBERG, D . T . , Ed.) (1968) 1271 .
[ 1 7 4 ] ALEKSANDROV, B . M . , BÄK, M. A . , KRIVOKHATSKIJ, A . S . , SHIYAMIN, E . A . , Sov. J. At. Energy 32 (1972) 203 .
[ 1 7 5 ] STOUGHTON, R. W . . HALPERIN, J . , Nuc l . Se i . Eng. 6 (1959) 100. [ 1 7 6 ] BOLLINGER, L. M . , COTE, R. E . , DAHLBERG, D . A . , THOMAS, G . E . , Phys. Rev. 105 (1957) 661 . [ 1 7 7 ] YOUNG, T . E . , SIMPSON, F . B . , BERRETH, J . R . , Nucl . Se i . Eng. 30 (1967) 355 . [ 1 7 8 ] BUTLER, J. P . , LOUNSBURY, M . , MERRITT, J . J . , Can. J. Phys. 35 (1957) 147. [ 1 7 9 ] HARDY, J . , Jr., KLEIN, D . , SMITH, G . G . , Nuc l . Se i . Eng. 9 (1961) 341 . [ 1 8 0 ] YASUNO, T . J . , Nucl . Se i . T e c h n o l . 4 (1967) 43 . [ 1 8 1 ] HANN A, G . C . , WESTCOTT, C. H . , LEMMEL, H . D . , LEONARD, B . R . , Jr.. STORY, J . S . , ATTREE, P . M . ,
At. Energy Rev. 7 (1969) 3. [ 1 8 2 ] KRUPCHINSKY, P . A . , J. Nucl . Energy 6 (1957) 155. [ 1 8 3 ] NICHOLS, W . H . , Nucl . Se i . Eng. 17 (1963) 144. [ 1 8 4 ] SPIVAK, P. E . , et a l . , in Record of Proceedings of Session 20A, 1st Int. Conf. Peacefu l Uses At.
Energy (Proc. Conf. Geneva , 1955) 5, UN, New York (1956) 172. [ 1 8 5 ] TATTERSALL, R. B. , Thermal Cross-sect ion and Resonance Absorption Integral of Pu240 , Rep. AEEW-
R115 (1962) . [ 1 8 6 ] EROZOLYMSKY, B . G . , e t a l . , J. Nuc l . Energy 4 (1957) 86. [ 1 8 7 ] CORNISH, F . W . , LOUNSBURY, M . , Cross Sec t ion of Pu239 and Pu240 in the Thermal and Epicadmium
Region, Rep. CRC-633 (1956) . [ 1 8 8 ] HALPERIN, J . , OLIVER, J. H . , C h e m . Div . Ann. Prog. Rep. for Period ending June 20 , 1964, ORNL-3679
(1964) 13. [ 189] EASTWOOD, T . A . , e t a l . , "Radiochemical methods applied to the determinat ion of cross sect ions of
reactor interest", 2nd Int. Conf. Peace fu l Uses At. Energy (Proc. Conf. Geneva , 1958) 16, UN, Geneva (1958) 54.
[ 1 9 0 ] BOLLINGER, L . M . , COTE, R. E . , THOMAS, G. E . , "The slow neutron cross sect ions of p l u t o n i u m - 2 3 9 " , 2nd Int. Conf. Peacefu l Uses At. Energy (Proc. Conf. Geneva, 1958) 15, UN, Geneva (1958) 127.
86 ALBINSSON
[ 1 9 1 ] COTE, R . E . , BOLLINGER, L. M . , BARNES, R . F . , DIAMOND, H . , "Slow neutron cross sect ions of
Pu2 4 0 , Pu242 and Am 2 4 3 ", 2nd Int. Conf. Peace fu l Uses At. Energy (Proc. Conf . Geneva, 1958) 16,
UN. Geneva (1958) 77 .
[ 1 9 2 ] LEONARD, B.R. , Jr., SEPPI, E . J . , FRIESEN, W . J . , Nuc l . Se i . Eng. 5 (1959) 32.
[ 1 9 3 ] YOUNG, T . E . . REEDER, S . D . , Nucl . Se i . Eng. 40 (1970) 389 .
[ 1 9 4 ] BÄK, M . A . , e t a l . , Sov. J. At. Energy 2 3 (1967) 1059.
[ 1 9 5 ] BOWMAN, C . D . , AUCHAMPAUGH, G . F . , FULTZ, S . C . , HOFF, R. W . , Phys. Rev. 166 (1968) 1219.
[ 1 9 6 ] PERKINS, S. T . , AUCHAMPAUGH, G. F . , HOFF, R. W . , BOWMAN, C . D . , Nucl . Se i . Eng. 3 2 ( 1 9 6 8 ) 1 3 1 .
[ 1 9 7 ] BERRETH, J .R . , SIMPSON, F. B. , RUSCHKE, B . C . , Nuc l . Sei . Eng. 49 (1972) 203 .
[ 1 9 8 ] BENJAMIN, R. W . , MACMURDO, K. W . , SPENCER, J . D . , Nucl . Se i . Eng. £7 (1972) 203 .
[ 1 9 9 ] THOMPSON, M . C . , HYDER, M. L. , REULAND, R . J . , J. Inorg. N u c l . C h e m . 33 (1971) 1553.
[ 2 0 0 ] HALPERIN, J. , OLIVER, J . H . , STOUGHTON, R . W . , Chem. Div . Ann. Prog. Rep. 1970, ORNL-4581
(1971) 2 8 .
[ 2 0 1 ] HALPERIN, J. , DRUSCHEL, R. E . , EBY, R . E . , USAEC Rep. ORNL-4437 (1969) .
[ 2 0 2 ] CHETHAM-STRODE, A . , C h e m . Div . Ann. Prog. Rep. for Period ending May 20, 1965, ORNL-3832
(1965) 1.
[ 2 0 3 ] HALPERIN, J. , BEMIS, C . E . , DRUSCHEL, R. E . , STOKELY, J . R . , Nuc l . Se i . Eng. 37 (1969) 228 .
[ 2 0 4 ] FOLGER, R . L . , SMITH, J. A . , BROWN, L . C . , OVERMAN, R . F . , HOLCOMB, H . P . , Foi l Measure-
ments of Integral Cross Sect ions of Higher Mass Actinides, Rep. D P - M S - 6 7 - 1 1 2 (1968) .
[ 2 0 5 ] RUSCHE, B . C . , Trans. A m . Nuc l . Soc . 1 4 ( 1 9 7 1 ) 344.
[ 2 0 6 ] MACMURDO. K. W . , HARBOUR, R . M . , J. Inorg. Nucl . Chem. 34 (1972) 449 .
T A B L E S AND G R A P H S O F C R O S S - S E C T I O N S FOR (n,p), (n,a) and (n, 2n ) R E A C T I O N S IN T H E N E U T R O N E N E R G Y REGION 1 - 37 M e V
M. BORMANN, H. NEUERT, W. SCOBEL I. Institut für Experimentalphysik, Hamburg University, Hamburg, Federa l Republic of Germany
Part 1
T A B L E S O F C R O S S - S E C T I O N S
( R a n g e : 13. 9 - 15. 1 MeV)
ABSTRACT. The tables of recommended cross-sections are intended mainly to be of practical use in activation analysis and also in nuclear chemica l research or systematic nuclear physical analysis. Therefore the compilat ion is not extended to the reaction types (n, d), (n, y), (n, T) and (n, t), which are usually of minor practical interest. The literature before 1 March 1972 has been considered. The recommended values were deduced from the data by preferentially using series of newer publications. The mean values are characterized by typical errors; it was not possible to calculate weighted mean values because the information given in the literature is sometimes too incomplete to be treated consistently. Occasionally the well-known semiempirical formulae were applied. In some cases no recommendation could be given because of lack of a sufficient number of reliable measurements. The interval of the excitation functions is divided into three groups: 13. 9 - 14 .29 MeV, 14. 3 - 1 4 . 6 9 MeV and 14 .7 - 15. 09 MeV neutron energy. Usually one recommended value for each interval is given. Special attention should be paid to the original literature because in several cases the main sources of errors are the use of different standard values of cross-sections and the incomplete knowledge of the decay scheme of the radioactive isotope considered.
I N T R O D U C T I O N
T h e f o l l o w i n g t a b l e s a r e t h e r e s u l t of a c o m p i l a t i o n of a l l d a t a on c r o s s -s e c t i o n s of n e u t r o n - i n d u c e d r e a c t i o n s of t h e t y p e s (n, p ) , ( n , » ) and (n, 2 n ) in t h e n e u t r o n e n e r g y r a n g e f r o m 13. 9 t o 15. 1 M e V t h a t w e r e a v a i l a b l e t o u s in t h e l i t e r a t u r e . T h e t a b l e s a r e r e s t r i c t e d t o r e a c t i o n s l e a d i n g t o a-, ß- o r 7 - a c t i v e r e s i d u a l n u c l e i w i t h e x p e r i m e n t a l l y m a n a g e a b l e h a l f - l i v e s s o t h a t a c t i v a t i o n t e c h n i q u e s c a n b e u s e d .
F r o m t h i s p o o l of d a t a , m e a n v a l u e s w e r e d e d u c e d f o r e a c h r e a c t i o n a s f a r a s p o s s i b l e , t a k i n g in to a c c o u n t c o n s i d e r a t i o n s a s m e n t i o n e d be low. T h e s e m e a n v a l u e s a r e r e c o m m e n d e d f o r f u r t h e r a p p l i c a t i o n s , e . g. in n u c l e a r c h e m i c a l r e s e a r c h o r in s y s t e m a t i c n u c l e a r p h y s i c a l a n a l y s e s , a s t h e y w e r e c a l c u l a t e d r e p e a t e d l y f o r a l l t h r e e r e a c t i o n t y p e s [ 1 - 6 ] . H o w e v e r , t h e s e r e c o m m e n d e d d a t a a r e i n t e n d e d m a i n l y t o be of p r a c t i c a l u s e in a c t i v a t i o n a n a l y s i s . T h e r e f o r e , t h i s c o m p i l a t i o n w a s no t e x t e n d e d t o t h e r e a c t i o n t y p e s (n, d ) , (n, 7 ), (n, t ) and (n, t J1 t h a t a r e u s u a l l y of m i n o r p r a c t i c a l i n t e r e s t . A s r e g a r d s ( n , t ) r e a c t i o n s , the r e a d e r i s r e f e r r e d to an a r t i c l e by Q a i m et a l . [ 7 ] ,
1 (n. T) = (n, 3He); (n, t) = (n, 3H).
87
88 BORMANN et a l .
P r o c e d u r e of r e c o m m e n d a t i o n
T h i s c o m p i l a t i o n i n c l u d e s e x p e r i m e n t a l c r o s s - s e c t i o n d a t a a v a i l a b l e in t h e l i t e r a t u r e up t o 1 M a r c h 1972. Of g r e a t h e l p f o r the p r e p a r a t i o n of it w a s a n o l d e r c o m p i l a t i o n [ 8 ] and t h e CINDA r e p o r t of l i t e r a t u r e on n e u t r o n d a t a [ 9 ] .
T h e o r i g i n a l p a p e r s o f t e n c o n t a i n no c o m p l e t e i n f o r m a t i o n on the d e t a i l s of t h e e x p e r i m e n t s and t h e e v a l u a t i o n of t h e m e a s u r e d q u a n t i t i e s . E s p e c i a l l y t h e c o m m e n t s on t h e h a l f - l i v e s o r t h e n u c l e a r l e v e l s c h e m e s and b r a n c h i n g r a t i o s o r t h e i s o t o p i c a b u n d a n c e s u s e d , on t h e m e t h o d of n e u t r o n f l u x m e a s u r e -m e n t and t h e b e h a v i o u r of t h e n e u t r o n f l u x a s a f u n c t i o n of t i m e , and on the d e t e r m i n a t i o n of t h e c o u n t i n g e f f i c i e n c i e s a r e s o m e t i m e s i n c o m p l e t e . T h e r e f o r e t h e a v a i l a b l e d a t a canno t b e t r e a t e d c o n s i s t e n t l y and a l s o canno t b e b r o u g h t t o a c o m p a r a b l e s t a t e , so t h a t a p a r t of t h e m m a y con t a in s y s t e m a t i c e r r o r s .
F u r t h e r m o r e t h e e r r o r s , if t h e r e a r e any g iven , o f t e n a r e not s p e c i f i e d a s t o t h e i r m e a n i n g ( s t a t i s t i c a l o r m a x i m u m e r r o r , s t a n d a r d d e v i a t i o n , e t c . ) . T h u s i t i s no t p o s s i b l e t o p e r f o r m t h e c a l c u l a t i o n of a w e i g h t e d m e a n v a l u e in a c l e a r - c u t way u s i n g , e. g. , t h e r e c i p r o c a l s q u a r e of t h e e r r o r s , a s h a s b e e n done f o r (n, 2 n ) r e a c t i o n s only [ 1 0 , 1 1 ] .
T h e r e f o r e we h a v e t r i e d t o d e d u c e r e c o m m e n d e d v a l u e s f r o m t h e a v a i l a b l e d a t a by p r e f e r e n t i a l l y u s i n g s e r i e s of n e w e r p u b l i c a t i o n s , e s p e c i a l l y t h o s e w h i c h c o n t a i n a g r e a t e r n u m b e r of c r o s s - s e c t i o n s t h a t w e r e m e a s u r e d f o r d i f f e r e n t t a r g e t n u c l e i w i t h s i m i l a r m e t h o d s , and o t h e r p u b l i c a t i o n s t h a t p r e s e n t e x t r a o r d i n a r i l y t h o r o u g h m e a s u r e m e n t s . T h e a c c u r a c y of t h e s e m e a n v a l u e s i s c h a r a c t e r i z e d by t y p i c a l e r r o r s ( s t a n d a r d d e v i a t i o n s ) . M e a s u r e d c r o s s - s e c t i o n s s h o w i n g l a r g e d e v i a t i o n s f r o m t h e m a j o r i t y of t h e o t h e r r e s u l t s on t h e s a m e r e a c t i o n w e r e no t t a k e n in to c o n s i d e r a t i o n . O c c a s i o n a l l y t h e w e l l - k n o w n s e m i e m p i r i c a l f o r m u l a e [ 1 , 2 , 12] w e r e a p p l i e d s o a s t o get i n f o r m a t i o n on t h e g e n e r a l t r e n d of t he c r o s s - s e c t i o n v a l u e s .
In s o m e c a s e s no v a l u e could b e r e c o m m e n d e d , e i t h e r b e c a u s e of l a c k of r e l i a b l e m e a s u r e m e n t s o r b e c a u s e only a v e r y s m a l l n u m b e r of c o n t r a -d i c t i n g r e s u l t s w a s a v a i l a b l e . T h e s e c a s e s a r e m a r k e d in t h e t a b l e s w i t h a d a g g e r ( t ) .
T h e r e c o m m e n d a t i o n s a r e g iven f o r n e u t r o n e n e r g i e s f r o m 13. 9 t o 15. 1 M e V . In t h i s i n t e r v a l t h e e x c i t a t i o n f u n c t i o n s of s o m e of t he r e a c t i o n s c h a n g e r a p i d l y . T h e t y p i c a l n e u t r o n e n e r g y s p r e a d i s abou t ± 200 keV. T h e r e f o r e i t s e e m e d t o be r e a s o n a b l e t o d i v i d e t h e p u b l i s h e d da t a in to t h r e e g r o u p s a c c o r d i n g t o t he i n c i d e n t n e u t r o n e n e r g y . T h e s e g r o u p s c o r r e s p o n d to t h e e n e r g y i n t e r v a l s 13. 9 - 14. 29 M e V , 14. 3 - 14. 69 M e V a n d 14. 7 - 15. 09 M e V , r e s p e c t i v e l y . F o r m a n y r e a c t i o n s r e c o m m e n d e d v a l u e s a r e g iven on ly f o r t w o o r one of t h e s e i n t e r v a l s . If a n e x c i t a t i o n f u n c t i o n of t h e r e a c t i o n i s a v a i l a b l e ( s e e P a r t 2 ) , t h e m i s s i n g v a l u e shou ld be i n t e r p o l a t e d .
S t r u c t u r e and n o t a t i o n of t h e t a b l e s
F o r e a c h type of r e a c t i o n — (n , p) , (n , a) and (n, 2n) — a t a b l e i s g i v e n ( T a b l e s I , II and I I I ) . T h e r e a c t i o n s a r e a r r a n g e d a c c o r d i n g t o i n c r e a s -ing a t o m i c n u m b e r Z of the t a r g e t and , w i t h i n one e l e m e n t , a c c o r d i n g t o i n c r e a s i n g m a s s n u m b e r A. T h e f o l l o w i n g i t e m s a r e g iven :
FAST NEUTRON CROSS-SECTIONS 89
C o l u m n 1: N u c l e a r r e a c t i o n . If not o t h e r w i s e s p e c i f i e d , t h e t o t a l c r o s s -s e c t i o n of t h e r e a c t i o n (a t o t) i s p r e s e n t e d . T h e a d d i t i o n a l s y m b o l m in t he n u c l e a r r e a c t i o n s c h e m e i n d i c a t e s t h a t t he c r o s s - s e c t i o n crm f o r t h a t p a r t of t h e r e a c t i o n l e a d i n g t o t h e r e s i d u a l n u c l e u s in a m e t a s t a b l e s t a t e i s g iven . T h e s y m b o l g i n s t e a d of m in t h e r e a c t i o n s c h e m e c h a r a c t e r i z e s t h e p a r t of t h e r e a c t i o n l e a d i n g t o t h e f o r m a t i o n of t h e r e s i d u a l n u c l e u s in t h e g r o u n d - s t a t e p r i o r t o f u r t h e r d e c a y (crs). In t h i s c a s e t h e m e t a s t a b l e s t a t e i s not i n v o l v e d . If t h e m e t a s t a b l e s t a t e of a r e s i d u a l n u c l e u s d e c a y s t o t a l l y , w i t h a n i s o m e r i c t r a n s i t i o n t o t h e g r o u n d - s t a t e and i f , f u r t h e r m o r e , f o r t h e h a l f - l i v e s t h e r e l a t i o n T? » T™ i s v a l i d , t h e t o t a l c r o s s -s e c t i o n a 1 0 ' c a n b e m e a s u r e d by o b s e r v i n g t h e c u m u l a t i v e d e c a y of t h e g r o u n d - s t a t e (CJ8*) o c c u r r i n g w i t h t h e h a l f - l i f e Tf . T h i s c a s e i s c h a r a c t e r i z e d by t h e s y m b o l s S R* at t h e r e s i d u a l n u c l e u s n a m e d R. F i g u r e 1 i l l u s t r a t e s t h e s y m b o l i s m .
FIG. 1. Reaction A(n, p)B with metas tab le state in the residual nucleus. The event in case (a) contributes
to the cross-sect ion o m , in case (b) to 08. o t o t = o111 + 08. If T ^ » T ^ and if the metas table state m decays
in an i someric transition with 100<7o to the ground-state, then o§ ' ' \ the cross-sect ion corresponding to the
c u m u l a t i v e decay with h a l f - l i f e T ? , is equal to o m + o§.
90 BORMANN e t a l .
In t h o s e c a s e s w h e r e no v a l u e cou ld be r e c o m m e n d e d t h e s y m b o l î i s a d d e d . T h e s y m b o l © i n d i c a t e s t h a t t h e r e a r e , a c c o r d i n g t o t h e t a b l e s of L e d e r e r et a l . [ 13 ] t h a t h a v e b e e n u s e d h e r e , u n c e r t a i n t i e s in t h e d e c a y s c h e m e of t he r e a c t i o n o r t h a t s p e c i a l a t t e n t i o n shou ld b e p a i d t o the s c h e m e .
C o l u m n 2: I s o t o p i c a b u n d a n c e ( in p e r c e n t ) of t h e t a r g e t n u c l e u s in a t o m i c a b u n d a n c e . T h e v a l u e s l i s t e d a r e t a k e n f r o m R e f . [ 1 4 ] . U n c e r t a i n t i e s a r e c h a r a c t e r i z e d by the s y m b o l §.
C o l u m n 3: H a l f - l i f e ( T i ) of t h e r e s i d u a l n u c l e u s . T h e s e d a t a a r e t a k e n f r o m R e f . [14 ] if not o t h e r w i s e i n d i c a t e d .
C o l u m n s C r o s s - s e c t i o n s ( in m b ) f o r t h e e n e r g y i n t e r v a l s 14. 1 ± 0. 2 M e V , 4 - 6 : 14. 5+ 0 . 2 M e V , 1 4 . 9 + 0 . 2 M e V , r e s p e c t i v e l y . U s u a l l y one
r e c o m m e n d e d v a l u e i s g iven . F u r t h e r v a l u e s l i s t e d in s q u a r e b r a c k e t s [ ] a r e e x p e r i m e n t a l r e s u l t s t h a t show u n e x p l a i n a b l e d e v i a t i o n s f r o m t h e r e c o m m e n d a t i o n . If only v a l u e s in s q u a r e b r a c k e t s a r e g iven , a r e c o m m e n d a t i o n i s no t p o s s i b l e and no e x p e r i m e n t a l r e s u l t c a n be p r e f e r r e d .
C o l u m n 7: L i s t of r e f e r e n c e n u m b e r s . R e f e r e n c e s in s q u a r e b r a c k e t s [ ] a r e t h o s e f o r t h e c o r r e s p o n d i n g v a l u e s g i v e n in c o l u m n s 4 - 6 . R e f e r e n c e s in r o u n d b r a c k e t s ( ) w e r e e x c l u d e d f r o m c o n s i d e r a -t i o n b e c a u s e t h e y show s t r o n g d e v i a t i o n s o r a r e i m p r o b a b l e f o r p h y s i c a l r e a s o n s .
T a b l e III i s f o l l o w e d by a l i s t of c o m m e n t s . T h e h a n d w r i t t e n n u m b e r s t h r o u g h o u t t h e t a b l e r e f e r t o t h i s l i s t .
R E F E R E N C E S T O I N T R O D U C T I O N
[ 1 ] PEARLSTEIN, S . , Nucl . Data 3A (1967) 327 . [ 2 ] PAI, H. L . , CLARKE, R. L . , CROSS, W . G . , Nucl . Phys. A164 (1971) 526 . [ 3 ] QAIM, S . M . , Z . Naturforsch. 25a (1970) 1977. [ 4 ] BORMANN, M . , LAMMERS, B. , Nucl . Phys. A130 (1969) 195. [ 5 ] QAIM, S . M . , Nucl . Phys., A185 (1972) 614 . [ 6 ] GARDNER, D . G . , ROSENBAUM, S . , Nucl . Phys. A96 (1967) 121. [ 7 ] QAIM, S . M . , WÖLF LE, R., STÖCKLIN, G . , C h e m i c a l Nuclear Data, Measurements and Applicat ions
(Proc. Conf . Canterbury, 1971), Inst, of C iv i l Engineers, London (1971) 121. [ 8 ] BROOKHAVEN NATIONAL LABORATORY, Neutron Cross Sect ions, Rep. BNL-325, 2nd Edn (1966) . [ 9 ] CINDA 71, An Index to the Literature on Microscopic Neutron Data, published by the IAEA on behalf
of the four CINDA centres, IAEA, Vienna (1971) . [ 1 0 ] BÖDY, Z . T . , Thesis, Kossuth University, Debrecen (1972) . [ 1 1 ] BODY, Z . T . , CSIKAI, J . , At. Energy Rev. 11 (1973) 153; see also BODY, Z . T . , INDC (HUN)-10 (1973),
report ava i lab l e from Nuclear Data Sect ion, IAEA, Vienna. [ 1 2 ] GARDNER, D . G . , YU-WEN-YU, Nucl . Phys. 60 (1964) 49. [ 1 3 ] LEDERER, C . M . , HOLLANDER, J . M . , PERLMAN, 1 . , Tab le of Isotopes (6th Edn), Wiley, New York (1967) . [ 1 4 ] SEELMANN-EGGEBERT, W„ PFENNIG, G., MUNZEL, H . , Nuklidkarte (3rd Edn), edi ted by Bundes-
minis ter ium ftlr Wissenschaft l iche Forschung, Bonn (1968) .
FAST NEUTRON CROSS-SECTIONS 91
T A B L E I. 14-MeV (n , p ) C R O S S - S E C T I O N S
Isotopic abundance
(%)
C r o s s - s e c t i o n s (mb]
React ion Isotopic
abundance (%)
Tj 14. 1 MeV 14. 5 MeV 14. 9 MeV R e f e r e n c e s
6 L l ( n , p ) 6 H e 7 . 4 2 0 . 8 8 8 + 2 8 . 5 + 2
3 9 0 ; 399 2 1 ; 401
9 B e ( n , p ) 9 L i 100 0 . 17 s < 4 4 0 2 ; (lo); ( 403 )
** B ( n , p ) 8 0 . 3 9 1 3 . 6 5 s [ 5 ] 2 5 + 4
[ 4 0 4 ] 401 ; ( 1 5 9 )
1 2 C ( n , p ) 1 2 B 9 8 . 8 9 3 0 . 0 2 0 3 s 1 . 9 3 + 0 . 2 5 ( 1 9 + 4)
177 ( 4 0 5 )
' V n . p ) 1 ^ 9 9 . 6 3 3 7 5730 yr 77 i H 4 0 0 ; 406
'^ (n .p j^c 0 . 3 6 6 3 2 . 2 5 8 16 + 4 3 5 1 ; 401
l 6 0 ( n , p ) l 6 N 9 9 . 7 5 9 7 . 1 8 41 + 4 39 i 4
3 4 + 4
4 1 ; 63 ; 158 ; 2 7 9 ; 409 ; ( 1 9 3 ) 4 1 ; 6 3 ; 2 7 9 ; 4 0 7 ; ( 2 2 1 ) 4 1 ; 6 3 ; 158 ; 159; 279 ; 3 5 1 ; 4 0 1 ; 408 ; 410 ; ( 1 9 3 )
1 9 F ( n , p ) 1 9 0 100 27 8 2 0 + 2 19 + 6
18 + 5
3 7 ; 236 ; 406 4 1 1 ; ( 2 2 1 ) 159 ; 225 ; 4 0 1 ; 4 0 8 ; ( 2 3 6 ) ^ 5 1 )
2 3 N a ( n , p ) 2 3 N e 100 38 8 4 3 + 8 Í 3 4 • 1 5 ]
43 + 5
2 3 6 ; 406 ; 412 [ 2 2 1 ] 2 2 5 ; 227 ; 236; 3 3 8 ; 3 5 1 ; 4 0 1 ; 408
2 V ( n , p ) 2 " « N a * 7 8 . 7 0 1 5 . 0 5 h 200 + 20
190 • 19 180 + 18
5 6 ; 74 ; 105 ; H 4 ; 151 ; 2 2 3 ; ( 2 9 3 ; 412) 5 6 ; 74 ; 114 ; 2 2 1 ; 2 2 3 ; ( 1 1 6 ) 5 6 ; 74 ; 114 ; 151; 2 2 3 ; 2 2 5 ; 287 ; 307 ; 4 1 3 ; ( 4 0 1 )
2 *°Na 0 . 0 2 0 s 138 + 14 384
2 5 M g ( n , p ) 2 5 N a 1 0 . 1 3 5 9 . 6 s 4 9 + 5 [ 6 3 + 10]
44 + 5 40 + 4
[59 + 6 ]
41 ; [ 4 1 2 ]
4 1 ; 221 4 1 ; [ 2 2 5 ; 247 ; 3 8 5 ; 4 0 1 )
2 6 M g ( n , p ) 2 6 N a 1 1 . 1 7 1 . 0 8 27 + 7 ( 5 0 + 5)
412 [ 3 8 5 ]
* m decays with 100% to g ( T f „ > T y 2 ) .
92
T A B L E III (cont. )
BORMANN e t a l .
C r o s s - s e c t i o n s (mb) Iso topic — abundance T j 14 .1 MeV 14.5 MeV
(%)
2 7 A 1 ( n , p ) 2 7 M g 100 9 . 4 6 m i n 78 » 7 9 ; 9 3 ; H O ; 1 4 7 ; 1 9 6 ; 2 2 8 ; 2 4 1 ; 2 7 0 ; 2 9 5 ; 3 2 3 ; 3 2 7 ;
3 6 7 ; 4 1 2 ; 4 1 6 ; 4 1 8 ; ( 1 0 5 Í (164); (196) 6 7 ; 8 4 ; 9 3 ; 1 4 7 ; 1 5 9 ; 2 6 1 ; 3 8 8 ; ( 1 1 4 h ( 2 2 1 ) 3 6 ; 147 ; 1 4 9 ; 1 5 9 ; 1 9 6 ; 2 1 4 ; 2 8 7 ; (238); (401); (408); ( 417 )
7 4 ; 4 1 2 ; (155); (163k (405 ) 2 3 0 + 30 7 4 ; 2 2 1 ; 2 6 1 ; ( 1 6 3 )
210 • 2 0 7 4 ; 1 5 5 ; 2 2 5 ; 2 8 7 ; 3 3 8 ; 4 0 1 ; 4 0 8 ; (82>, (163)
2 9 S l ( n , p ) 2 9 A l 4 . 7 0 6 . 6 min 120 + 20 147 + 18
2 2 1 ; 261 4 0 1 ; ( 2 2 5 )
5 0 S l ( n , p ) 5 0 n , A l 3 . 0 9 72 s 0 . 1 8 + 0 . 0 6 < 7
4 1 9 261
3 1 P ( n , p ) 5 1 S i 100 2 . 6 2 h 88 + 8
83 + 5 [ 5 2 + 1 0 ]
1 1 0 , 1 2 4 ; ( 4 1 2 ) (221); ( 414 ) 1 2 8 ; 159 ; [ 2 2 5 ; 4 0 1 ]
32 S(NIP) 1 4 . 3 <1 225 + 25 225 + 12
[ 3 8 0 + 3 0 ]
15
8 ; 2 7 1 ; 3 4 8 ; 4 1 2 ; 4 2 1 ; ( 4 2 0 ) 8 ; [ 2 2 1 ; 4 2 2 ]
8 ; 2 6 ; 2 2 5 ; 2 7 1 ; 3 4 0 ; ( 3 3 8 )
3 * S ( n , p ) 3 * P 4 . 2 2 1 2 . 4 s 78 + 7 . 5
[ 8 5 + 3 9 ]
r 7 3 i \ Í 3 2 + 8 ]
4 1 [ 2 2 1 ] 4 1 ; [ 2 4 7 ; 4 0 1 ]
3 5 C l ( n , p ) 3 5 S 7 5 . 5 2 9 8 8 d 107 + 38 120 + 20
412 2 1 6 ; 423
3 7 C l ( n , p ) , 7 S 2 4 . 4 7 1 5 . 1 min 2 5 + 5 3 3 + 6
4 1 + 4
7 4 , 7 4 ; 7 4 ;
201 221 3 3 8 ; 4 0 1 ; (225); (275); ( 408 )
3 8 A r ( n , p ) ' 8 C l 0 . 0 6 3 3 7 . 3 min 75 • 20 110 + 22
3 7 7 148
* ° A r ( n , p ) ' , 0 C l 9 9 . 6 0 0 1 . 4 min 1 5 . 7 + 2 2 0 + 5
3 7 7 1 4 8 ; 379
3 9 K ( n , p ) ' 9 A r 9 3 . 1 0 2 6 9 y r 354 • 45 1 8 0 ; 1 387
FAST NEUTRON CROSS-SECTIONS 93
T A B L E III (cont . )
I so topic Reac t ion abundance Tj
(%)
C r o s s - s e c t i o n s (mb)
14. 1 MeV 14.5 MeV 14. 9 MeV
[ 8 1 t 3 3 ) 4 4 ; 295 [ 2 2 1 ) 4 4 ; 4 9 ; 4 0 1 ; (225); (338); ("340)
í | 2 C a ( n , p ) í | 2 K 0 . 6 4 1 2 . 3 6 h 175 + 10 2 1 6 ; 2 9 5 ; 3 4 8 216
2 0 7 ; 3 4 0 ; ( 1 4 5 )
22 h 97 + 10 2 9 5 ; 406 110 + 13 216
[ 5 0 1 + 2 4 ] [ 2 0 7 ]
2 2 . 0 min 35 + 7 2 9 5 ; 3 4 8 ; 406 3 6 + 7 53 ; 1 4 5 ; 2 0 7 ; 3 4 0 ; ( 3 3 8 )
' l 5 S c ( n I p ) ' ' 5 C a 100 165 d 55 + 5 56 + 4
5 3 + 6
1 8 ; 406 18 1 8 ; 340
* 6 T l ( n 1 p ) * 6 S c 7 . 9 3 84 d 2 9 0 + 2 0
2 7 0 + 25
3 8 ; 1 8 5 ; (348); ( 4 1 2 ) 8 1 ; 185 3 8 ; 1 8 5 ; 2 2 4 ; 3 4 5 ; 4 2 6 ; ( 2 3 8 )
3 . 3 5 d 120 + 2 0 4 1 2 ; ( 3 4 8 ) 8 1 ; 139 2 2 4 ; (238); ( 345 )
4 4 . 1 h 6 1 + 6 3 8 ; 114 ; 348 8 1 ; 1 1 4 ; 139 3 8 ; 114 ; 224 4 2 6 ; ( 8 2 )
( 4 1 2 ) ( 2 2 1 ) 2 3 8 ; 3 4 5 ; 4 0 1 ;
' ' 9 T l ( n , p ) ' , 9 S c 5 . 5 1 5 7 . 5 m i n 3 0 + 2 35 + 4
3 9 + 6
348 ( 1 6 4 ) 81 2 2 4 ; 3 4 5 ; 4 0 1 ; ( 2 3 8 )
5 0 T l ( n , p ) 5 0 S c 5 . 3 4 1 . 7 m i n [ l 4 7 + 13 )
24 + 5
[ 1 6 4 ] 81 4 9 ; 2 2 4 ; 2 3 8 ; 3 4 5 ; 4 0 1 ; ( 4 2 6 )
5 1 V ( n , p ) 5 1 T i 9 9 . 7 6 5 . 8 m i n 35 + 5
[ 2 7 + 4 . 5 ]
3 6 + 3
3 5 ; 3 4 8 ; 412 [221] 3 5 ; 8 2 ; 3 4 5 ; 4 0 1 ; (49); ("2391;
(338); (408)
94 BORMANN e t a l .
TABLE III (cont. )
I so topic Reac t ion abundance Ti
(%)
C r o s s - s e c t i o n s (mb)
14. 1 MeV 14. 5 MeV 14. 9 MeV R e f e r e n c e s
5 2 C r ( n , p ) 5 2 V 8 3 . 7 6 3 . 7 5 min 9 0 + 1 3 94 + 10
96 + 10
1 6 3 ; 3 4 8 ; 412 1 6 3 ; 221 6 6 ; 1 6 3 ; 2 1 4 ; 3 3 8 ; 4 0 5 ; 4 0 8 ; ( 4 0 1 )
5 3 C r ( n , P ) » v 9 . 5 5 2 . 0 min 4 5 + 6 3 6 + 6
3 4 8 ; 412 6 6 ; 401
5 5 M n ( n , p ) 5 5 C r 100 3 . 6 min 45 + 7 3 7 + 7
3 4 8 ; 4 1 2 ; ( 1 7 9 ) 3 7 0 ; 401
5 " F a ( „ , , p ) 3 i | M n 5 . 8 2 303 d 350 + 3 0
3 1 0 + 25
315 + 25
8 0 ; 2 7 3 ; 3 4 8 ; 4 1 7 ; (9); (241); (412* (428) 7 9 ; ( 3 6 3 ) 2 6 ; 254
5 6 F e ( n , , p ) 5 6 M n 9 1 . 6 6 2. 5 7 h 112 + 6
103 + 6 103 + 6
8 0 ; 1 1 0 ; 1 8 4 ; 2 4 1 ; 2 7 2 ; 2 9 1 ; 3 2 3 ; 3 4 8 ; 4 2 9 ; 4 3 0 ; (9);f412fc
(417); (431)
7 9 ; 184 ; 2 2 1 ; 2 7 2 ; 383 2 6 ; 36 ; 8 0 ; 1 8 4 ; 2 5 4 ; 2 7 2 ; 2 9 1 ; 3 4 0 ; 3 8 3 ; 4 3 2 ; (65); (95); (163>, (405)
" F e ( n , p ) 5 7 M n 2 . 1 9 1 . 7 min [ 5 5 + 6 ] 75 + 8
71 + 7
[ 2 4 1 ; 348J 8 1 65
5 8 F e ( n , p ) 5 8 M n 0 . 3 3 1 . 1 min 2 3 + 4
23 + 3 . 5
3 4 8 65
5 9 C o ( n , p ) 5 9 F o 100 45 d 78 + 10 8 0 + 23
82 + 8
4 1 2 ; 417 311
3 6 7 ; (340); ( 4 3 4 )
5 8 N 1 ( „ , p ) 5 8 g C o * 6 7 . 8 8 7 1 d 4 1 0 + 3 0
3 7 0 + 4 0 330 + 3 0
4 1 ; 6 8 ; 8 0 ; 1 1 9 ; 3 4 8 ; 4 1 7 ;
(9); (97); (251); ( 4 1 7 ) 4 1 ; 7 9 ; 1 1 9 ; ( 4 1 4 ) 2 0 ; 2 6 ; 4 1 ; 4 9 ; 6 8 ; 8 0 ; 119 ; 2 8 7 ; 3 4 5 ; 3 6 7 ; 4 3 3 ; ( 9 7 )
' 8 " C 0 9 . 1 5 h 2 1 8 + 20 190 + 18
160 + 15
2 1 9 2 1 9 2 1 9 ; 3 4 5 ; ( 3 6 7 )
6 0 N i ( n , p ) 6 0 « C o * 2 6 . 2 3 5 . 26 y r 138 + 10 2 2 7 ; 3 4 8 ; 4 1 2 ; 4 1 7 ; ( 9 ) 2 2 7 ; ( 7 9 )
109 + 8 2 2 7 ; 345
2 5 + 6 4 0 1 ; ( 3 6 7 )
FAST NEUTRON CROSS-SECTIONS 95
T A B L E III (cont . )
_ x . C r o s s - s e c t i o n s (mb) Iso topic
Reac t ion abundance (%i
T t 14. 1 MeV 14. 5 MeV 14. 9 MeV R e f e r e n c e s
6 l N l ( n . P ) 6 l e C o " 1 . 1 9 1 . 6 h 88 + 3
103 + 10 98 + 10
3 4 8 ; 435
7 9 ; ( 2 2 1 )
3 4 5 ; ( 3 6 7 )
6 2 N 1 < „ , p ) 6 2 g C 0 3 . 6 6 1 3 . 9 min 19 * 4
24 + 6
21 + 3
1 0 1 ; 435 1)
7 9
3 4 5 ; ( 2 4 0 )
6 2 m C o 1 . 5 min 34 + 2
£15 + 3 ]
2 3 + 4
435
C79J
3 4 5 ; ( 2 4 0 )
6 " N Í ( „ , p ) 6 " g C o 1 . 0 8 7 . 8 min 5 ± 1 4 . 1 + 0 . 0 5
435 1)
2 4 0
M , C o 2 mill 2.* 1
[ 0 . 4 3 + 0 . 0 2 ]
4 3 5
[ 2 4 0 ]
6 3 C u ( n , P ) 6 3 w 6 9 . 0 9 9 2 y r 118 • 2 0 3 4 8 ; 4 1 2 ; 417
6 5 C u ( n , p ) 6 5 N i 3 0 . 9 1 2 . 5 6 H 24 + 4
2 1 + 5
23 + 3
3 5 ; H O ; 2 4 1 ; 2 7 4 ; 3 4 8 ; 3 6 8 ;
4 1 7 ; 437
3 5 ; 274 36; 4 9 ; 9 5 ; 2 1 4 ; 238; 2 7 4 ;
2 7 5 ; 3 6 5 ; 368
6 " z n ( „ , p ) 0 4 0 u 4 8 . 8 9 1 2 . 8 h 200 + 15
185 + 20 170 + 15
3 5 ; 4 4 ; 1 1 4 ; 3 1 2 ; 3 4 8 ; 4 1 2 ;
4 3 6 ; 4 3 7
3 1 2 ; 4 3 8 ; ( 2 2 1 )
4 4 ; 1 1 4 ; 312; 3 6 2 ; 3 6 5 ; 4 0 1 ;
(49); ( 2 4 5 )
6 6 Z n ( n , P ) 6 6 C U 2 7 . 6 1 5 . 1 min 75 i 20
65 + 6
7 0 + 7
3 4 8 ; ( 4 1 2 )
2 6 1 ; ( 2 2 1 )
3 7 ; 365; 3 6 7 ; 401
6 7 Z n ( „ , P ) 6 7 C U 4 . 1 1 6 l . 9 h 39 + 6
4 3 + 10
3 4 8 ; 412
365
6 S Z n < „ , P ) 6 8 C U 1 8 . 5 7 30 8 25
Í 8 i 1]
19 i 4
3 4 8
[ 2 6 1 ]
2 4 0 ; 401
6 9 G a ( „ , p ) 6 9 g z n 6 0 . 4 57 min 1 7 + 4
10 + 1 . 5
97
365
69"zn 13.9 h 21 + 3 23.6 + 3.0
9 7
3 6 5 ; ( 3 3 )
1) Association of decay to ground-state or metastable state not accurately known.
96
TABLE III (cont. )
BORMANN e t a l .
T A . C r o s s - s e c t i o n s (mb) I s o t o p i c R e a c t i o n a b u n d a n c e T j 14. 1 MeV 14. 5 MeV 14. 9 MeV R e f e r e n c e s
(%)
7 1 G a ( n , p ) 7 ' g Z n 3 9 . 6 2 . 4 m i n < 4 1,1,0
5 . 4 + 1 . 2 3 6 5
7 1 ® Z n 3 . 9 h 1 2 + 4 4 4 0
11 + 1 . 5 3 6 5
° G e ( n , p ) 7 0 G a 2 0 . 5 2 2 1 . 1 m i n 1 1 0 + 2 0 3 4 8
f l 2 9 + 6 5 ) [ 2 2 1 )
[ 7 0 + 1 0 ] [ 3 3 8 ; 3 6 5 ]
7 2 G e ( n , p ) 7 2 G a 2 7 . 4 3 1 4 . 1 0 h 32 3 4 8
[ 4 7 + 5 ) [ 2 2 1 ; 3 2 1 ] 3 1 + 4 3 6 5
7 , G e ( n , p ) 7 3 G a 7 . 7 6 4 . 8 h 2 1 3 4 8
2 6 + 3 3 2 1 ; ( 2 2 1 )
2 0 + 4 3 6 5
7 ' 1 G e ( n 1 p ) 7 ' ' G a 3 6 . 5 4 7 . 9 m i n 1 3 . 2 + 1 . 3 3 2 1
10 + 3 3 6 5
5 A s ( n , p ) 7 5 g G e * 1 0 0 8 3 m i n 2 1 + 3 1 8 ; 41 ; 101 ; 1 1 1 ; 1 8 3 ; 2 1 9 ;
4 4 5 2 0 + 3 1 8 ; 2 1 9 ; 5 1 2 ; ( 2 2 1 )
1 9 + 3 1 8 ; 4 1 ; 2 1 9 ; 3 0 3 ; ( 4 0 1 )
1 ; 1 0 1 ; 1 1 1 ; 4 4 5 16 + 1 . 5
1 4 . 5 + 1 . 3
7 i*Se ( n , p ) 7 1 , A s 0 . 8 7 1 7 . 7 d 1 3 5 + 2 0 4 1 ; 145 [ 1 0 8 + 2 0 ] [ 4 1 ; 3 6 3 ]
134 + 2 0 4 1 ; 145; 1 5 4 ; ( 3 0 3 )
7 6 S e ( n , p ) 7 6 A s 9 . 0 2 2 6 . 4 h 56 + 5 . 6 3 6 3
5 6 + 5 153; 154; 303; 364
7 7 S e ( n , p ) 7 7 A b 7 . 5 8 3 8 . 8 h 45 3 4 8
3 5 + 10 2 2 1 ; 3 6 3 36 + 10 3 0 3
7 8 S e ( n , p ) 7 8 G A B > 2 3 . 5 2 1 . 5 h 2 4 + 2 . 4 3 6 3
2 2 + 3 1 5 4 ; 3 6 4 ; ( 3 0 3 )
7 8 O , A 8 6 m i n 0 . 9 3 + 0 . 0 9 3 6 4
8 0 S e ( n , p ) 8 0 A 8 4 9 . 8 2 15 s
FAST NEUTRON CROSS-SECTIONS 97
T A B L E III (cont . )
Isotopic abundance
(%)
C r o s s - s e c t i o n s (mb)
Reac t ion Isotopic
abundance (%)
T 1 14. ! MeV 14. 5 MeV 14. 9 MeV R e f e r e n c e s
7 9 B r ( „ , p ) 7 9 » S e 5 0 . 5 3 7 3 . 9 min 10 + 3 362
8 1 B r ( n , p ) 8 1 « S e 4 9 . 4 6 3 18 min f 2 5 ¿ 6 ) [ 2 8 6 ]
7 + 1 . 5 3 0 3 ; 362
8 1 » S e 57 min 22 + 7
20 + 5
2 8 6 ;
1 2 8 ;
512
2 0 9 ; 3 0 3 ; 362
S 0 K r ( n , p ) 8 C " " B r 2 . 2 7 <i.<i h 55 i 9 175
8 2 K r ( n , p ) 8 2 B r 1 1 . 5 6 3 5 . 4 h 2 3 + 4 175
^ K r f n . p J ^ B r 5 6 . 9 0 32 min 8 . 5 + 1 . 5 175
8 5 H b ( n , p ) 8 5 n , K r 7 2 . 1 5 4 . 4 h 4 . 3 i 0 . 3
4 . 1 + 0 . 4
4.7 + 0 . 5
4 1
512
41 ; 149
8 7 H b ( n , p ) 8 7 K r t 2 7 . 8 5 76 m i n [ 4 . 9 + 0 . 5 ] [ 5 1 2 ]
[ 1 0 + 2 ) [ 1 4 9 ; 4 0 1 ]
8 6 S r ( n , p ) 8 6 8 R b * 9 . 8 6 1 8 . 7 <1 4 1 + 4
42 + 4
4 5 + 4
1 8 ;
18; 1 8 ;
348
( 2 8 6 )
340
8 6 " H b 1 . 0 min 9 + 1 149
8 8 S r ( n , p ) 8 8 R b 8 2 . 5 6 1 7 . 8 min 17 1 1 . 5
17 + 2
1 7 + 2
7 4 ;
7 4 ;
7 4 ;
348
2 2 1 ; 5 1 2 ; ( 2 8 6 )
1 4 9 ; 3 4 0 ; ( 3 5 4 ) ; ( 4 0 1 )
8 9 Y ( n , p ) 8 9 S r 100 5 0 . 5 d 2 3 + 1 . 5
24 + 1 . 6
24 + 2
1 8 ;
18
1 8 ;
(293); (406)
340
9 0 Z r ( n , p ) 9 0 « V * 5 1 . 46 6 4 . 1 h 44 + 4
4 5 + 4
46 + 4
18 ;
18 ;
1 8 ;
2 6 2 ; 348
2 2 1 ; 2 8 6 ; 333
6 1 ; ( 3 4 5 )
9 0 n y 3 . 1 8 h 1 2 . 9 + 1 . 0
1 1 + 2
189
1 4 9 ; 3 4 5 ; 352
t No value recommended.
98
TABLE III (cont. )
BORMANN e t a l .
C r o s s - s e c t i o n s (mb)
React ion abundance (%)
T! 14. 1 MeV 14. 5 MeV 14. 9 MeV R e f e r e n c e s
» W . p ) * 1 « * * 1 1 . 2 3 5 8 . 8 d 32 + 2
4 0 * 8
3 4 + 7
262
3 4 8 ; ( 2 8 6 )
3 4 5 ; ( 3 5 4 )
91® y 5 0 min 1 7 . 5 + 0 . 8
1 8 . 6 + 1 . 9
262
189
9 2 Z r ( n , p ) 9 2 Y 1 7 . 1 1 3 . 5 h 2 1 + 1
19 + 2
2 1 + 2
2 6 2 ; 3 4 8
1 8 9 ; 3 3 3 ; ( 2 8 6 )
4 9 ; 3 4 5 ; 3 5 4 ; 401
9 * Z r ( n , p ) 9 \ 1 7 . 4 0 2 0 min 1 1 + 2
8 + 3
7 + 2
2 6 2 ; 348
2 2 1 ; 3 3 3 ; ( 2 8 6 )
4 9 ; 3 4 5 ; 3 5 4 ; 4 0 1
9 6 Z r ( » , p ) 9 6 V 2 . 8 0 2 . 3 m i n 13 + 4 443
9 2 M o ( n , p ) 9 2 B 1 N b 1 5 . 8 4 1 0 . 2 d 6 2 . 5 + 4 . 0
6 0 + 10
1 8 9 ; (221); ( 2 8 6 )
4 9 ; 254
9 " M o ( n , p ) 9 " n N b 9 . 0 4 6 . 3 min 6 . 0 + 1 . 5 49
9 5 M o ( n , p ) 9 5 N b 1 5 . 7 2 35 d 3 7 + 6 254
9 6 M o ( n , p ) 9 6 N b 1 6 . 5 3 2 3 . 4 h 16 + 3
2 1 + 7
19 + 4
9 2
286
2 5 4 ; ( 4 9 )
9 7 M o ( n , p ) 9 7 « N b * 9 . 4 6 74 min 1 7 . 7 + 1, . 5
1 5 . 9 I 1 . 3
1 1 . 7 i 2 . 3
92
1 8 9 ; ( 2 2 1 ; 2 8 6 )
254
9 7 m N b 1 . 0 min 7 . 4 • 0 . 8 189
9 8 M o ( n , p ) 9 8 « N b t 2 3 . 7 8 1 . 5 min [ 2 + 1) [ 9 2 ] 2)
9 6 " W 5 1 min [ 6 . 7 + 0. • 6 )
[ 4 . 1 + 0 . 5 )
( « i 33 , [ 2 . 6 + 0 . 7 )
[ 9 2 ]
[ 1 8 9 )
[ 4 9 ; 9 2 ; 2 5 4 ; 4 0 1 )
9 9 T c ( n , p ) 9 9 M o 6 6 . 7 h 7 + i 122
9 6 R u ( n , p ) 9 6 T c 5 . 5 1 4 . 3 d 146 + 7
170 + 30
189
130
2) Decay scheme and association of measured T j ¡ i to ground-state and metastable state not known.
FAST NEUTRON CROSS-SECTIONS 99
T A B L E III (cont. )
Isotopic abundance
(%)
C r o s s - s e c t i o n s (mb)
Reac t ion Isotopic
abundance (%)
T l 14. MeV 14.5 MeV 14. 9 MeV R e f e r e n c e s
9 9 R u ( n , p ) " m T c 1 2 . 7 2 6 . 0 h <16 + 4 130
1 0 0 R u ( n , p ) 1 0 0 T c 1 2 . 6 2 17 s 17 + 6 2 4 7 ; 401
1 0 1 R u ( n , p ) 1 0 1 T c t 1 7 . 0 7 1 4 . 0 min [ 2 + 1 . 5 ]
f 3 6 + 3 ]
[ 2 2 1 ]
[ 1 3 0 ]
1 0 2 R u ( n , p ) 1 0 2 T c 3 1 . 6 1 5 s 2 + 0 . 5 3 5 1 ; 4 0 1 ; ( 1 3 0 )
, 0 " R u ( n . p ) 1 0 V 1 8 . 5 8 1 8 m i n 7 . 2 + 1 . 0 130
1 0 5 R h ( n , p ) 1 0 3 R u 100 3 9 . 5 d 1 6 . 9 + 1 . 5 189
1 M P d ( n . p ) m « I l h 1 0 . 9 7 42 8 2 . 7 • 8 3 4 6 ; ( 2 2 1 )
1 0 4 - H h 4 . 4 min 3 1 + 6 346
1 0 5 P d ( n , p ) 1 0 5 l W 2 2 . 2 3 3 5 . 5 h [ 3 7 . 6 + 2 . 0 ]
[ 5 0 + 6 J
¡ Í 8 9 ; 2 2 l ]
[ 3 4 6 ; 4 0 1 ]
1 0 5 - R h 45 s 2 3 + 8 401
1 0 6 P d ( „ , p ) 1 0 6 « R h 2 7 . 3 3 30 s 16 + 4
16 + 4
1 8 9
346
1 0 6 » R h 2 . 2 h 6 . 0 + 2
9 + 3
189
3 4 6 ; 401
1 0 e P d ( „ , p ) 1 0 8 R h 2 6 . 7 1 17 8 8 . 3 + 1 . 5
9 + 2
189
401
1 0 7 A g ( n , p ) 1 0 7 » P d 5 1 . 3 5 21 El 15 + 2 4 0 1
1 0 % ( n , p ) 1 0 9 P d 4 8 . 6 5 1 3 . 5 h 11 + 2
13 + 2
15 + 2
1 8 ; 3 4 7 ; 348
1 8 ; 329
1 8 ; 3 4 5 ; ( 2 1 4 ; 4 0 1 )
1 0 6 C d ( n , p ) 1 0 6 A g 1.215 2 4 . 0 min 8 0 + 20
102 + 16
4 3 ; 3 4 8 ; 446
4 3
1 1 0 C d ( n , p ) 1 1 0 A g 1 2 . 3 9 2 4 . 4 8 27
8 + 2
324
401
100
TABLE III (cont. )
BORMANN et a l .
I so topic Reac t ion abundance T
(%)
C r o s s - s e c t i o n s (mb)
14. 1 MeV 14. 5 MeV 14. 9 MeV
15 • 4 ( 2 2 . 5 + 1 . 1
[ 2 8 . 7 + 1 . 4 ]
[31 i 1 . 5 )
3 2 4 ; 348 ; 4 4 6 ; 118]
[ 18 )
CIS)
1 1 2 C d ( „ , p ) 1 1 2 A g 2 4 , 0 7 3 .2 h 1 1 i 3
15 + 1 . 3
3 2 4 ; 3 4 8 ; 446
189
" W . p ) " ' * « 1 2 . 2 6 5 . 3 h 8 + 2 3 2 4 ; 3 4 8 ; 446 3)
" W . p ) 1 " * « 2 8 . 8 6 5 . 2 s 3 + 1 . 6 401
1 1 6 C d ( n , p ) l l 6 A g 7 . 5 8 2 . 5 min [ 0 . 2 + 0 . 1 )
5 . 4 + 1 . 5
[ 3 2 4 ]
67
" ' i n i n . p ) " ' « « 9 5 . 7 2 5 3 . 5 h 17 + 3
1 5 . 5 + 4 . 0
1 2 . 5 + 1 . 5
3 4 8 ; ( 4 4 8 )
329
345
" 5 - C d 4 3 d 3 . 5 + 0 . 2
7 . 7 + 1 . 2
187
345
1 1 2 S n ( n , p ) 1 1 2 « I „ 0 . 9 6 1 4 . 4 min [ 3 5 )
13 + 0 . 7
[ 4 4 7 ]
187
, 1 2 n l n 2 1 min 9 + 2 6 7 ; 187
» " s n t n . p ) 1 1 * - ! » 0 . 3 5 4 . 5 0 h 3 . 5 + 0 . 2 187
1 , 6 S n < n l P ) " 6 « I , , 1 4 . 3 0 14 8 11 + 4 5 1
1 1 6 - I „ 5 4 . 0 m i n 8 + 1
11 + 2
1 8 7 ; 189; (67)
51
1 1 7 S n ( n , p ) 1 1 7 « I n 7 . 6 1 38 min 9 . 2 + 2 . 7
9 . 8 + 1 . 6
1 3 . 6 + 3
442
1 8 9 ; ( 1 8 7 )
5 0 , 134
1 1 7 " l n 1 . 1 5 h 2 . 8 + 0 . 8
4 . 7 + 1 . 0
5 . 1 + 1 . 6
442
1 8 7 ; 189
5 1 ; ( 1 3 4 )
1 1 8 S n ( n , p ) 1 1 8 « I n C B 2 4 . 0 3 5 e 0 . 4 + 0 . 2 5 1
1 1 8 - I n < e 4 . 4 min 11 + 2
[ 5 . 8 + 0 . 2 )
6 7 ; 187
[ 5 1 )
3) Association of measured 1 \ ¡ 2 not known.
® Checking of decay scheme is urgently recommended.
FAST NEUTRON C R O S S - S E C T I O N S 1 0 1
T A B L E I (con t . )
I so topic abundance
(%)
C r o s s - s e c t i o n s (mb)
Reac t ion Iso topic
abundance (%)
T 1 14. 1 MeV 14. 5 MeV 14 .9 MeV R e f e r e n c e s
1 1 9 S n ( n , p ) 1 1 9 « I n 8 . 5 8 2 . 3 min 2 . 6 + 0 . 3 4 . 3 • 1 . 5
1 8 7 ; ( 6 7 ) 51
1 1 9 ™ l n 18 m i n 2 . 6 + 0 . 3 4 . 3 + 1 . 4
1 8 7 ; ( 6 7 )
5>
1 2 0 S n ( n , p ) 1 2 0 I „ 3 2 . 8 5 44 s 4 + 1 2 . 8 + 1 . 0
6 7 ; 4 0 0
2 3 9
1 2 1 S b ( n , p ) 1 2 1 g S n 5 7 . 2 5 27 h 2 . 2 + 0 . 4 3 4 6
, 2 5 S b ( „ . p ) 1 2 ' « S n 4 2 . 7 5 129 d 1 . 8 + 0 . 4 346
1 2 3 » S „ 4 0 min 2 . 8 + 0 . 9 346
1 2 2 T e ( n , p ) 1 2 2 S b 2 . 4 6 2 . 6 8 d 14 + 2 346
1 2 " T e ( n , p ) 1 2 , , S s b 4 . 6 1 6 0 . 3 d 9 + 2 5 1 ; 346
1 2 * » S b 1 . 6 min < 0 . 6 346
1 2 6 T e ( „ , p ) 1 2 6 5 S b 1 8 . 7 1 1 2 . 4 d 1 . 6 + 0 . 3 3 4 6
1 2 6 » S b 19 m i n 4 . 5 + 0 . 6 3 4 6 ; ( 1 4 6 )
1 2 8 T e ( n , p ) 1 2 8 e S b 3 1 . 7 9 9 . 3 2 h 1 . 3 + 0 . 3 1 4 8 ; 3 4 6 ; ( 5 1 )
1 2 8 ° S b 10 min 1 . 0 + 0 . 2 1 4 8 ; 3 4 6 ; ( 5 1 ) ; f l 3 4 )
1 3 0 T e ( n , p ) 1 3 0 « S b ® 3 4 . 4 8 6 min 0 . 5 5 ± 0 . 1 8 3 4 6 ; (51]; (134)
37 min 0 . 6 1 • 0 . 0 9 3 4 6 ; ( 5 1 )
1 2 7 I ( n , p ) 1 2 7 ® T . 100 9 . 4 h 1 1 . 7 + 1 . 2 9 . 8 + 1 . 0 [ 3 . 6 + 0 . 4 }
329 ; ( 2 2 1 )
2 5 2 ; [ 3 4 5 ]
1 2 7 " T e 109 d 5 . 3 + 1 345
1 3 ° X e ( n , p > 1 3 0 I 4 . 0 8 1 2 . 3 h 6 . 7 + 0 . 8 175
1 3 1 X e ( n , p ) 1 3 1 I 2 1 . 1 8 8 . 0 5 d 5 . ) i « . 6 175
1 5 2 X e ( n , p ) 1 3 0 I 2 6 . 8 9 2 . 4 h 2 . 5 + 0 . 3 175
^ " x e i n . p ) 1 3 4 ! 1 0 . 4 4 52 min 2.2 + 0 . 5 175
1 3 3 C s ( n , P ) 1 3 3 « X e * 100 5 . 6 5 d 5 . 7 0 + 2 . 3 5 2 5 3 ; (180)
1 3 3 m X e 2 . 2 d 4 . 8 0 + 0 . 7 5 253
102 BORMANN et a l .
TABLE III (cont. )
C r o s s - s e c t i o n s (mb)
Reac t ion abundance (%>
T i 14. 1 MeV 14. 5 MeV 14. 9 MeV R e f e r e n c e s
1 3 6 t e ( n , p ) 1 3 6 C s 7 . S I 1 2 . 9 h 4 3 + 10
3 8 . 3 * 3 . 8 4 9 + 1 0
3 4 8 3 2 9
317 ( 3 4 0 )
1 3 S B a ( n , p ) 1 5 8 0 s 7 1 . 6 6 3 2 . 3 min 2 . 3 + 0 . 3 3 * 0 . 5
2 . 4 + 0 . 4
3 4 8 1 8 9 ; 329 3 1 7 ; 340
1 3 9 L a ( n , p ) 1 3 9 B a 9 9 . 9 1 1 8 2 . 9 min 5 + 1
5 ; 1
4 . 7 + 0 . 5
3 1 7 ; 406 2 2 1 ; 4 0 0 ; ( 3 2 9 ) 1 3 2 ; 3 1 7 ; 3 4 0
" ° C e ( n . P ) l " 0 L a 8 8 . 4 8 4 0 . 2 h 1 1 + 2
9 . 5 + 2 . 5 8 + 2
348
1 8 9 ; 329 1 3 2 ; 317
142„ , , 1 4 2 , Ce (n , p ) La 1 1 . 0 7 9 2 . 5 min 7 + 2 9 . 5 + 0 . 9
8 + 2
3 4 8 329
3 1 7 ; 401
141 , , 1 4 1 . P r ( n , p ) Ce 100 3 2 . 5 d 4 . 5 * 1 . 0 4 . 5 + 1 0
4 00
3 1 7 ; ( 1 3 2 )
" W . p j ^ P r 2 7 . 1 1 1 9 . 2 h 13 + 3 , 1 3 . 5 + 2 . 7
348
3 2 9
" ' N d t n . p í ^ ' p r 1 2 . 1 7 1 3 . 6 d 1 1 + 2
1 1 . 5 + 2 . 3
3 4 8 329
" S d f n . p j ' ^ P r 5 . 7 3 1 . 9 8 min 3 . 5 + 1 3 . 5 + 0 . 8
348 317
" « S m í n . p ) " 8 ^ 1 1 . 2 4 5 ' .4 d 1 4 . 3 + 2 . 3 336
4 1 . 8 d 1 8 . 8 + 4 . 4 336
1 5 2 S m ( n , p ) 1 5 2 P n i 2 6 . 7 2 6 m i n 3 . 7 + 0 . 2 3 . 7 + 0 . 2
4 0 0 3 1 6 ; 317
^ ^ . ( n . p ) 1 5 ^ . 2 2 . 7 1 1 . 6 min 3 . 5 + 0 2 3 1 6 ; 317
l 5 3 E u ( n , p ) 1 5 3 S « 5 2 . 18 4 6 . 8 h 7 . 4 + 0 . 7 3 2 9
1 5 6Q d ( n , p ) 1 5 6 E u 2 0 . 4 7 1 5 . 1 d < 15 132
l 5 7 G d ( n , p ) 1 5 7 E » 1 5 . 6 8 1 5 . 1 h 1 1 . 3 • 1 . 7 3 2 9
FAST NEUTRON CROSS-SECTIONS 103
T A B L E III (cont . )
Isotopic abundance
(%)
C r o s s - s ec t i ons (mb)
Reaction Isotopic
abundance (%)
Tj 14. 1 MeV 14.5 MeV 14. 9 MeV R e f e r e n c e s
1 5 8 G d ( n , p ) 1 5 8 E u 2 4 . 8 7 46 min 2 . 6 + 0 . 6 132
1 5 9 T b ( „ , p ) 1 5 9 G d 100 1 8 . 5 6 h [15 . 8 t 2 . 5 ]
3 . 4 + 1 . 5
[336 J 4 9 ; 132
1 6 0 D y ( n , p ) l 6 0 T b 2 . 2 9 4 7 2 . 1 d < 31 132
' « D y f n . p ) 1 6 5 " ™ 2 4 . 9 7 7 min 3 + 1 317
l 6 5 H o ( n , p ) l 6 5 ê D y t
l65"DyT
100 2 . 3 5 h
1 . 3 min
[4 0
< 1
+ 1 0 ] [ m ]
111
1 6 7 E r ( n , p ) l 6 7 H o 2 2 . 9 4 3 . 1 h 4 * 1 317; 401
l 6 8 E r ( n , p ) l 6 8 H o 2 7 . 0 7 3 . 3 min 2 . 5 + 1 . 0 317
1 7 0 E r ( n , p ) 1 7 0 H o 1 4 . 8 8 45 s 1 . 8 • 0 . 5 317
1 7 5 L u ( n , p ) 1 7 ^ Y b 9 7 . 4 1 4 . 2 d 3 . 4 2 • 0 . 5 2 329
1 7 8 H f ( „ , p ) 1 7 8 « L u ®
1 7 8 " L U
2 7 . 1 30 min
20 min
1 . 7 2 + 0 . 1 7
1 . 0 2 • 0 . 1 0
334
334
1 8 1 T a ( n , p ) 1 8 1 H f 9 9 . 9 8 7 7 4 2 . 5 d 3 + 0 . 5 3 3 3 ; 400
1 8 2 W ( n , p ) 1 8 2 T a 2 6 . 4 1 115 d 2 . 3 • 0 . 2 3 449
1 8 ' v ( „ , p ) 1 8 ' T a 1 4 . 4 0 5 . 0 d 2 . 6 • 0 . 3 449
1 8 \ ( n , p ) 1 8 S a 3 0 . 6 4 8 . 7 h 4 . 8 • 1 . 0
[ 1 4 » 4 ] 3291 333 ) (400)
[ 2 4 0 ]
1 8 6 K ( n , p ) 1 8 6 T a 2 8 . 4 1 10 m i n 2 . 3 * 0 . 5 1 7 ; 3 2 9 ; 3 3 3 ; ( 2 4 0 )
1 6 7 R e ( n , p ) 1 8 7 K 6 2 . 9 3 2 3 . 8 h 3 . 9 + 0 . 4 329
1 8 8 0 s ( n , p ) 1 8 8 R e 1 3 . 3 1 6 . 8 h 7 . 1 1 8 . 7 • 1 . 3
406
216
1 9 0 0 s < n , p ) 1 9 0 " l l e 2 6 . 4 2 . 8 h 2 . 0 • 0 . 5 406
104
TABLE III (cont. )
BORMANN e t a l .
I so topic Reac t ion abundance T,
(%)
C r o s s - s e c t i o n s (rab)
14. 1 MeV 14. 5 MeV 14. 9 MeV R e f e r e n c e s
1 9 3 l r ( n , p ) 1 9 , 0 s 6 2 . 7 3 1 h 2 . 7 • 0 . 6
( n , p ) 1 9 ^ I r ® T 3 3 . 8 4 . 2 h Í 2 . 9 • 0 . 3 ) [ 3 2 9 ]
1 9 6 P t ( n , p ) 1 9 6 I r 2 5 . 3 1 . 4 h 1 . 6 8 • 0 . 2 5 4 5 0
1 . 1 • 0 . 2 135
1 9 7 A u ( n , p ) 1 9 7 P t 100 18 h 2 . 0 t l 1 8 ; ( 2 9 3 )
2 . 3 ¿ 0 . 2 1 8 ; 329
2 . 4 -f 0 . 1 18
1 9 S B g ( n , p ) 1 9 8 A u 1 0 . 0 2 2 . 7 0 d 4 . 7 • 0 . 3 294
4 . 5 • 0 . 5 135
1 9 9 H g ( n , p ) 1 9 9 A u 1 6 . 8 4 3 . 1 5 d 4 . 6 + 0 . 6
2 . 3 + 0 . 3
294
135
2 0 0 H g ( n l P ) 2 0 0 A u 2 3 . 1 3 4 8 . 4 min < 12
3 . 6 3 • O .36
294
3 2 9
2 0 1 H g ( „ , p ) 2 0 1 A U 1 3 . 2 2 26 min 1 . 5 i 0 . 7
2 . 1 ± 0 . 3
294
3 2 9
2 0 ' T l ( n , p ) 2 0 3 H g 2 9 . 5 0 4 6 . 9 d [ 3 0 • 10 ) [ 2 4 0 ]
2 0 5 T l ( n , p ) 2 ° 5 H g 7 0 . 5 0 5 . 5 min 3 • 1 . 6
3 ± 0 . 3
2 2 1 ;
2 4 0
( 1 3 5 ; 3 2 9 )
2 0 8 P b ( n , p ) 2 0 8 T l 5 2 . 3 3 . 1 0 min 0 . 4 6 » 0 . 0 6 f l I O
1 3 5 ; [ 2 2 1 ; 4 0 0 )
2 ° 9 B i ( n , p ) 2 0 9 P b 100 3 . 3 0 h 1 . 3 • 0 . 3
0 . 7 5 + 0 . 3 0
3 2 9
2 1 4 ; 2 3 8 ; 329
2 5 5 u ( n , p ) 2 ' 5 p a 0 . 7 2 0 5 2 4 . 4 min 1 . 8 6 • 0 . 3 8 3 2 9
^ N p t n . p ) 2 ' ^ 6.75 d 1 .3 i 0 . 3 329
2 3 8 U(n ,p) Z ' 8 Pa 99.2739 2 .3 m i n 1 .5 i 0 .4 328
FAST NEUTRON CROSS-SECTIONS 105
T A B L E II. 1 4 - M e V ( n , a ) C R O S S - S E C T I O N S
React ion Isotopic
abundance (%)
C r o s s - s e c t i o n s (mb)
T j 14. 1 MeV 14. 5 MeV 14. 9 MeV R e f e r e n c e s
9 Be(n,0O) 6 He 100 0 . 8 s 1 0 + 1 3 9 0
1 1 B ( n , « . ) 8 L x 8 0 . 3 9 0 . 8 4 s *°30 3 1 + 6
389 13
1 9 F < n , 0 t ) 1 6 N 100 7 . 1 s 1 5 + 5 26 + 6
236 159 ; 351
2 3 N a ( n , d , ) 2 0 F 100 1 1 . 2 s 150 + 20 150 + 20
2 3 6 ; 322; 344 ; 386 6 5 ; 322 ; ( 2 1 4 )
2 6 M g ( n , o Ü 2 3 N e 1 1 . 1 7 38 8 84 + 10 77 + 8
72 + 10
3 9 ; 3 9 ; 3 9 ; 225 ; 351
2 7 A l ( n , « , ) 2 * g N a *
2,™Na
100
100
1 5 . 0 5 h 1 2 0 . 5 + 2 116 + 3
111 + 4
20 ms 6 5 + 6
8 3 ; 124; 196; 309 ; 3 9 3 ; ( 9 3 ) 18 ; 56; 114 ; 116 ; 141; 196 ; 2 2 3 ; 286 ; 3 0 9 ; 3 2 1 ; ( 3 8 2 ) ; 1 8 ; 36; 5 6 ; 9 3 ; 114 ; 155 ; 196 ; 205; 2 2 3 ; 2 3 8 ; 276 ; 3 0 9 ; ( 3 8 2 ) ; ( 3 8 3 ) ; 384
Î ° S 1 3 . 0 9 9 . 4 6 min 70 + 10
[«• 150]
261 ; 361 ; 381 ; (221) [ 2 2 5 ; 3 3 8 ]
5 1 P ( n , t t ) 2 8 A l 100 2 . 3 min 119 + 16 118 + 15
115 + 12
35 3 5 ; 114; ( 2 3 2 ) 3 5 ; 114; ( 1 2 8 ) ; ( 1 5 9 ) ; ( 2 2 5 )
3 1 , S i ( n , o O ) 3 1 S i 4 . 2 2 2 . 6 2 h 126 + 7 138 + 35
163 + 15
8 ; 2 2 1 ; 2 2 5 ; 338
5 5 C l ( n , í t ) 5 2 P 7 5 . 5 3 1 4 . 3 d 100 + 20 117 + 15
122 + 20
348 2 1 6 ; 380 275
3 7 C 1 (n ,cC)3J,P 2 4 . 4 7 1 2 . 4 8 120 + 13 112 + 12
90 + 10
1 1
i ; ( 2 7 5 ) ; ( 3 5 1 )
" ° A r ( n X ) 3 7 S 9 9 . 6 5 . 1 m i n 13 + 1 . 5 10 + 1 . 5
10 + 1 . 5
2 6 9 ; ( 3 2 4 ) 3 7 6 ; 377 3 7 4 ; ( 3 7 9 )
* ra decays with 100% to g (T®/2 » t J \ 2 ) .
1 0 6 BORMANN e t a l .
T A B L E II (cont . )
I so topic abundance
(%)
C r o s s - s e c t i o n s (mb)
Reac t ion Iso topic
abundance (%)
T i 14. 1 MeV 14. 5 MeV 14. 9 MeV R e f e r e n c e s
" K i n , « . ) 5 6 « 9 3 . 1 0 3. 1 X 10 5 yr 84 • 12 34
" K ( n , * ) 3 B C l 6 . 8 8 3 7 . 3 min 46 * 6
39 + 8
31 5
3 4 0
2 2 1 ;
4 9 ;
232
2 2 5 ; 3 3 8 ; 340
" " c a f n X J ^ A r 2 . 0 6 1 . 8 3 h 35 i 5
35 i 8
35 + 6
295
232
1 3 8 ; 3 3 5 ; ( 3 3 8 ) ; ( 3 4 1 ) ;
* 5 S C ( „ , « . ) ' 2 K 100 1 2 . 3 6 h 55 • 2 . 8
56 + 3
54 + 6
18
18
1 8 ; 49 ; 2 1 4 ; 340
4 8 T i ( n > 0 t ) * 5 C a 7 3 . 9 4 165 a 39 • 6
23 + 6
3 2 4 ;
345
5 ° T l ( n , i ( , ) " c a 5 . 3 4 4 . 5 4 d 9 . 4 + 1 . 5
9 . 5 + 2
10 + 2
324
1 3 9 ;
345
375
S ' v f n . O ^ S o 9 9 . 7 6 4 4 . 1 h 15 + 2
17 + 3
19 + 4
7 1 ;
1 3 9 ;
4 9 ;
307
307
8 2 ; 345
5 W , * ) 5 2 V 100 3 . 7 5 min 3 2 + 5
3 2 + 5
32 + 5
37
3 7 ;
3 7 ;
1 1 4 ; 2 3 2 ; 311
3 7 0 ; 3 9 7 ; ( 3 3 8 ) ; ( 3 7 2 )
5 4 F e ( n , < , ) 5 1 C r 5 . 8 2 2 7 . 8 d 100 • 20
98 + 15
96 10
8 0 ;
7 9 ;
8 0
2 4 1 ; 273
3 6 3 ;
5 8 F e ( n , o t ) 5 5 C r 0 . 3 3 3 . 6 min 21 . 5 + 2 65
5 9 C o ( n , o 0 5 6 M n 100 2 . 5 7 h 3 0 » ¡
30 + 2
29 + 3
3 2 ;
1 8 4 ;
1 1 4 ;
367
38 ; 114 ; 1 8 4 ; 2 7 3 ; 343
2 7 3 ; 311
1 8 4 ; 2 7 3 ; 3 2 8 ; 3 4 0 ;
5 8 N l ( n , o C ) 5 5 F e 6 7 . 8 8 2 . 6 y r 125 • 16 3 9 2
6 2 N i ( n , ¿ ) 5 9 F e 3 . 6 6 45 d 22 + 3 . 5
17 + 4
324
3 4 0
FAST NEUTRON CROSS-SECTIONS 107
T A B L E III (cont . )
I so topic ibundance
(%>
C r o s s - s e c t i o n s (mb)
Reac t ion i I so topic
ibundance (%>
T t 14. 1 MeV 14.5 MeV 14. 9 MeV R e f e r e n c e s
6 l , N i ( n A , ) 6 l F c 1 . 0 8 6 . 1 min 5 . 2 • 1 . 2 3 4 0
6 ' c u ( n , 0 C ) 6 ° S c o
6 0 m C o
69 . 0 9 5.26 y r
1 0 . 5 min
3 9 . 1 ± 2 . 7
35.71 2.5 3 2 . 7 + 2 . 5
23 i 3
2 2 7 ; ( 3 7 8 )
2 2 7 ;
2 2 7 ; 3 6 9 : ( 1 5 9 ) ; ( 3 9 8 )
3 6 9
6 5 C u ( n l C ( ) 6 2 « C o
62™Co
3 0 . 9 1 1 3 . 9 min
1 . 5 min
4 . 8 + 1 . 4
C20 • 10) 10 + 5
1 . 9 + 0 . 6
101 ;
[ 3 5 6 )
4 9 ; 1 5 9 ; (368) 4 9
6 8 Z n ( n , o ( . ) 6 5 N i 1 8 . 5 7 2 . 5 6 h 7 . 6 + 0 . 8
9 » 1
1 0 + 1
3 5 7
2 6 1 ; 361
3 6 5 ; ( 4 9 ) ; ( 3 6 7 )
7 0 Z n ( n , < ¿ ) 6 7 N i 0 . 6 2 50 s 7 . 8 + 2 . 2 366
6 9 G a ( n , ö C ) 6 6 C u 6 0 . 4 5 . 1 min 18 + 2 365
7 1 G a ( n , í C ) 6 S C u t 3 9 . 6 3 0 s [ 6 0 + 4 ) [ 3 5 1 )
7 2 G e ( n , d . ) 6 9 g Z n
6 9 m Z n
2 7 . 4 3 55 min
1 3 . 9 h
7 • 1 . 5
8 + 1 . 5
3 2 1 ; 365 321, 365
7 ' 1 G e ( n , í t ) 7 1 g Z n
1 1 m Z n
3 6 . 5 4 2 . 4 min
4 h
[ 1 0 + 1 . 5 )
3 . 3 2 ± 0.33
[ 2 . 8 + 0 . 6 )
3 . 3 + 0 . 5
[ 1 5 4 ) ;
[ 3 6 5 )
3 2 1
3 6 5
7 5 A 8 ( n , o ü 7 2 G a 100 1 4 . 1 h 12 » 2
12 + 2 11 + 2 . 5
1 8 ; 4 1 ; 1 0 1 ; 250
1 8 ; 358
1 8 ; 4 1 ; 4 9 ; 2 4 3 ; 303
7 8 S e ( n , 4 ) 7 5 S G e t
7 3 n G e
2 3 . 5 2 83 min
48 s
[ 7 + 1 )
7 . 6 + 0 . 9
[ 3 0 3 ; 3 6 3 ) ; ( 1 5 4 ) ; ( 3 6 4 )
364
8 0 S e ( n , o í , ) 7 7 g G e
7 7 m G e
4 9 . 8 2 1 1 . 3 h
54 s
6 + 2
6 + 2
3 6 4 ; ( 1 5 3 ) ; (154); ( 3 0 3 )
364
7 9 B r ( n , ¿ ) 7 6 A s 5 0 . 5 4 2 6 . 4 h 14 + 5
16 • 6 1 5 + 6
3 5 ; 343
3 5 ; 3 5 8 ; 360 4 9 ; 1 2 8 ; 209; 3 0 3 ; 362
f No value recommended.
108 BORMANN e t a l .
TABLE III (cont. )
Isotopic abundance
(%>
C r o s s - s e c t i o n s (mb)
14. 1 MeV 14.5 MeV 14. 9 MeV R e f e r e n c e s
f l 9 + 23 [ 3 5 8 ] 6 + 3 4 9 ; 128 ; 3 0 3 ; 3 6 2 ; ( 2 0 9 ) ;
( 3 6 3 )
8 6 K r ( n , o t ) 8 : 5 g S c ® 1 7 . 3 7 23 min 1 7 5 ; 361
8 5 R b ( n , « . ) 8 2 B r 7 1 . 1 5 * 3 5 . 4 h 7 + 2
[ 4 . 9 + 0 . 5 ]
4 1 ; ( 2 8 6 ) [ 3 5 8 ] 4 1 ; 340
8 7 R b ( n , < . ) 8 , , g B r 2 7 . 8 5 # 3 1 . 8 min
6 min 2 . 1 + 0 . 4
1 . 9 + 0 . 4
3 6 0 ; ( 3 5 8 ) 3 4 0 3 4 0
8 S r ( n , « 0 6 5 ' ° K r t 8 2 . 5 6 4 . 4 h [ 7 5 + 3 0 ] [221 ; 286]
8 9 Y ( n , s ( , ) e 6 g R b * 100 1 8 . 7 d 5 + 0 . 5
5 + 1 1 8 ; ( 2 9 3 ) 18
5 . 5 + 1 1 8 ; 3 4 0 ; ( 2 8 6 ) 0 . 9 1 + 0 . 4 5 49
9 0 Z r ( n , o i . ) 8 7 ° S r 5 1 . 4 6 2 . 8 h 3 . 2 + 0 . 3
2 . 8 + 0 . 4 2 . 8 + 0 . 3
2 6 2 ; 3 5 5 ; 357 3 5 6 ; ( 3 3 3 )
4 9 ; 2 4 3 ; 3 5 5 ; ( 1 4 9 )
9 2 Z r ( n , oC) 8 9 Sr 1 7 . 1 1 5 0 . 5 d 1 0 + 1 1 8 ; 3 4 5 ; 348 1 6 ; 345
9 l * Z r ( n , o U 9 1 S r 1 7 . 4 0 9 . 7 h 4 . 8 + 1
5 . 5 + 1 . 5
2 6 2 ; 3 4 8 ; 355 1 8 9 ; 3 3 3 ; 343 4 9 ; 3 4 5 ; 355
9 6 Z r ( n , » C ) 9 3 S r 2 . 8 8 min 3 + 1 2 6 2 ; 3 4 8 ; ( 3 3 3 ) 4 9 ; 3 4 5 ; 354
9 5 N b ( n , < ^ 9 0 g Y * 100 6 4 . 1 h 9 + 1
3 . 1 9 h 5 . 5 + 0 . 5
1 8 ; 2 9 3 ; 343 1 8 ; 2 9 3 ; 353 1 8 ; 3 9 1 ; (345) 189 4 9 ; 1 4 9 ; 3 5 2 ; ( 3 4 5 )
92 Mo ( n , r f . ) 8 9 g Z r ® 1 5 . 8 4 7 8 . 4 h
20 + 8 2 . 5 + 0 . 3
189 4 8 ; 92 1 3 4 ; ( 1 8 9 )
® Checking of decay scheme is urgently recommended. # Isotopic abundance not accurately known.
FAST NEUTRON CROSS-SECTIONS 109
TABLE III (cont. )
I so top ic Reac t ion abundance
(%)
C r o s s - s e c t i o n s (mb) I so top ic Reac t ion abundance
(%) T, i 14. 1 MeV 14. 5 MeV 14. 9 MeV R e f e r e n c e s
9 8 M o ( n , o 0 9 5 Z r 2 3 . 7 8 6 5 . 5 d 8 . 1 + 1 189
1 0 0 M o ( n , , O 9 7 Z r 9 . 6 3 1 6 . 8 h 25 + 15 [14 + 6 )
9 2 [ 2 8 6 ]
9 9 T c < n , o 0 9 6 N b 2 3 . 4 h 2 . 0 2 + 0 . 2 2 122
" " i M n ^ ) 1 0 1 ! - ! » 1 8 . 5 8 1 4 . 6 min 2 . 6 + 1 1 3 0
" " R h í n , ^ ) 1 0 0 ^ 100 17 s 11 3 5 0 ; ( 3 5 1 )
1 0 6 P d ( „ , ^ ) 1 0 ' R u 2 7 . 3 3 3 9 . 5 d 5 . 6 + 0 . 7 189
1 0 8 P d ( n ^ ) 1 0 5 H u 2 6 . 7 1 4 . 4 h 2 . 6 + 0 . 4 2 . 6 + 0 . 4
2 . 6 + 0 . 5
3 4 3 1 8 9 ; 333 346
U 0 P 1 < n „ < , ) 1 0 7 R U 1 1 . 8 1 4 . 2 min 1 3 . 8 + 6 . 2 2 2 1
1 O 9 A g ( n l 0 l ) l O 6 R h 4 8 . 6 5 * 2 . 2 h 12 + 3 2 1 4 ; ( 1 6 4 )
1 0 6 C d ( „ , i t ) 1 0 3 P d t 1 . 2 2 17 d C l 0 0 + 4 0 ] [ 3 2 4 ]
1 1 2 C d ( „ , i t ) 1 0 9 P d 2 4 . 0 7 14 h 2 . 6 + 0 . 3
3 . 1 + 0 . 3 3 . 3 + 0 . 2
1 8 ; 3 2 4 ; ( 3 4 8 ) 1 8 ; 18
1 1 4 C d ( „ , o < . ) l l l g P d ® 2 8 . 8 6 22 min 0 . 5 + 0 . 1 3 2 4 ; 3 4 7 ; 348 l l l » p d ©
5 . 5 h 0 . 1 5 + 0 . 0 5 3 2 4 ; 347
1 1 5 I n ( n , i t ) 1 1 2 A g 9 5 . 7 2 3 . 2 h 2 . 8 + 0 . 5 2 . 6 + 0 . 3
2 1 6 ; 3 2 9 ; ( 3 2 4 ) 345
1 1 8 S n ( n , « . ) 1 1 5 g C d 2 4 . 0 3 5 3 . 5 h
4 3 d
0 . 9 5 ± 0 . 0 6 1 . 1 + 0 . 0 8
1 . 1 5 + 0 . 1
0 . 3 + 0 . 1
18 18
1 8 ; 345
345
1 2 " T e ( n , ^ ) 1 2 1 g S „ 4 . 6 1 27 h 0 . 7 6 + 0 . 1 5 3 4 6 ; ( 1 9 8 )
1 2 6 T e ( n , « , ) 1 2 3 g S n 1 8 . 7 1 129 d 0 . 8 + 0 . 1 148 1 2 * " s „ 4 0 min 0 . 8 + 0 . 4 1 9 8 ; 346
110 BORMANN e t a l .
TABLE III (cont. )
C r o s s - s e c t i o n s (mb)
Reac t ion abundance (%>
T¡ 14. 1 MeV 14. 5 MeV 14. 9 MeV R e f e r e n c e s
1 2 8 T e ( „ , » ü 1 2 5 e S n f f i 3 1 . 7 9 9 4 d 0 53 + 0 . 1 1 324
1 2 5 " s n ® 9 7 m i n 0 45 + 0 . 1 1 4 8 : 198
1 5 0 T e ( n , < 0 1 ! " « S n ® 3 4 . 4 8 * 2 1 h 0 39 + 0 . 0 8 3 2 9 ; 3 4 6 ; ( 1 9 8 )
1 2 ' l ( n , « . ) 1 2 , , g S b ® 100 6 0 . 3 d 1 . 5 + 0 . 5 1 3 2 ; 3 4 4 ; 345
1 M " s b 2 0 min 1 . 5 + 0 . 2 2 5 2 ;
» " c . f n , * ) 1 3 0 ! 100 1 2 . 3 h 1 . 0 + 0 . 3
1 . 9 i 0 . 3
2 + 0 . 5
3 4 2 ; 343
1 8 9 ; 329
1 3 2 ; 3 4 0 ; ( 4 9 )
l 5 e B a ( n , < < , ) 1 3 5 g X e * 7 1 . 6 6 9 . 1 5 h 3 . 6 • 10
[ 2 . 0 + 0 . 2 )
9 1 ; ( 1 1 1 )
[ 1 8 9 ]
1 3 5 » X e 1 5 . 6 min 0 . 5 5 + 0 . 0 5 1 8 9 ; ( m )
1 5 9 L a ( „ , < 0 1 5 6 C 9 9 . 9 1 1 2 . 9 d 2 . 0 + 1
1 . 4 5 + 1
3 2 9 ; 3 3 0
1 3 2 ; 317
8 8 . 4 8 2 . 5 5 m i n 1 2 . 1 • 1 . 1 5
11 + 1 . 1
1 0 . 5 + 1 . 1
39
3 9 ; 221
3 9 ; 3 1 7 ; ( 1 3 2 )
1 1 . 0 7 8 2 . 9 min 6 . 5 + 1
6 + 2
1 8 9 ; 329
3 1 7 ; 340
" 2 N d ( n , 0 1 3 9 g C e 2 7 . 1 1 140 d 1 0 + 2 3 1 7 ; ( 2 1 9 )
5 6 . 5 s 2 + 1 317
2 3 . 8 5 3 2 . 5 d 9 + 2
< 1 5 . 5
336
132
" ^ d i n . o Ü 1 " ^ ' 1 7 . 2 2 3 3 . 4 h [ 2 . 6 + 0 . 3 ]
[ 8 . 3 + 2 . 0 )
[ 3 2 9 ]
[ 3 1 7 ]
" « N d t n ^ O ^ ' c e 5 . 7 3 3 . 0 min 5 ± 1 317
3 . 0 9 2 . 5 h 11 3 3 9
1 5 2 S m ( n ^ ) 1 , , 9 N d 2 6 . 7 2 1 . 7 3 b 9 + 3 2 2 1 ; 317
1 5 " s . ( n , < < ) 1 5 1 N d 2 2 . 7 1 12 min 9 + 3 317
FAST NEUTRON CROSS-SECTIONS 111
T A B L E II (cont . )
Isotopic abundance
(%)
C r o s s - s e c t i o n s (mb)
Reaction Isotopic
abundance (%)
T! 14. 1 MeV 14. 5 MeV 14. 9 MeV R e f e r e n c e s
I S W n ^ - P . ® 1
4 7 . 8 2 4 1 . 8 d 1 9 . 1 ± 3 . 6 336
l " E u ( n ,oC)15°P- 5 2 . 1 8 2 . 7 H 9 + 2 338
« ^ ( n . Q Ü 1 5 ^ . 2 0 . 4 7 4 6 . 8 h 8 . 5 + 1 . 3 3 3 6 ; ( 3 2 9 )
^Bßi(n,<i)155Sm 2 4 . 8 7 2 2 . 4 min 2 . 4 + 0 . 4
2 . 1 8 * 0 . 5 2
336
132
1 6 0 G d ( n , O 1 5 7 S » 2 1 . 9 0 0 . 5 min 2 + 1 317
1 5 9 T b ( n „ ¿ ) 1 5 6 E u 100 1 5 . 1 d 2 . 2 + 0 . 5 330
l 6 2 D y ( n ^ ) 1 5 9 G d 2 5 . 5 3 1 8 . 5 6 h 3 . 5 6 + 0 . 3 6 329
l 6 V ( n , 0 Ü l 6 l G d 2 8 . 1 8 3 . 6 min fo.9j 6 * 1 . 5
[220J 132 ; 3 1 7 ; 338
1 6 5 H o ( n , « ¿ ) l 6 2 T b 100 7 . 5 min 1 . 2 • 0 . 4 336
168Er(n„Ol65SDyS ' 2 7 . 0 7 2 . 3 5 h 0 . 5 ± 0 . 2 317
l65»Dy 1 . 2 6 min 1 . 0 + 0 . 2 317
1 7 ° E r ( n , < ) l 6 7 D y 1 4 . 8 8 4 . 4 min 1 . 0 + 0 . 2 317
1 7 6 Y b < n „ ¿ ) 1 7 3 E r 1 2 . 7 3 12 min 0 . 2 + 0 . 0 5 337
1 7 8 H f ( n , < ¿ ) 1 7 5 Y b 2 7 . 1 4 4 . 2 d 2 . 1 + 0 . 2 1 4 1 ; 329
1 8 0 I . f ( n , o t ) 1 7 7 ï b 3 5 . 2 4 1 . 9 h 2 . 2 • 0 . 2 1 4 1 ;
1 8 1 T a ( n , « ü 1 7 8 g L u 9 9 . 9 9 30 min 0 . 5 i 0 . 3 C0.14 • 0 . 0 4 ]
333
[334J
1 7 8 » L u 20 min 1 . 2 • 0 . 2
Co.3 + 0 . 1 ]
333
C334J
1 8 6 W ( n , o t ) 1 8 3 H f t 2 8 . 4 1 6 3 min CO.85]
[ 2 . 5 ¿ 1)
C333] [ 2 4 0 ]
1 8 7 R e ( n , í ü 1 8 V 6 2 . 9 3 8 . 7 h 0 . 9 4 + 0 . I 5 329
1 9 O O s ( n > 0 í ) 1 8 7 W 2 6 . 4 2 3 . 8 h 0 . 5 i 0 . 1 2 1 6 ; 329
112
TABLE III (cont. )
BORMANN e t al .
C r o s s - s e c t i o n s ímb) Isotopic
abundance T, 14. 1 MeV 14. 5 MeV 1 (%)
1 9 1 I r ( n , o U 1 8 8 R e 3 7 . 3 1 6 . 8 h 2 . 4 3 + 0 . 3 329
1 9 " p t ( n , o 0 1 9 1 O s 3 2 . 9 15 d 1 . 2 6 + 0 . 2 5 329
1 9 6 P t ( n l 0 C ) 1 9 3 O 8 2 5 . 3 31 h 0 . 5 5 + 0 . 1 1 3 2 9
1 9 7 A u ( n , < ¿ ) 1 9 " l r 100 1 7 . 4 h 0, .27 • 0 . 0 2
0 . 3 5 * 0 . 0 2
0 . 4 5 + 0 . 02
18
18; 329
18
2 0 0 H g ( n , ^ ) 1 9 7 P t ® 2 3 . 1 3 18 h 0, . 2 + 0 . 1
1 . 7 7 0 . 4
294
329
2 0 2 H g ( n , < ) 1 9 9 P t 2 9 . 8 31 m i n 1 . 0 + 0 . 1 329
2 0 5 T l ( n , c C ) 2 0 0 A u 2 9 . 5 4 8 . 4 min 2 . 2 + 0 . 4 1 3 5 ; 331 ; 3 3 2 ; ( 3 2 9 )
2 0 5 T l ( n , c 0 2 o 2 A u 7 0 . 5 0 30 s 0 . 7 5 + 0 , .35 2 4 0
2 0 6 P t , ( n , o 0 2 ° ' n g 23. 6 4 6 . 9 d 2. .7 ± 0 . 0 4 324
2 0 8 P b ( n , c ( . ) 2 o 5 I I g 5 2 . 3 5 . 5 min 1 . 5 8 • 0 . 2 329
2 0 9 B i (n ¿ O 2 0 6 T l 100 4 . 3 min 1 ¿ 0 . 5 3 3 0 ; ( 3 2 9 )
2 3 0 T h ( n , < O 2 2 7 R a - 41 m i n 4 . 6 • 1 . 2 329
9 9 . 2 7 6 . 9 min [ l . 5 ± 0 . 3 } f o . 6 + 0. • 1 5 J
[ 3 2 9 1
[ 3 2 8 ]
FAST NEUTRON CROSS-SECTIONS
T A B L E III. 1 4 - M e V (n, 2n) C R O S S - S E C T I O N S
1 1 3
. . C r o s s - s e c t i o n s (mb) Isotopic
React ion abundance T, 14. 1 MeV 14. 5 MeV 14. 9 MeV R e f e r e n c e s (%)
l i ] N C n , 2 n ) 1 3 i J 9 9 . 6 3 3 7 9 . 9 6 m i n 6 . 1 ± 0.1» 3 7 ; K 7 ; 6 4 ; 7 8 j 1 2 2 ; ( 1 5 ) ; ( 1 0 3 )
7.0 Î 0.5 47; 78; 87; 88; 221; 257
8.2 - 0.6 78; l o i ; 128; 225
1 9 p(n ,2n) l 8 8p* 100 109.7 min 47 t 4
55+4
60 i 5
1 5 ; 37; 64; 78; 88; 216; 236; 282) 327; (47)
87; 221; 257; 258; 282; 319:
70; 78; 82; 205 ; 282; (307)
18m,, 138 1 10 ns 2.7 i 0 .3 5
23Na(n,2n)22Na 100 2.62 yr 28 ± 2 &3.B]
44 i 3
54 - 5
185; [2443 185
185; 205
2 7Al(n,2n)2 6 mAl 100 6.1 s < 0.17 84
31p (n ,2n) 3 0P 100 2.5 min 5.1 [12.43
10.9 i 0.8
10.0 i 1
& < 5 9 )
257
104; 127; 128) 159 ; 225; 247*466)
^ c i í n . a i í ^ S c i * 75.529 1.57 s t i . 7 * 0.3) f2.8 1 0.5] £6.0 i 0 .6) C7.3 í 13
[161) t2753 t i ) [2473
32. 0 min D .47 ± 1.56) C5.42 - 3.41)
15.6 i 2) C7 l E7.6 i 0 .7) Ci2 i 23
[2213 12573 [2753 £2273 Î1613 [165i 2483
39K(n,2n)388K 93.10 7.7 min 2.5 i 0 .3
3.5 1 0 .3
24; 37; 295; 464
232; 257; 464
0.95 s
5 .1 - 0.5
0.8 - 0 .2
37; 161; 165; 225 161
"1K(n,2n) ,« taK 6.88 291 - 23 na *¡ 1 36 i 16 5
"0Ca(n,2n)3 9Ca 96.97 0.88 s C8 i 2] 153)
^ C a t n . J n J ^ c a 0.185 1.54 d 900 - 108
920 Î 180
1070 i 360
295
139
138; (207)
* m decays with 100% to g ( T | ,2 > TJJ2)-t No value recommended. Note: Handwritten numbers 1) to 2 l ) refer to the List of comments which follows this table (page 129).
1 1 4 BORMANN e t a l .
T A B L E III (cont . )
Isotopic C r o s s - s e c t i o n s (mb)
Reaction abundance Tj 14. 1 MeV 14. 5 MeV 14. 9 MeV R e f e r e n c e s (%)
l (5Sc(n,2n)1, ' 'gSc 100 4.0 h 110 - 12 14; 61; 164, 246
182 - 15 I i ; 216
199 ±20 i l ; 19; 211; (165); (218) Ilm t
Sc 2.4 d 1 2 7 - 1 2 11; 216; (231)
119 - 12 I i ; 216; 257; (231)
155 - 15 i i ; 211; (231)
, 6 Ti(n ,a i ) 1 ' 5Ti 7.93 3.08 h 13.5 ¡ 1 38; 61; 216
30 í 2 246; 257; (87)
50 i 1 38; 82; 224; 238; 246
S O c r t n ^ ) 1 1 9 ! * 1.31 12 min 10 i 1 .5 I161
(26.4 - 2 .2 ] t257]
28 i 3 165; 211; 255; 287; 1611 (66)
5 2Cr(n,2n)5 1Cr 83.76 27.8 d 278 Î 20 13; 314
358 Î 25 13; 255
5 5 » i ( n , 2 n ) 5 V 100 303 d 855 i 60
890 í 60
850 - 60
27; 11; 223; 308; (126); (311)
223; 311
26; 205; 223
5 l W n , 2 n ) 5 3 ¡ W 5.82 8.5 min 10.5 i 1
15.5 i 1
9; 12; 59; i l l ; 2I1; (273)
12; 81; 87; H l ; 257;
5 3 V
2 2 - 2 144; (65); (95); (255) 5 3 V 2.5 min [0.81 î 0.15] C 5 5 ] ¿ )
91.66 2.6 y r 140 Í 9 0 311
"cotn .anjSSSco« 100 71 d 655 i 50
720 i 50
735 - 55
32; 10; 60; 69; 97; 126; 223; 305; 312; 313; (27); (112); (219)
69; 97; 223; 312; (112); (219); (311)
! l s r ! l : í l i ? í 3 1 2 : t l l 2 , ; C 1 5 5 1 : t 2 1 9 ) :
5&»Co 9.15 h 128
102 î 11
123 - 43
10; 97» (219); (367)
97; 311; (81); (219)
97; (219)
FAST NEUTRON CROSS-SECTIONS 115
TABLE III (cont. )
C r o s s - s e c t i o n s (mb) Isotopic
abundance T¡ 14. 1 MeV 14. 5 MeV 14. 9 MeV (%)
i 8Ni(n.2n)5 7Ni 67.88 36.0 h 21.5 - 2 391 85; 119! 222; 216; 165 ; (251)
31.0 i 2 .5 85; 87; 119; 222; 216; 257| 463;i65 ; (79); (221)
31.9 - 3 26; 39; 19; 85; 119; 222; 216; 465 ; (155); (287) ¡(367)
63Cu(n,2n)62Cu 69.09 9.76 min 480 i 20 33; 11; 71; 85t 88;93; 110; 119; 171; 183; 181; 228; 211; 259; 270; 323; 327; (61; 78| 109)
71; 871 93; 119; 184; 221; 228 ; 310; 110; (16; 78)
585 * 25 71; 76. 83; 85; 93; 119; 128; 181; 228; 255; 287; (78; 101; 225)
'5Cu(n,2n)61,Cu 30.91 12.8 h 913 * 50 35; 11; 85; 93! 110; 216; 217; 222; 211: 216; 271; 327; (78; 323!
956 - 50 35; 85; 87; 93; 216; 222; 216; 257; 258; 271; 311; (221)
975 - 50 36; 83: 85 : 95; 119; 222; 238;216; 255; 274; 287; 306; 307;
6"zn(n ,2n)6 3zn 48.89 38.1 min 119 1 9 35; 11; 61; 113; 170; 222, 282; 312; 323; (71)
165 î 13 87; 113; 222; 257; 259; 261; 282; 312
204 í 16 11; 49; 88¡ 222 : 255; 282; 312; 367; Í71;1S6 )
66Zn(n ,2n)65zn 27.81 215 d 620 i 60 11; 313
650 i 60 88; 261
710 i 60 11; 255; 308
7 0Zn(n,2n)69szn* 0.62 57 min 1307 1 130 88; 161
69mZn 13.9 h 600 i 40 261
741 - 100 161; 255
69Ga(n ,2n)^Ga 60.1 68.3 r 37; 61; 173
37; 257; (221)
1070 - 90 37 ; 88; 165; 166
71Ga(n,2n)70Ga 39.6 21.1 min [700 i loo] [221]
[961 í 100] [88]; (165)
116 BORMANN e t al .
T A B L E III (cont . )
Isotopic Reaction abundance Tj
<%)
C r o s s - s e c t i o n s (mb)
14. 1 MeV 14. 5 MeV 14. 9 MeV
70Oe(n,2n)69Ge 20.52 39 h 508 Î ¡10
610 Í 50
700 - 50
246
221; 216; 255; 257; 321
246; (165)
7 2Ge(n,2n)7 1"be 27.13 20 he 187 i 50 158
76Ge(n,2n)7563e* 7.76 83 min 1157 - 100
75"te
73mSe S )
48 s 914 i 80
1210 i 100
967 i 80
1060 i 75
7 " s e ( n , 2 n ) 7 3 g s e 6 ' 0.87 7 . 1 h 110 i 20
12 min 165 i 10
1232 - 100
1012 - I
75As(n,2n)7 l | gAs* 100 17.7 d 1020 i 75
1085 - 75
219; 288
219; 321; (221)
165; 199; 219; 288 15 219
i; 219 l ; 219; (199)
39; 13; 126; 115; 216;(250)
246; 302; (221)
39; 13; 88; 115; 216; 255
2; 40; 114
185 - 30 257 ; 301
220 i 35 2; 40j 144; (151); (226)
2; 4o; 144
210 i 50 257; 301
235 1 55 2; 40; 144; (226)
7 6Se(n,2n) 7 5Se 9.02 120 d 845 ± 60
I i 81 944 i 65
115
301
115; (226)
7 8Se(n,2n)7 7 mSe b 23.52 17.5 s 760 t •
801 i 70
885 * 70
63; 226) 268
63; 226; 268
63; 226; 268
19.82 3.9 i [680 - ÍOOJ
[125 ; 103 [255 - 20}
C3013; (1)
C2003 C226); (i)
8 2 se (n ,2n ) 8 l 8se 9.19 18 min
8l™Se 57 min
225 i 15
894 - 89
315 i 25
960 i 50
301
28; 131; 226; (200)
301; (221)
134; 226; (154); (200)
® Checking of decay scheme is urgently recommended.
FAST NEUTRON CROSS-SECTIONS 1 1 7
TABLE III (cont. )
C r o s s - s e c t i o n s (mb) Iso topic
Reac t ion abundance T^ 14. 1 MeV 14.5 MeV 14. 9 MeV R e f e r e n c e s (%)
7 9 Br(n ,2n ) 7 8 Br 50.337 6.1) min 862 Í 50 l ; 61; 171; 219; (59)
932 i 60 i ; 219; 257; (221); (302)
1010 í 50 1; 128; 209
6 l B r ( n , 2 n ) 8 Û % r 19.163 17.6 min 390 Í 39 111; 219
410 i 41 219; 286
430 i 43 94; 128; 209; 219
8 0 mBr 1 .1 h 719 i 94 33; (111); (219)
730 i 80 33; 257; 286; 302
750 t 50 128; 209; (219)
7 8 Kr(n ,2n) 7 7 Kr 0.354 1 .2 h [245 Í 20} Ü75)
8 0 Kr(n ,2n ) 7 9 %r ' > 2.27 34.9 h 810 i 60 175
79mKr 55 s 415 * 50 175
8 2 Kr(n ,2n) 8 l m Kr 11.56 13 s 160 î 15 175
8 6 Kr(n,2n) 8 5 m Kr 17.37 1 .1 h 350 ± 35 175
8 5 R b ( n , 2 n ) 8 W 72.15 33 d [1H7 - 72] Í216)
J . t C961 ± 58] [133; (88) ; (293)
C1093 i 793 [3103 T1509 - 761 [2163; (286); (293); (302)
[1530 i 773 [2163 [1130 i 71) [261] t l l 7 4 i 943 [13) [1682 i 1613 [2103 £1335 i 903 (149)
21 min [311 i 213 [13]
[478 i 183 [302] [505 - 313 ß«>3
[374 î 283 [433 C926 i 613 [2103 [714 i 50] [1493
18.7 d [1170 1 59) [246] [1394 * 1393 [2613; (293)
[1202 i 603 [2163 [1832 t 2763 [3103; (286); (293); (302)
8 6 V
[1191 - 603 t216} [1560 i 1563 [264] [1417 ¿ 723 [1193; (210)
£ 932 I 150) t2103 [ 581 - Ko) [1193
118
T A B L E III (cont . )
BORMANN e t al .
Isotopic abundance Ti
(%)
C r o s s - s e c t i o n s (mb)
14. 1 MeV 14. 5 MeV 14. 9 MeV
8"sr(n,2n)83sr 1 0.56 33 h [112 i 73
[182 i 80) 1380 i 50) [166 î 8)
C395 ; 75) Clio î 80) Cl8l - 91
(216)i (39)
(302) (286) (216) [119)
m-, C39)| (165)
86sr(n,2n)85»8sr 9.86 65 d 787 - 50 213; 264; 156; (88); (286) 1060 Î 105 , 210; 261
85^ 70 min 220 ± 20 456; (213) 247 - 25 302; (286)
276 Î 30 II9; 210; 261;
Sr(n t 82.56 2.8 h 222 - 15
(225 - 21)
351 1 30
37; 156
(286; 302)
119; 210; (351)
'9Y(n,2n)e8Y 100 108 d 850 2 15
930 - 81
1015 - 70
202; 261; 125; (126); (213); (293)
156; (286); (118)
88; 161; 251; 261; 159
9®Zr(nf2n)89®Zr* 51.16 78.1 h 630 i 15 711 - 50
2; 246; 262;
2; 246; 257;
264
315; (286) 790 Í 5 0 2; 161; 210;
(119); (199)! 246; 251; 264;
; (210) 8 9 V f 1.2 min [71 - 3)
[123)
(79.5 - 5.6) M
(262) (2)
r22i; 315] (2)
[84 m ? «J ; 15) i 203 [493 f2 ; 119; 161: [199); (210)
; 264)
9 6Zr(n,2n)95zr 2.80 65.5 < 1156 t 80
1529 - 111
315
251
100 10.2 d 110 i :
I i 30
150 - 30
229; 261; 293; 301 118; 229; 293; 315; (286) 30; 19; 1I9; 171; 229; 251; 264; 1,73
FAST NEUTRON CROSS-SECTIONS 119
T A B L E III (cont. )
Isotopic React ion abundance Tj
(%)
C r o s s - s e c t i o n s (mb)
14. 1 MeV 14. 5 MeV 14. 9 MeV R e f e r e n c e s
a W n . Z n ) 9 1 « ! * , ® 15.81 15.5 min 135 1 10
91% 65 s 7.8 - 1
2; 87; 92; 144; 323
170 * 13 2; 87; 144; 221; 315; (46) | (257)
195 - 15 2; 49; 83! 210; 248; 255; (134)i (161); (451)
2
13 i 1.2 2 ; 315
17 - 1.5 2; 161; 255; 295; (94); (134) (210); (248)
9 W n , 2 n ) 9 3 " V b 9.04 6 .9 h 3 - 1 115
l°°Mo(n.2n)99tto 9.63 66.7 h 1510 - 180 92
{2039 z 21°3 C286) 1389 - 84 315; (221)
(1910 j 1913 [1653 [1762 j 2003 [883 1390 - 60 255
9^Ru(nf2n)9^Ru 5.51 1.65 h 774 t 66 30
[610 Í 50) [189! 2573
870 î 50 30; 264; (130); (221)
98Ru(n,2n)97Ru 1.87 2.9 i 1169 - 96 315
1 0 V ( n , 2 n ) 1 0 5 R u 18.58 39.5 a 1460 i 145 30
1440 - 80 315; (130)
103tm(n,2n)102eit. 100 206 i 563 - 40
2.9 yr ' 383 - 30
530 i 40 [690 i 67]
400 i 27
229; (293)
229; 315 [30Í; (293)
229
229; 315
l ° 2 M ( n . 2 n ) l 0 1 M 0.96 8.3 h [637 ± 45)
1030 - 105
[315]
30
1 0 8 P a ( n > 2 n ) l ° ^ 26.7 21 s 517 - 80 210
1 1 0 M<n.2n> 1 0 S 8 w" 11.81 13.5 h
4.7 min
1975 * 140
498 i 45
510 î 30
30; 221; 315; (36); (199)1 (208)
301 315
208; (199)
120
T A B L E III (cont. )
BORMANN e t a l .
. . . C r o s s - s e c t i o n s (mb) I so top ic ! !
abundance T^ 14. 1 MeV 14.5 MeV 14. 9 MeV R e f e r e n c e s
(%)
W A g í n , ^ ) 1 0 ^ ' 51.35 24 min tlOOO Í 100] (931
1 0 6 ^ )
[852 i 80) (259) [818 i 75) (59) : (61)1 (110) ; (179) ; (306) ;
(270); (221); (293); (323) (1000 i 100) - [93)
(889 i 66) [257) C520) (67) ; (221)
£601 i 90) [166) (870 i 10) (210) (657 i 100) [165] [662 í 66) t211)
8 .3 d 580 í 30 307; (293)
605 i 30 307; (293)
630 - 31 210; 306; 307; (211)
1 0 V ( n , 2 n ) 1 0 8 S A g 18.65 2 . 1 min 710 - 80
710 i 80
710 - 80
93; 164; 306; 323; (110); (179)
93; (67) ; (221)
93; 165; 210; 214
1 0 6 Cd(n,2n) 1 0 5 Cd 1.215 55 min 610 - 60 ( 260); (13) '
928 - 85 188; 257; 260;
(980 Î 100] [260]; (13)
108cd(n,2n)1 0 7Cd 0.875 6.5 h C504 i 48) D 2 U
915 - 85 315; 319
1 1 0 Cd(n,2n) 1 0 9 Cd 12.39 153 d 1221 t 150 315; 319
1 1 2 C d ( n , 2 n ) i n " t d 21.07 19 min 621 Î 75 465
[725 - 50) b ) [315]
576 í 69 165
l l 6 Cd(n ,2n ) 1 1 5 E Cd 7.58 53.5 h 850 - 70 246 ; 324
830 - 80 246; 315
790 - 80 216; (165)
1 1 5 mCd 43 d 760 i 60 246; 321
790 i 80 246; 315
770 t 80 216; (165)
FAST NEUTRON CROSS-SECTIONS 1 2 1
T A B L E III (cont. )
Isotopic abundance
(%)
Cross-sections (mb)
14. 1 MeV 14. 5 MeV 14. 9 MeV References
113In(n,2n)112Kln ^ 4.28 l l . l min
1 1 2 ^ 21 min
112m+glrl
3 1 6 i 4 0
1 3 1 7 * 2 0 0
1 1 5 2 7 ± 5 6 )
( 1 6 3 3 - 2 1 )
3 2 0 - 2 5
1450 i 100
[1790 i 150) [1753 j 110] [1510 i 140]
162; (131)
2 1 1 ; 2 6 7 ; ( 1 7 6 )
1 , 6 2 ; ( 1 3 1 ) ! ( 9 4 )
211; 267; ( 1 7 6 )
Cl 3 1 3
662)
Ç 2 6 7 3
fell) ( 1 7 6 )
" S l n t n ^ j H ^ E l n
l l l m ^
9 5 . 7 2
5 0 . 0 d 1 5 5 7 - 1 0 0
2 9 5 131
3 2 3 - 5 0 211; 2 4 7 ; 2 4 8 ; 2 6 7 ; (176)
2 4 6
5 1
1 0 0 131; 2 4 6 ; (116)
1 5 1 5 - 100 26; 211; 2 4 6 ; 2 1 8 ; 267; ( 1 7 6 ) ; ( 2 0 5 )
112Sn(n,2n)11:1Sn 1 t ) 0.96 35 min [1200 i 150] t l 3 ; 8 8 ; 2 6 0 ) ;
( 1 6 7 ) ! ( 2 9 3 )
[ 1 3 0 0 - 1 5 0 ) [ 1 8 7 ; 2 5 7 ; 4 6 3 )
C l l o o i 1 5 0 ] [ 1 3 ; 2 6 0 )
Msn(n,2n) 1 1 3esn* 0 . 6 6 1 1 5 d [ 1 2 3 9 ; 1 3 0 ] [ 1 8 0 0 - 1 0 0 )
[ 3 1 5 3 C l 8 7 )
" S s n t n ^ ) 1 1 ^ t ) 2 1 . 0 3 1 1 d 966 - 100
[ 1 2 3 0 - 3 1 0 )
1 8 7 ; 3 1 5
[ 5 1 ]
" O s n l n ^ ) 1 1 ^ 8 . 5 8 2 4 5 d 1 1 1 1 i 2 1 0 1 8 7
122sn(n,2n)121esn 4 . 7 2 2 7 h 8 7 5 - 1 3 5 1 8 7
1 2 1 s n ( n , 2 n ) 1 2 3 e s n 5 . 9 1 1 2 9 d 9 0 0 - 1 8 0 1 6 7
l 2 * " S n 1 0 m i n 517 i 23 1 8 7
12lsb(n,2n)120gsb 5 7 . 2 5 1 5 . 9 m i n 1 0 1 0 •
120ma¡t eslía
1080 - 90
[427 1 20)
1 3 ; 1 6 2 ; 1 7 i ; 2 5 9 ;
( 5 9 ) i ( 7 8 ) ; ( 1 6 4 )
171; 2 5 7 ; 2 5 9 ; 3 1 5 ;
( 7 8 ) ; ( 2 2 1 )
1110 i 9 0 4 3 ; 162; 165; 211; ( 7 8 )
[162] [ 1 3 )
D 1 5 ]
[ 5 9 7 i 3 5 ) [ 2 1 1 ]
( 5 6 1 i 1 3 2 ) ( 1 6 2 )
[ 6 9 5 - 6 1 ) £ 4 3 ]
122
TABLE III (cont. )
BORMANN e t a l .
Isotopic Reaction abundance T j
(%)
C r o s s - s e c t i o n s (mb)
4. 1 MeV 14. 5 MeV 14. 9 MeV
1 2 3Sb(n,2n)1 2 2ESb*
10\
122mg,
1 2 . 7 5 2 . 6 8 d [ 1 7 0 6 - 1 2 0 ]
C 1 2 6 3 i 1 3 5 )
4 . 2 m i n 5 1 7 - 7 9
[ 1 2 1 5 ; 3 1 2 ) [1512 Í 80]
7 3 1 - 7 3
[ 1 6 4 ]
[ 1 3 )
[221] ( 3 1 5 )
[ 1 2 7 0 Î 7 0 ] 4 5 , 4 5 7 , ( 1 6 5 , 2 1 1 )
1 3
268
6 8 6 - 6 0 2 1 7
( 1 0 1 3 ) [ 1 9 9 ]
1 2 0 T e ( n , 2 n ) n 9 B l f e 0 . 0 8 9 1 6 h
l l ^ i T H e 1 . 7 d
6 8 5 - 1 0 0 1 4 8
5 3 5 i 8 5 1 4 8
1 2 a I t e ( n , 2 n ) 1 2 l e r e 2 . 4 6 17 d
1 2 1 m f t ! 1 5 1 d
7 2 5 i 1 0 3 1 5
7 5 0 - 1 0 0 1 4 8
8 9 0 - 1 0 0 3 1 5
5 3 0 - 8 0 1 4 8
1 2 l l I t e ( n , 2 n ) l 2 > n i t e 1 . 6 1 1 1 7 d 3 1 5
1 2 8 n > ( n , 2 n ) 1 2 7 B f t > 3 1 . 7 9 9 . 4 h
j27m
7 8 0 i 6 0 3 0 ; 2 2 1 ; 3 1 5
6 6 0 i 5 0 3 6 ; 1 3 1 ; 1 1 8 ; ( 1 9 8 )
9 1 0 - 1 0 0 3 0 ; 3 1 5 ; (118)
» ^ ( n ^ ) 1 2 9 ® ^ 3 1 . 1 8 6 9 i
1 2 9 ^ ' 3 1 d
1 5 1 1
[ 5 9 9 ; 1 2 0 ] 2 2 1 ]
[ 8 1 2 ¿ 5 0 ) 3 0 )
[ 5 7 0 - 3 0 ] [ 3 1 5 )
[661 í 10) [131] [ 5 8 0 i 2 7 ) £ 3 6 )
[ 1 3 5 1 5 0 ) 1 1 1 8 ) ; ( 1 9 8 )
[ 1 0 0 0 Î 6 1 ] [ 3 0 ] ( 5 1 )
[ 8 8 5 i 1 5 ) B 1 5 )
[ 5 2 8 i 1 0 0 ] [ 1 9 8 ] ; ( 1 1 8 )
127l(n ,2n) 1 2 6 I 1 0 0 1 2 . 8 d
( 3 3 ) ; ( 1 9 2 )
1 6 4 9 - 8 0 3 1 5 ; ( 2 2 1 ) ; ( 3 1 0 )
1650 í 140 26; 132; (252)
1 2 4 . ' ) C e ( n , 2 n ) 1 2 5 X e 0 . 0 9 6 2 . 1 h 1 1 3 0 - 1 1 0
1 2 6 X e ( „ , 2 n ) 1 2 5 s X e * 0.090 16.8 h 1 3 5 5 - 165 175
1 2 5 V 55 s 7 0 0 i 2 0 0 175
F A S T N E U T R O N C R O S S - S E C T I O N S 123
TABLE III (cont. )
I s o t o p i c a b u n d a n c e
C r o s s - s e c t i o n s ( m b )
R e a c t i o n I s o t o p i c
a b u n d a n c e T j 1 4 . 1 M e V 1 4 . 5 M e V 1 4 . 9 M e V R e f e r e n c e s
1 2 8 X e ( n , 2 n ) 1 2 7 E X e * 1 . 9 1 9 3 6 . 4 d 1 5 3 0 - 1 7 0 1 7 5
1 2 7 ^ 7 0 s 8 4 0 Í 6 5 1 7 5
UOxetn^)!2^ *) 4 . 0 8 8 . 0 d 1 4 3 5 * 1 3 0 1 7 5
1 3 2 X e ( n , 2 n ) 1 3 1 ^ e i ) 2 6 . 8 9 1 1 . 8 d 7 7 5 i 6 5 1 7 5
1 3 l i X e C n > 2 n ) 1 3 3 g x e * 1 0 . 4 1 5 . 6 5 d 2 3 6 0 i 2 4 0 1 7 5
1 3 3 m x e 2 . 2 d 6 6 5 - 8 0 1 7 5
1 3 6 X e ( n , 2 n ) 1 3 5 % e * 8 . 8 7 9 . 1 5 h 1 7 0 0 i 1 0 0 1 7 5
1 5 . 6 m i n 7 5 0 i 5 0 1 7 5
133c E(n,2n) 1 3 2Cs 1 0 0 6 . 5 d [ 1 4 5 0 i 1 3 0 ]
1 5 2 0 - 1 1 0
1 6 0 0 - 1 1 0
[ 3 3 ! 3 0 4 7 j
2 1 6 ; 3 1 0 ;
1 3 2 ; 2 5 3
! ( 2 1 6 ) ; ( 2 4 1 )
3 1 5
1 3 ° B a ( n , 2 n ) 1 2 9 B a <>) 0 . 1 0 1 * 3 2 . 1 h ( 1 2 9 C s ) ' ( i ) 1 3 7 1 - 7 0 3 1 5
1 3 2 B a ( n , 2 n ) 1 3 l B a 0 . 0 9 7 * 1 2 d 1 5 7 4 - 1 0 0 3 1 5
1 3 " B a ( n , 2 n ) 1 3 3 , , , B a 2 . 4 2 * 3 8 . 9 h 7 8 3 1 5 6
9 4 0 i 8 0
3 1 5
3 1 7
» Ö B a t n . a n ) 1 3 ^ * ) 7 . 8 1 * 2 8 . 7 h [ 1 1 4 9 i 8 0 ]
[ 7 0 0 i 8 0 ]
C 3 1 5 ]
D l 7 3
1 3 8 B a ( n > 2 n ) 1 3 7 - » B a ' ' ) 7 1 . 6 6 * 2 . 5 5 m i n 1 0 2 0 - 7 0
1 0 4 8 - 1 0 0
1 2 5 0 - 1 0 0
9 1
2 6 8
3 1 7
136Ce(n,ai)135ce 0 . 1 9 3 1 7 . 2 h 1 3 1 8 Í 9 0 3 1 5
1 3 8 c e ( n , 2 n ) 1 3 7 m c e 0 . 2 5 0 3 4 . 4 h 9 5 8 - 1 0 0 3 1 5
# I s o t o p i c a b u n d a n c e n o t a c c u r a t e l y k n o w n .
124
TABLE III (cont. )
BORMANN e t a l .
Isotopic Reaction abundance Ti
(%)
C r o s s - s e c t i o n s (mb)
14. 1 MeV 14. 5 MeV 14. 9 MeV
l ' O c e t n . Z n ) 1 3 9 ^ * 8 8 . 4 8 1 1 0 d 1800 - 120 4 3 ; 4 5 3 ; ( 9 1 )
[ 1 5 9 3 i 1 3 0 ) [ 3 1 5 )
1760 - 1 1 0 4 3 ; 9 9 : 4 5 7 : < 3 1 7 )
1 3 9 ^ 5 6 . 5 s 1 2 1 0 - 1 2 0 3 9 ; 9 i ; 2 4 1
1 2 0 0 i 1 1 0 3 9 ; ( 2 0 6 ) ¡ ( 3 1 5 )
II60 1 120 3 9 ; 2 1 7 ; 3 1 7
i ' ^ t n . a O ^ C e 1 1 . 0 7 3 2 . 5 d 1 6 9 5 t 1 0 2
1 7 3 0 - 1 7 0
1 8 5 0 - 1 6 0
1 3
3 1 5
1 3 ; 9 9 ; 3 1 7 ; 1 5 7
1 , 1 P r ( n , 2 n ) 1 ' , 0 P r 1 0 0 3 . 1 m i n 1 8 0 0 i 1 1 0
1 8 4 0 - 1 1 0
1860 i 150
1 3 ; 9 1 ; i 7 i ; 2 6 o ; ( 6 1 )
1 7 1 ; 2 2 1 ; 2 5 7 ; 2 6 0 ; ( 2 0 6 )
1 3 ; 1 0 1 ; 2 6 0 ; 3 1 7 Í 6 4 ;
( 1 6 5 )
l42Nd(n,2n)l4lSNd*
l l lm
2 7 . 1 1 2 . 5 h 1 6 1 0 - 1 3 0
[2075]
6 7 0 i 6 0
1 6 1 0 - 1 3 0
(21111
610 i 60
1 6 4 0 í 1 3 0
[2060)
6 7 1 i 7 0
m1' 3 0 ; 2 0 6 [ 2 5 7 3
? 9 ; 1 2 9 ( 3 1 7 }
9 1 ; I52
5 0 ; 2 0 6
1 2 9
5 . 7 3 1 1 . 1 d 1 6 2 6 í 2 0 0 I 5 2
[ 2 1 6 0 ± 2 0 0 ) ( 3 1 7 )
I S O N d í n , . 2 n ) l * % d 5 . 6 2 1 . 7 3 h 1 7 2 8 i 2 7 6 2 0 6
[ 2 2 0 0 i 3 0 0 ) B l 7 )
l M a n C n ( , 2 n ) 1 " 3 s a i * 3 . 0 9 8 . 8 3 m i n 1 3 8 0 t 1 3 8 4 3 ; 9 1 ; 260; I52
1 1 7 8 i 1 1 8 2 0 6 ; 2 5 7 ; 2 6 0
1620 i 1 6 2 1 0 ; 13; 161; 260; ( 3 1 6 )
6 1 s 5 5 0 i 5 0 1 3 ; 1 5 2 ; ( 9 1 )
5I0 - 7 0 5 0 ; 2 0 6
[ 8 0 0 i 2 0 0 ) [10; 9 1 ; 161)
1 5 l a n ( n , 2 n ) 1 5 3 a n 2 2 . 7 1 1 6 . 8 h [ 2 2 5 0 ) [ 2 2 1 )
1 5 0 0 í 3 0 0 3 1 6 ; 3 1 7
FAST NEUTRON CROSS-SECTIONS 125
T A B L E III (cont. )
Isotopic abundance
(%>
C r o s s - s e c t i o n s (mb)
Reaction Isotopic
abundance (%>
T i 14. 1 MeV 14. 5 MeV 14. 9 MeV R e f e r e n c e s
151aifa,2n)150"Bu 1 7 . 8 2 1 2 . 6 h 5I0 t 70 165; 2 8 4 ; 3 1 7
1 5 3 E u ( n , 2 n ) 1 5 2 n > l Q it 5 2 . 1 8 9 . 3 h £ 6 5 2 i 9 0 ) [ 1 5 2 )
l5an2 E u 9 6 min [91 - 12J
[ 1 6 4 Í 2 5 )
f 7 5 0 i 2 0 0 ) f l 6 5 )
[317]
[ 1 5 2 ]
W l o d t n ^ i l S S M 2.15 2 1 2 d 1855 * no 9 9
l 6 o O d ( n , 2 n ) 1 5 9 o d 2 1 . 9 0 18.56 h 1675 - 160
[ 1 1 7 0 ]
1660 - 170
1 5 2
( 2 2 1 )
1 3 2 ; 1 6 5 ; 3 1 7
«»Ib(n,2ri)15ai>B,T 1 0 0 1 0 . 5 s ( 5 2 4 i 7 0 ]
[ 1 6 0 - 1 9 )
[ 1 2 5 0 1 3 0 0 )
£ 4 5 2 }
Í 5 0 )
( 2 4 7 )
1 5 6 0 y ( n , 2 n ) 1 5 5 D y 0 . 0 5 2 1 * 1 0 . 2 h 1 9 4 3 - 1 9 1 2 2 0
l 5 8 p y ( n , 2 n > 1 5 7 0 y 0 . 0 9 0 2 * 8 . 0 6 h 2 0 1 7 - 2 0 5 2 2 0
2.291 1 1 1 d 2 0 1 5 - 1 2 0 9 9
l65Ho(n,2ri)l6,"^o® 1 0 0 3 9 min ^ 1 0 5 0 í 1 0 0
1 1 1 0 - 1 5 0
2 8 0
9 9 ; 205; 288
161mg;® 2 l m i n ( g ) 1 7 8 0 Í 1 1 0
1 7 1 0 J 2 0 0
[ 2 1 1 0 - 3 0 0 ]
2 8 0
43; 288; ( 9 9 ) ; ( 1 6 5 ) ; ( 3 6 )
l 6 a E r ( n , 2 n ) l 6 l E r 0 . 1 3 6 3 . 1 h 1 8 7 0 i 3 0 0
1 7 5 0 - 1 2 0
4 5 2
1 3 2
l 6 6 E r ( n , 2 n ) l 6 5 E r 3 3 . 4 1 1 0 . 3 h 1 9 6 5 i 1 5 5
Ctooo i 100] 9 9
[ 3 1 7 ]
l 6 8 E r ( n , 2 n ) l 6 7 n i E r 4 ) 27.07 2.3 3 [108O t 100] [ 6 3 ]
C l 9 0 ; 2 1 ] [ 5 0 ] r i o c ! 031 K U
[690 í 110) [217] C973 - 120] [63]
126
TABLE III (cont. )
BORMANN e t a l .
C r o s s - s e c t i o n s (mb) Isotopic :
Reaction abundance T j 14. 1 MeV 14. 5 MeV 14. 9 MeV Refe rences (%)
° E r ( n , 2 n ) l 6 5 E r 1 1 . 8 8 9 . 5 d 1 8 9 5 i 1 3 5 2 8 1 [ 1 2 0 0 i 5 0 0 ] [ 3 1 7 ]
l 6 9 n n ( n , 2 n ) l 6 a I t a 1 0 0 9 3 . 1 d [ 1 0 3 0 ± 4 0 0 ) [ 2 9 3 ]
2 0 0 0 Í 1 1 5 9 9
1 7 0 ï b ( n , 2 n ) l 6 S Y b 3 . 0 3 3 2 d 2 0 8 0 i 1 1 0 9 9
1 7 6 ï b ( n , 2 n ) 1 ' ' 5 ï b 1 2 . 7 3 101 h 1810 - 130 281; (165); (317)
1 7 5 L u ( n , 2 n ) 1 7 1 , e u ® 9 7 . 1 1 3 . 6 y r 1 2 8 5 1 l I O 9 9
1 7 1 ^ 1 1 0 d 6 5 5 1 5 5 9 9 ; ( 3 1 7 )
1 7 l H f ( n . 2 n ) 1 7 J H f 0 . 1 8 * 2 3 . 6 h [ 8 6 0 i 6 0 ] [ 1 1 1 )
1 7 6 H f ( n , 2 n ) 1 7 5 H f 5 . 2 0 7 0 d 2 0 0 0 - 1 0 0 1 1 1
2 2 2 0 - 1 1 5 9 9
1 7 9 H f ( n , 2 n ) 1 7 8 n t a 1 3 . 7 5 1 . 3 s [ 8 8 0 i 1 0 0 ) C2I7)
3 5 . 2 4 1 8 . 6 s [ 6 9 0 î 7 0 ) [ 2 6 8 )
[ 5 7 0 - 5 0 ) C 2 1 7 J
l 8 l T a < n , 2 n ) l 8 0 m r a t ó ) 9 9 . 9 8 7 7 8 . 1 h [ 1 1 1 0 i 8 0 } [ 1 3 ; 2 1 6 ) [ 2 0 7 I ; 1 7 1 [ 3 2 7 ) [ 1 8 2 5 1 9 0 ) C 5 D
[ 1 1 3 0 t 8 0 ) C l 3 ; 2 1 6 ) C l 8 l 0 - 1 0 0 ) C 5 4 ) ; ( 2 2 1 )
[ 1 8 2 0 i 1 0 0 ) ( 2 3 9 )
l 8 2 W ( n , 2 n ) l 8 % 2 6 . 1 1 1 3 0 d 2 2 3 0 - 1 5 0 9 9 ; 1 0 2
I 8 1 w < n , 2 n ) 1 8 3 m w fc) 3 0 . 6 1 5 . 3 s [ 7 9 0 i 9 0 ) t247D¡ ( 3 2 5 )
I 8 6 w ( n , 2 n ) 1 8 5 e w * 2 8 . 1 1 7 1 d [ 2 2 9 0 i 2 3 0 ) C l 0 2 )
18511V, 1 . 6 m i n 5 1 0 i 8 0 2 4 0 ; 2 4 7
FAST NEUTRON CROSS-SECTIONS 127
T A B L E III (cont. )
Cross~sec t ions (mb)
React ion Isotopic
abundance T! 14. 1 MeV 14. 5 MeV 1 4 . 9 MeV R e f e r e n c e s (%)
l 8 5 R e ( n , ; ! „ ) l M g H e 3 7 . 0 7 3 8 d [ 1 9 1 0 - 6 0 0 ] " ) [ 1 6 0 ]
1I3O - 220 1 6 8
l 8 % e 1 6 5 d < l ) [1120 t n o ^ ) [ 1 6 0 ]
2 6 0 - 1 0 0 1 6 8
1 8 7 Re(n,2n) l 8 6 Re 6 2 . 9 3 9 0 h 1 1 1 0 i 4 1 0 160
1 5 8 0 i 160 165; 1 6 8
M î o s t n . Z r . ) 1 » 1 « * * 1 1 . 0 1 5 d 2 2 3 3 * 1 9 9 3 0
1 9 9 3 i 2 0 0 1 3 5
2 1 2 0 î 2 2 0 3 2 0
1 3 h 8 3 1 * 1 1 6 3 2 0 ; ( 1 7 1 )
3 7 . 3 3 . 2 h 164 î 1« 3 0
2 0 1 i 2 0 3 0 ; 255; ( 1 6 5 ) l 9 0 g + m i
3 0 ; 255; ( 1 6 5 )
I r 1 1 . 0 d (g) i 9 6 0 - 2 3 0 3 0
1 7 2 3 - 1 3 0 9 9 ; 2 5 5
1 9 3 i r ( n . 2 n ) 1 9 2 l r a V 6 2 . 7 7 1 . 2 d 2 0 6 2 - 1 2 1 2 5 5
1 9 2 P t ( n , 2 n ) l S l f > t 0 . 7 8 3 . 0 d 2 0 3 5 - 1 5 0 1 3 5
2 0 2 6 - 1 6 8 2 5 5
l ^ P t C n . Z n ) 1 9 » ^ I.J 2 5 . 3 1 . 1 d 4 6 0 i 55 1 3 5
1 9 8 r t < n , 2 n ) 1 9 7 e p t 7 . 2 1 1 8 h 1 1 2 8 i 1 2 5 3 0 ; ( 1 3 5 ) ; ( 2 2 1 )
1030 - 160 2 5 5 ; 320; (200) 1 9 7 V 8 6 min IOBO i 9 0 3 0 ; 1 3 5
980 i 100 2 0 0 ; 2 5 5 ; 3 2 0
l ^ A u i n . ^ j l S W 1 0 0 6 . 2 d 2 4 0 3 - 1 2 0 216; (15; 123; 2 9 3 ) ; ( 4 6 9 )
2 2 7 0 - 1 2 0 1 3 5 ; 2 1 6 ; ( 2 2 1 ; 2 9 3 )
2250 - 120 9 9 ; 2 1 6 ; 2 5 5 ; 3 0 7 ; ( 2 0 0 )
1 9 f e . Au 9 . 7 h 1 3 4 1 7 2 1 6 ; 9 . 7 h (175) ( 2 9 3 )
1 1 3 - 1 0 1 J 5 ; 2 1 6 C210: ( 2 9 3 )
117 - 10 9 9 ; 2 4 6 ( 2 3 0 ) C 2 0 0 )
128 BORMANN e t a l .
TABLE III (cont. )
C r o s s - s e c t i o n s (mb) Isotopic
Reaction abundance T j 14. 1 MeV 14. 5 MeV 14. 9 MeV R e f e r e n c e s (%)
196Hg(n,2n)195eHg 0.116 9 .5 h [<1100) [291]
3 6 3 i 5 1 1 3 5
195mHg 10 h [1060 - 70) [291]
1 6 1 7 - 16O 1 3 5
n , 2 n ) 1 9 7 g H g 1 0 . 0 2 6 1 . 1 1 h 9 1 0 - 1 0 0 2 9 1
1 1 2 5 i 1 0 0 1 3 5
1 0 1 0 - 1 1 0 2 5 5 ; ( 9 9 )
2 3 . 8 h 9 0 0 i 7 0 2 9 I
8 8 5 - 8 0 1 3 5
9 1 0 - 8 5 2 5 5
2 0 0 H g ( n , 2 n ) 1 9 9 n t J g 2 3 . 1 3 1 3 m i n 8 8 0 i 6 0 2 9 1
7 8 9 i 1 2 0 1 3 5
2 0 1 | H g ( n , 2 n ) 2 0 3 H g 6 . 8 5 1 6 . 9 d 2 0 6 0 i 1 9 0 2 9 1
2050 i 160 135; 456
2 1 9 0 i 1 5 0 9 9 ! 2 3 3 ; 2 5 5
2 0 5 n ( n , 2 n ) 2 0 2 T l 2 9 . 5 0 1 2 . 1 d [ 1 3 5 0 - 1 5 0 ] [ 2 4 6 ; 2 7 7 ; 2 9 3 )
1 9 5 0 i 2 0 0 1 3 5 ; ( 2 1 6 ; 2 9 3 )
1 8 5 0 í 1 8 0 99; 2 2 6 ; 2 3 3 ; ( 2 1 0 )
n,2n)201n 70.50 3 .8 y r 1990 - lio 281
2 ° 1 | p b ( n , 2 n ) 2 0 3 8 p b * 1 . 1 8 5 2 . 1 h 1 8 1 0 - 1 2 0 9 8 ; 2 0 2 ; 3 0 0
1 7 4 0 i 1 4 0 1 3 5
1 8 1 0 - 1 3 0 8 8 ; 9 9 ; I 6 l ; 2 2 6 ; I70
2 0 3 m P b t 6 s [ 1 2 6 0 * 2 7 0 ) [ 1 )
[ 1 3 3 0 i 2 2 0 J [ 1 )
Ù 3 1 0 i 1 2 0 ) [ 1 3
(860 i 180) £161)
2 0 6 P b ( n , 2 n > 2 ° 5 n t b 2 3 . 6 1 ra 1 1 0 0 - 2 0 0 1 1 7
2 0 8 p b ( n 1 2 n ) 2 ® 7 m P b 5 2 . 3 0 . 8 0 s 1 1 1 4 - 1 0 0 6 3 ; 2 8 l
1631 - 150 63;ll6 1 7 0 0 - 1 5 0 6 3 ; 1 1 8 ; 1 6 1 ; ( 2 1 7 )
2 0 9 a i ( n . 2 n ) 2 0 8 a i 1 0 0 3 . 7 1 0 5 y r 2 2 2 0 i 1 5 0 1 ; 1 5 ; 1 0 6 ; 1 2 3 ; 1 8 2 ; 2 6 6 [2120] [108)
S O S n f e j t 2 . 6 m s [ 2 9 0 i 3 0 ) [ 1 7 1 )
[ 6 3 0 i 1 2 0 J [ 1 1 6 ¡ 1 1 8 )
FAST NEUTRON CROSS-SECTIONS 129
TABLE III (cont. )
T , C r o s s - s e c t i o n s (mb) Iso topic
abundance T¡ 14. 1 MeV 14. 5 MeV 14. 9 MeV (%)
2 2 6 R a ( n , 2 n ) 2 2 5 R a u n s t a b l e 1*1 .8 d 1 6 0 0 i 2 0 0
2 3 ® B i ( n , 2 n ) 2 3 1 T h 1 0 0 2 5 . 6 h 1 3 9 0 Î 1 3 0 2 3 0 ; 2 4 6 ; 2 9 2
1 3 2 0 - 1 3 0 5 5 ; 2 1 6 ; 2 9 2
1 2 1 0 t 1 2 0 23<t ; 2 i ) 6 ; ( 3 2 6 )
2 5 8 U ( n , 2 n ) 2 ' 7 u 9 9 . 2 7 3 9 6 . 7 5 a 7 5 0 * 5 0 1 2 5 ; 2 3 7 ; 115«;
6 8 0 i 1)0 1 2 5 ; 2 3 0 ; 1)72
6110 * 1 5 0 1 2 5 ; ( 1 1 )
2 3 7 N p ( n , 2 n ) 2 3 6 " t o p u n s t a b l e 2 2 h 3 9 0 i 7 0 2 3 0
LIST OF COMMENTS TO TABLE III
Taken from Ref. 5.
Threshold energy exceeds projec t i le energy by more than 1 MeV!
See also Refs 88, 257 and 290.
Ref. 458.
Cross-sections are renormalized, taking into account the 73% isomeric transition of 42 min 7 3 m S e (see Ref, 460).
Including that part of the (n, n' 7) reaction with the neighbouring isotope that populates the same metas table state.
See also Ref. 169.
Assuming 100% isomeric transition.
Hal f - l i fe of the cumulat ive 08 + 0. 86 o m decay.
See also Ref. 246.
Cumulat ive ground-state cross-section: a® + 0. 94 o m .
See also Ref. 133 ( o m + S = 1. 35 b) and Ref.246.
Hal f - l i fe not accurately known.
See also Refs 87, 246.
The references cited mainly differ in the separation of o m and o® due to the similar hal f - l ives .
See also Refs 246, 315.
Cumulat ive ground-state cross-section: 08 + 0. 91 o m .
Contribution from 1 8 0Ta(n, n ' ) 1 8 o m T a negligible. For o ( m + © see also Refs 15, 266.
Cross-section for the production of 2 . 2 - d l 8 4 m R e .
Cross-section for the production of 50-d 1 8 48Re.
Without decay of the 161-keV 132 Ir isomer (ha l f - l i fe « 650 yr).
130 BORMANN et al .
R E F E R E N C E S T O T A B L E S I - 111
1 ABELS, C . , BORMANN, M., CARSTENS, W., Rep. EANDC(E)76"U", NEA, Paris (1961) 51. 2 ABBOUD, A . . DECOWSKI, P . , GROCHULSKI, W. , MARCINKOWSKI, A . , PIOTROWSKI, J . , SIWEK, K. ,
WILHELMI, Z . , Nucl. Phys. A139 (1969) 42. 3 ADLER, H . , HUBER, P . , HÄLG, W., Helv. Phys. Acta 26 (1953) 349. 4 ÁDÁM, A. , HRASKO, P. , PALLA, G . , QUITTNER, P. , Nucl. Phys. 49 (1963) 489. 5 ÁDÁM, A . , HORVÁTH, D . , KISS, Á, MAYR, E. , Nucl. Phys. A180 (1972) 587. 6 AGODI, A . , PAPPALARDO, G . , RICAMO, R., VINLIGUERRA, D . , Nuovo Cim. X23 (1962) 1136. 7 ALLEN, K . W . , BURCHAM, W . E . , WILKINSON, D . H . , Proc. R. Soc. A 192 (1947) 114. 8 ALLEN, L., J r . , BIGGERS, W. A. , PRESTWOOD, R.J . , SMITH, R. K. , Phys. Rev. 107 (1957) 1363. 9 ALLAN, D. L., Proc. Phys. Soc. A 70 (1957) 195.
10 ALFORD, W.L . , KOEHLER, D .R . , Phys. Rev. 129 (1963) 703. 11 ANTROPOV, G. P. , ZUSIN, I . A . , KOVRIZHNYKH, A . A . , LBOV, A . A . , At. Ehnerg. 5 (1958) 456. 12 ANDREEV, M. F . , SEROV, V . l . , Sov. J. Nucl. Phys. 7 (1968) 454. 13 ARMSTRONG, A . H . , FREYE, G . M . , Phys. Rev. 103_(1956) 335. 14 ARNOLD, D . M . , RAYBURN, L. A. , Bull. Am. Phys. Soc. 9 (1964) 352. 15 ASHBY, V . J . , CARON, H. C . , NEWKIRK, L. L., TAYLOR, C . J . , Phys. Rev. I l l (1958) 616. 16 BATCHELOR, R., AVES, R., SKYRME, T . H . R . , Rev. Sei. Instrum. 26 (1955) 1037. 17 BARRY, J . , COLEMAN, R., HAWKER, B., PERKIN, J . , Proc. Phys. Soc. 74 (1959) 632. 18 BAYHURST, B. P . , PRESTWOOD, R.J . , J. Inorg. Nucl. Chem. 23 (1961) 173. 19 BASS, R. , BONNER, T. W., HAENNI, H. P . , Nucl. Phys. 23 (1961) 122. 20 BARRY, ] . , J. Nucl. Energy AB 16 (1962) 467. 21 BARRY, ] . , J. Nucl. Energy AB 17 (1963) 273. 22 BASS, R., FANGER, U . , SALEH FATMA, M . , Nucl. Phys. 56 (1964) 569. 23 BARDOLLE, G . , CABE, J . , LAURAT, M . , C.R. 261 (1965) 1266. 24 BASS, R., BINDHARDT, C . , KRÜGER, K . , EANDC(E)57"U", NEA, Paris (1965) 1. 25 BASS, R., KRÜGER, K . , STAGINNUS, B., HAUG, P . , EANDC(E)66"U", NEA, Paris (1966) 64. 26 BARRALL, R. C . , SILBERGELD, M . , GARDNER, D . G . , Nucl. Phys. A138(1969) 387. 27 BENVENISTE, J . , 2nd Int. Conf. Peaceful Uses At. Energy (Proc. Conf. Geneva, 1958) 15, UN,
New York (1958) 3. 28 BERGMANN, H. , Acta Phys. Austriaca 31 (1970) 354. 29 BIRK, M . , GOLDRING, G . , HILLMAN, P . , Nucl. Instrum. Methods 21 (1963) 197. 30 BORMANN, M . , BISSEM, H . H . , MAGIERA, E . , WARNEMÜNDE, R., Nucl. Phys. A157 (1970) 481. 31 BOSTROM, N . A . , HUDSPETH, E. L. , MORGAN, I. L. , Phys. Rev. 99 (1955) 643 A. 32 BORMANN, M . , CIERJACKS, S . , LANGKAU, R., NEUERT, H . , POLLEHN, H . , J. Phys. Rad. 22(1961)602. 33 BORMANN, M . , CIERJACKS, S . , LANGKAU, R., NEUERT, H . , Z. Phys. 166 (1962) 477. 34 BORMANN, M . , Z. Naturforsch. 17a (1962) 479. 35 BORMANN, M . , CIERJACKS, S . , FRETWURST, E . , GIESECKE, K . - J . , NEUERT, H . , POLLEHN, H . ,
Z . Phys. 174 (1963) 1. 36 BONAZZOLA, G . C . , BROUETTO, P. , CHIAVASSA, E . , SPINOGLIO, R., PASQUARELLI, A . , Nucl.
Phys. 51 (1964) 337. 37 BORMANN, M . , FRETWURST, E. , SCHEHKA, P. , WREGE, G . , BÜTTNER, H . , LINDNER, A . ,
MELDNER, H . , Nucl. Phys. 63 (1965) 438. 38 BORMANN, M . , SCHEHKA, P. , DREYER, F . , FRETWURST, E. , Rep. EANDC(E)57"U", NEA, Paris
(1965) 17. 39 BORMANN, M . , ZIELINSKI, U . , DREYER, F . , Rep. EANDC(E)66"U", NEA, Paris (1966) 42. 40 BORMANN, M . , DREYER, F . , SEEBECK, U. , VOIGTS, W. , Z. Naturforsch. 21a (1966) 988. 41 BORMANN, M . , DREYER, F . , NEUERT, H . , RIEHLE, I . , ZIELINSKI, U . , Nuclear Data for Reactors -
1966 (Proc. Conf. Paris, 1966) 1, IAEA, Vienna (1967) 225. 42 BORMANN, M . , RIEHLE, I . , Z. Phys. 207 (1967) 64. 43 BORMANN, M . , BEHREND, A . , RIEHLE, I . , VOGEL, O. , Nucl. Phys. A115(1968) 309. 44 BORMANN, M . , LAMMERS, B., Nucl Phys. A130(1969) 195. 45 RAO, P . , WOOD, R .E . , PALMS, J . M . , FINK, R. W. . Phys. Rev. 3Ç (1971) 629. 46 BROLLEY, J . E . . FOWLER, J. L., SCHLACKS, L. K . . Phys. Rev. 88 (1952) 618. 47 BRILL, O . D . , VLASOV, N . A . , KALININ, S. P . , SOKOLOV, L. S . , Sov. Phys. - Dokl. 6 (1961) 24. 48 BRAMLITT, E. T . , FINK, R. W. , J. Inorg. Nucl. Chem. 24 (1962) 1321. 49 BRAMLITT, E. T . , FINK, R. W. , Phys. Rev. 131 (1963) 2649.
FAST NEUTRON CROSS-SECTIONS 1 3 1
50 BROADHEAD, K . G . , SHANKS, D . E . , HEADY, H . H . , Phys. Rev. 139 (1965) B 1525. 51 BRZOSKO, J . , DECOWSKI, P . , SIWEK-DIAMENT, K. , WILHELMI, Z. , Nucl. Phys. 74 (1965) 438. 52 BRZOSKO, J . , IBJ Rep. 795/I /PL (1967) 53 BRAUN, H . , SCHULZE, W. , Radiochera. Acta 9 (1968) 22. 54 BRZOSKO, J . , GIERUK, E. , SOLTAN, A. , WILHELMI, Z . , Nucl. Phys. A123(1969) 603. 55 BUTLER, J. P . , SANTRY, D. C . , Can. J. Chem. 39(1961) 689. 56 BUTLER, J. P . , SANTRY, D. C . , Can. J. Phys. 41 (1963) 372. 57 CATRON, H . C . , GOLDBERG, M . D . , HILL, R. W., LeBLANC, J . M . , STOERING, J. P . , TAYLOR, C . J . ,
WILLIAMSON, M . A . , Phys. Rev. 123 (1961) 218. 58 CALVI, G . , POTENZA, R., RICAMO, R., VINCIGUERRA, D. , Nucl. Phys. 39 (1962) 621. 59 CARLES, C . , C. R. 257 (1963) 659. 60 CABE, j . , LAURAT, M . , YUON, P. , Rep. EANDC(E)49, NEA, Paris (1963) L 82. 61 CARROLL, E .E . , J r . , SMITH, G. C., STOOKSBERRY, R. W. , Trans. Am. Nucl. Soc. 7 (1964) 268. 62 CARROLL, E. E., J r . , SMITH, G . C . , Nucl. Sei. Eng. 22 (1965) 411. 63 CARSTENS, W., Diplomarbeit , Hamburg (1967). 64 CEVOLANI, M . , PETRALIA, S. , Nuovo Cim. 26 (1962) 1328. 65 CHITTENDEN, D . M . , GARDNER, D . G . , FINK, R. W., Phys. Rev. 122 (1961) 860. 66 CHITTENDEN, D . M . , GARDNER, D . G . , Annu. Prog. Rep. Nucl. Chem. (1961). 67 CHURSIN, G . P . , GONCHAR, V . Y . , ZALYUBOVSKIJ, 1.1., KLUCHAREV, A. P . , Sov. Phys. - JETP
44 (1963) 472. 68 CHOJNACKI, S . , Int. Conf. Study of Nuclear Structure with Neutrons, Antwerp (1965). 69 CHOJNACKI, S . , DECOWSKI, P . , GIERUK, E., GROCHULSKI, W., MARCINKOWSKI, A . , SIWEK, K . ,
SLEDZINSKA,. I . , WILHELMI, Z . , Int. Conf. Study of Nuclear Structure with Neutrons, Antwerp (1965). 70 CHATTERJEE, A . , MITRA, B., GHOSE, A . M . , Symp. Nuclear Physics and Solid State, Kanpur, India
(1967) 363. 71 CIERJACKS, S . , Diplomarbeit , Hamburg (1962). 72 COON, J . H . , Phys. Rev. 80 (1950) 488. 73 COHEN, B . C . , Phys. Rev. 81 (1952) 184. 74 COHEN, A. V . , WHITE, P. H . , Nucl. Phys. 1 (1956) 73. 75 COCHRAN, D. R. F . , HENKEL, R. L . , private communicat ion (1958). 76 COX, A . J . , CRUMPTON, D . , Nature (London) 216 (1967) 996. 77 CRANBERG, L. , LEVIN, J. S . , private communica t ion (1960). 78 McCRARY, J . H . , MORGAN, I. L., Bull. Am. Phys. Soc. 5 (1960) 246. 79 CROSS, W . G . . CLARKE, R. L., MORIN, K . , SLINN, G . , AHMED, N . M . , BEG, K. , Bull. Am. Phys.
Soc. 7 (1962) 335. 80 CROSS, W . G . , CLARKE, R. L., Prog. Rep. AECL-1542 (1962). 81 CROSS, W.G. , CLARKE, R. L. , MORIN, K. , SLINN, G. , AHMED, N . M . , BEG, K. , Rep. EANDC(CAN)16L,
NEA, Paris (1963). 82 CRUMPTON, D . , J. Inorg. Nucl. Chem. 31 (1969) 3727. 83 CRUMPTON, D . , COX, A . J . , COOPER, P . N . , FRANÇOIS, P .E . , HUNT, S . E . , J. Inorg. Nucl. Chem.
31 (1969) 1. 84 CSIKAI, J . , GYARMATI, B., HUNYADI, I . , Nucl . Phys. 46 (1963) 141. 85 CSIKAI, J . , Int. Conf. Study of Nuclear Structure with Neutrons, Antwerp (1965) 102. 86 CSIKAI, J . , Acta Phys. Hung. 21 (1966) 229. 87 CSIKAI, J . , ATOMKI (At. Kut. In tez . ) Kozl. 8 (1966) 79. 88 CSIKAI, J . , PETO', G . , Acta Phys. Hung. 23 (1967) 87. 89 CUZZOCREA, P. , Nuovo Cim. 16 (1960) 450. 90 CUZZOCREA, P . , PAPPALARDO, P. , Nucl. Phys. 48 (1963) 686. 91 CUZZOCREA, P . , NOTARRIGO, S . , PERILLO, E. , Nuovo Cim. 52B (1967) 476. 92 CUZZOCREA, P . , PERILLO, E. , NOTARRIGO, S. , Nucl. Phys. A103 (1967) 616. 93 CUZZOCREA, P . , PERILLO, E. , NOTARRIGO, S . , Nuovo Cim. 54B (1968) 53. 94 CURZIO, G . , SON A, P . , Nuovo Cim. 54B (1968) 319. 95 DEPRAZ, M . J . , LEGROS, G . , SALIN, R., J. Phys. Rad. 21 (1960) 377. 96 DEBERTIN, K . , RÖSSLE, E. , Nucl. Phys. 70 (1965) 89. 97 DECOWSKI, P . , GROCHULSKI, W. , MARCINKOWSKI, A. , SIWEK, K . , SLEDZINSKA, I . , WILHELMI, Z . ,
Nucl. Phys. A112 (1968) 513. 98 DECOWSKI, P . , GROCHULSKI, W. , MARCINKOWSKI, A. , KAROLYI, J . , PIOTROWSKI, J . , SAAD, E. ,
SIWEK-WILCZYNSKA, K . , TURKIEWICZ, I . M . , WILHELMI, Z . . Inst. Badan Jadrowych, Rep. IBJ 1197/I/PL (1970).
132 BORMANN et al.
99 DILG, W. , VONACH, H . , WINKLER, G . . HILLE, P . , Nucl. Phys. AU8(1968) 9. 100 DILG, W. , VONACH, H . , Rep. EANDC(E)89"U", NEA, Paris (1968). 101 DREYER, F . , Diplomarbei t , Hamburg (1966). 102 DRUZHININ, A . A . , LBOV, A . A . , BILIBIN, L. P . , Sov. J. Nucl . Phys. 4 (1967) 366. 103 DUDLEY, J . M . , CLASS, C . M . , Phys. Rev. 94 (1954) 807. 104 FERGUSON, J. M . , THOMPSON, W.E . , Phys. Rev. 118 (1960) 228. 105 FERGUSON, J . M . , ALBERGOTTI, J . , Nucl. Phys. A98(1961) 65. 106 FEICHT, E . , VONACH, H . , Nukleonik 10 (1967) 58. 107 FISCHER, G . J . , Phys. Rev. 108 (1957) 99. 108 FLEROV, N. , J. Nucl. Energy 11 (1959) 174. 109 FOWLER, J. L. , SLYE, J . M . , Phys. Rev. 77 (1950) 787. 110 FORBES, S . G . , Phys. Rev. 88 (1952) 1309. 111 FUKUZAWA, F . , J. Phys. Soc. Jap. 16 (1961) 2371. 112 GABBARD, F . , pr ivate communica t ion (1961), quoted in J. Nucl. Energy AB 19 (1965) 907. 113 GABBARD, F . , pr ivate communica t ion (1961), quoted in Rep. BNL-325 (1965). 114 GABBARD, F . , KERN, B .D . , Phys. Rev. 128 (1962) 1276. 115 GANGRSKIJ, Y. P . , KHARISOV, I. F . , Sov. J. Nucl. Phys. 1 2 ( 1 9 7 1 ) 6 1 1 . 116 GLAGOLEV, V . L . , KOVRIZHNTKH, O . M . , MAKATZOV, Y . V . , YAMPOLSKIJ, P . A . , Sov. Phys. -
JETP 9 (1959) 742. 117 GLAGOLEV, V . L . , MOROZOV, A . M . , YAMPOLSKIJ, P . A . , Sov. Phys. - JETP 12 (1961) 1131. 118 GLAGOLEV, V . L . , YAMPOLSKIJ, P . A . , Sov. Phys. - JETP 13 (1961) 520. 119 GLOVER, R. N . , WEIGOLD, E . , Nucl. Phys. 29 (1962) 309. 120 GONZALEZ, L., RAPAPORT, J . , LOEF, J . J . van, Phys. Rev. 120 (1960) 1319. 121 GONZÁLEZ, L., TRIER, A . , LOEF, J . J . van, Phys. Rev. 126 (1961) 271. 122 GOLCHERT, N . W . , GARDNER, D . G . , SEDLET, J . , Nucl. Phys. 73 (1965) 349. 123 GRAVES, E.R. , DAVIS, R. W. , Phys. Rev. 97 (1955) 1205. 124 GRÜNDL, J. A . , HENKEL, R. L., PERKINS, B. L. , Phys. Rev. 109 (1958) 425. 125 GRAVES, CONNOR, FORD, WARREN, cited in VANDENBOSCH, R., HUIZENGA, J .R . , MILLER, W . F . ,
KEBERLE, E . M . , Nucl. Phys. 25 (1961) 511. 126 GRANGER, B. , LONGUEVE, M. , Rep. EANDC(E)49, NEA, Paris (1963) 8. 127 GRIMELAND, B.. OPSAHL-ANDERSEN, P . , Nucl. Phys. 51 (1964) 302. 128 GRIMELAND, B., KJELLSBY, E., VINES, J . , Phys. Rev. 137(1965) B 878. 129 GRISSOM, J . T . , KOEHLER, D. R., Phys. Rev. 142 (1966) 725. 130 GRAY, P .R . , ZANDER, A .R . , EBREY, T . G . , Nucl. Phys. 75 (1966) 215. 131 GROCHULSKI, W. , KAROLYI, J . , MARCINKOWSKI, A. , PIOTROWSKI, J . , SAAD, E . , SIWEK, K. ,
WILHELMI, Z . , Rep. INR 1197/I/PL (1970). 132 HAVLIK, E . . Acta Phys. Austriaca 34 (1971) 209. 133 HÄRING, H . , VONACH, H . , FEICHT, E . J . , Z. Phys. 244 (1971) 352. 134 HASAN, S . S . , PRASAD, R., SEGHAL, M. L., Nucl. Phys. A181(1972) 101. 135 HANKLA, A . K . , FINK, R. W., Nucl. Phys. A180(1972) 157. 136 HENKEL, R. L. , Private communica t ion (1954), ci ted in Rep. BNL-325, Suppl. 2 (1964). 137 HEERTJE, I . , DEVENNE, L., NAGEL, W., ATEN, A. H. W. , J r . , Physica (NL) 30 (1964) 1762. 138 HILLE, P . , österr . Akad. Wiss. 98 (1961) 200, Anz. 12. 139 HILLMAN, M . , Nucl. Phys. 37 (1962) 78. 140 HILLMAN, M . , SHIKATA, E. , Rep. BNL-11506 (1967). 141 HILLMAN, M . , SHIKATA, E. , J. Inorg. Nucl. Chem. (1969) 909. 142 HOPKINS, J . , DRAKE, D . , Nucl. Phys. A107(1968) 139. 143 HOLMBERG, M . , HANSÉN, J . , Nucl. Phys. A129 (1969) 305. 144 HÖLSCHER, H . H . , Diplomarbeit , Hamburg (1972). 145 HILLE, P . , MÜNZER, H. , Acta Phys. Austriaca 23 (1966) 44. 146 HUGHES, D . , SCHWARTZ, R., private communica t ion (1958), ci ted in LISKIEN, H . , PAULSEN, A . ,
Rep. EUR 119e (1968). 147 HUDSON, O. M . , MORGAN, I .L . , Bull. Am. Phys. Soc. 11 4 (1959) 97. 148 HUSAIN, L., KURODA, P. K . , Nucl. Phys. A114 (1968) 663. 149 HUSAIN, L. , BARI, A. , KURODA, P. K . , Phys. Rev. 1Ç(1970) 1233. 150 HÜRLIMANN, T., HUBER, P., Helv. Phys. Acta 28 (1955) 33. 151 IMHOF, W . L . , private communica t ion (1960), ci ted in Rep. BNL-325 (1965). 152 IMHOF, W. L. , private communica t ion (1961), c i ted in Rep. BNL-325 (1965). 153 IVANENKO, V . V . , PETRZHAK, K. A . , POTAMANOV, V . l . , Sov. J. Nucl. Phys. 6 (1968) 7. 154 IVANENKO, V . V . , PETRZHAK, K. A. , Sov. J. Nucl. Phys. 9 (1969) 152.
FAST NEUTRON CROSS-SECTIONS 133
155 JERONYMO, J . M . F . , MANI, G. S . , OLKOWSKY, J . , SADEGHI, A. , WILLIAMSON, C . F . , Nucl. Phys. 47 (1963) 157.
156 JERONYMO, J . M . F . , MANI, G. S . , OLKOWSKY, J . , SADEGHI, A. , WILLIAMSON, C .F . , J. Phys. (Paris) 24 (1963) 816.
157 JOHNSON, R. G . , SALISBURY, S. , VAUGHN, F . J . , Rep. LMSC-4-50-62-1 (Oct. 1962). 158 DeJUREN, J . A . , STOOKSBERRY, R. W., WALLIS, M . , Phys. Rev. 127 (1962) 1229. 159 KANTELE, J . , GARDNER, D . G . , Nucl. Phys. 35 (1962). 160 KARAM, R. A . , PARKINSON, T. F . , PANCZYK, M . F . , Rep. NP-12336 (1962). 161 KAROLYI, J . , CSIKAI, J . , PETÖ, G . , Nucl Phys. A122 (1968) 234. 162 KANDA, Y . , J. Phys. Soc. Jap. 24 (1968) 17. 163 KERN, B .D. , THOMPSON, W.E . , FERGUSON, J . M . , Nucl. Phys. 10 (1959) 226. 164 KHURANA, C . S . , HANS, H. S . , Nucl. Phys. 13 (1959) 88. 165 KHURANA, C.S., HANS, H. S . , Nucl. Phys. 28 (1961) 560. 166 KLEMA, E. , HANSON, A . , Phys. Rev. 73 (1948) 106. 167 KLYUCHAREV, A. P . , USHAKOV, U . V . , CHURSIN, G . P . , Sov. Phys. - JETP 19 (1964) 1002. 168 KNIGHT, J. D. , SMITH, R. K . , WARREN, B., Phys. Rev. 112 (1958) 259. 169 KNEISSL, K . , SCHNEIDER, H . , VÖLPEL, R . , WÖLCKEN, K . , Nucl.PYiys. A13S (1969) 395. 170 KOEHLER, D. R., ALFORD, W. L., Phys. Rev. 119 (1960) 311. 171 KOEHLER, D.R. , ALFORD, W. L., Bull. Am. Phys. Soc. 5 (1960) 443 C l l . 172 KONIJN, J . , LAUBER, A . , Nucl. Phys. 48 (1963) 191. 173 KÖNIG, V . , Nucl. Phys. 71 (1965) 497. 174 KOLAR, Z . , STROHAL, P . , CINDRO, N . , J. Inorg. Nucl. Chem. 27 (1965) 2471. 175 KONDAIAH, E. , RANAKUMAR, N. , FINK, R. W. , Nucl. Phys. A120(1968) 337. 176 KOZLOWSKI, T . , MOROZ, Z . , RURARZ, E . , WOJTKOWSKA, J . , Acta Phys. Pol. 33 (1968) 409. 177 KREGER, W., KERN, B .D . , Phys. Rev. 113 (1959) 890. 178 KUMABE, I . . POULARIKAS, A . D . , PREISS, I. L., GARDNER, D . G . , FINK, R. W . , Phys, Rev. U 7
(1960) 1568. 179 LANGMANN, J . , pr ivate communica t ion (1962), quoted in Rep. BNL-325 (1966). 180 LANGKAU, R., Z. Naturforsch. 18a (1963) 914. 181 LAUBER, A. , MALMSKOG, S . , Nucl. Phys. 73 (1965) 234. 182 LEBEDEV, P . , J. Nucl. Energy 11 (1959) 39. 183 LETESSIER, J . , DALMAS, J . , C. R. 259 (1964) 4620. 184 LISKIEN, H . , PAULSEN, A. , J. Nucl. Energy AB 19 (1965) 73. 185 LISKIEN, H . , PAULSEN, A . , Nucl. Phys. 63 (1965) 393. 186 LISKIEN, H . , PAULSEN, A . , Nukleonik 8 (1966) 315. 187 LUL1C, S. , STROHAL, P . , ANTOLKOVIC, B., PAIC, G . , Nucl. Phys. A119 (1968) 517. 188 LU, W . - D . , FINK, R. W., Radiochem. Acta 12 (1969) 61. 189 LU, W . - D . , RANAKUMAR, N. , FINK, R. W. , Phys. Rev. 1C(1970) 358. 190 LÖSCHER, E . , RICAMO, R., SCHERRER, P. , ZÜNTI, W. , Helv. Phys. Acta 23 (1950) 561. 191 MARTIN, H . C . , DIVEN, B . C . , Phys. Rev. 86 (1952) 565. 192 MARTIN, H . C . , TASCHEK, R. F . , Phys. Rev. 89 (1953) 1302. 193 MARTIN, H . C . , Phys. Rev. 93 (1954) 498. 194 MARION, J .B . , BRUGGER, R. M . , Phys. Rev. 100 (1955) 69. 195 MARION, J. B., BRUGGER, « . M . , CHAPMAN, R. A. , Phys. Rev. 101 (1956) 247. 196 MANI, G . S . , McCALLUM, G . ! . , FERGUSON, A . T . G . , Nucl . Phys. 19(1960) 535. 197 MANI, G . S . , TOMBRELLO, T . A . , RAO, D. A. A . S . N . , Nucl. Phys. 21 (1960) 344. 198 MAJUMDAR, N . K . , CHATTERJEE, A . , Nucl. Phys. 41 (1963) 192. 199 MANGAL, S . K . , GILL, P . S . , Nucl. Phys. 49 (1963) 510. 200 MANGAL, S. K. , KHURANA, C. S . , Nucl. Phys. 69 (1965) 158. 201 MATHUR, S. C . , MORGAN, I . L . , Nucl. Phys. 75 (1966) 561. 202 MATHER, D . S . , PAIN, L. F . , Rep. AWRE-O-47 (1969). 203 METZGER, J . , ALDER, F . , HUBER, P . , Helv. Phys. Acta 21 (1948) 278. 204 MEADOWS, J. W. , WHALEN, J. F . , Phys. Rev. 130 (1963) 2022. 205 MENLOVE, H . O . , COOP, K. L., GRENCH, H . A . , Phys. Rev. 163 (1967) 1308. 206 MENON, M. P . , CUYPERS, M. Y . , Phys. Rev. 156 (1967) 1340. 207 MINETTI, B., PASQUARELLI, A . , Nuovo C im. 44 (1966) 460. 208 MINETTI, B., PASQUARELLI, A . , Z. Phys. 207 (1967) 132. 209 MINETTI, B., PASQUARELLI, A. , Nuovo Cim. 50 2B (1967) 367. 210 MINETTI, B., PASQUARELLI, A. , Nucl. Phys. A118 (1968) 449. 211 MINETTI, B., PASQUARELLI, A . , Z. Phys. 217 (1968) 83.
134 BORMANN et al .
212 MORITA, S. , J. Phys. Soc. Jap. 13 (1958) 431. 213 MÜNZER, H . , VONACH, H . , österr . Akad. Wiss. 96 (1959) 120. 214 MUKHERJEE, S. K . , GANGULY, A. K . , MAJUMBER, N. K. , Proc. Phys. Soc. 77_(1961) 508. 215 NAKAI, K . , GOTOH, H . , AMANO, H. , J. Phys. Soc. Jap. 17 (1962) 1215. 216 NAGEL, W. , ATEN, A . H . W . , Jr . , Physica 31 (1965) 1091. 217 NAGEL, W. , ATEN, A. H. W. , J r . , J. Nucl. Energy AB 20 (1966) 475. 218 O'CONNOR, L. P . , PERKIN, J . L . , J. Inorg. Nucl. Chem. 13 (1960) 5. 219 OKUMURA, S . , Nucl. Phys. A93 (1967) 74. 220 OMS, L . A . , PALMS, J. A . , RAO, P . , WOOD, R.E., FINK, R. W., Bull. Am. Phys. Soc. 13 (1968) 1699. 221 PAUL, E. B., CLARKE, K. L., Can. J. Phys. 31 (1953) 267. 222 PAULSEN, A. , LISKIEN, H . , Nukleonik 7 (1965) 117. 223 PAULSEN, A . , LISKIEN, H . , J. Nucl . Energy AB 19 (1965) 907. 224 PAI, H. L., Can. J. Phys. 44 (1966) 2337. 225 PASQUARELLI, A . , Nucl. Phys. A93(1967) 218. 226 DRUZHININ, A . A . , IVANOVA, N. I . , LBOV, A . A . , Yad. Fiz. 14 (1971) 682. 227 PAULSEN, A. , Nukleonik 10 (1967) 91. 228 PARTINGTON, D . , CRUMPTON, D . , HUNT, S . E . , Analyst 95 (1970) 257. 229 PAULSEN, A. , WIDERA, R., Z. Phys. 238 (1970) 23. 230 PERKIN, J.L. , COLEMAN, R. F . , J. Nucl. Energy AB 14 (1961) 69. 231 PERKIN, J. L., pr ivate communica t ion (1961), quoted in Rep. BNL-325, Suppl. 2 (1966). 232 PEIL, A. , Nucl. Phys. 66 (1965) 419. 233 PETO, G . , BORNEMISZA-PAUSPERTL, P . , KAROLYI, J . , Acta Phys. Hung. 25 (1967) 91. 234 PHILLIPS, J . A . , private communica t ion (1956), quoted in Ref. 230. 235 PICARD, J . , WILLIAMSON, C . F . , J. Phys. (London) 24 (1963) 813. 236 PICARD, J . , WILLIAMSON, C . F . , Nucl. Phys. 63 (1965) 673. 237 POOLE, M. J . , pr ivate communica t ion (1954), quoted in Ref. 230. 238 POULARIKAS, A . , FINK, R. W. , Phys. Rev. 115 (1959) 989. 239 POULARIKAS, A . , CUNNINGHAM, J . , McMILLAN, W., FINK, R. W. , J. Inorg. Nucl. Chem. 13
(1966) 196. 240 POULARIKAS, A . , FINK, R. W. , GARDNER, D . G . , Annu. Prog. Rep. Nucl. Chem. (1960). 241 POLLEHN, H . , NEUERT, H . , Z. Naturforsch. 16a (1961) 227. 242 POLLEHN, H . , Diplomarbeit , Hamburg (1961). 243 POULARIKAS, A . , GARDNER, D . G . , private communicat ion (1962), quoted in NEUERT, H . , POLLEHN, H . ,
Rep. EUR-122e (1963). 244 PRESTWOOD, R.J . , Phys. Rev. 98 (1955) 47. 245 PREISS, I. L., FINK, R. W. , Nucl. Phys. 15 (1960) 326. 246 PRESTWOOD, R.J . , BAYHURST, B. P . , Phys. Rev. 121 (1961) 1438. 247 PRASAD, R., SARKAR, D . C . , KHURANA, C . S . , Nucl. Phys. 88 (1966) 349. 248 PRASAD, R., SARKAR, D. C . , Nucl. Phys. A94(1967) 476. 249 PRESSER, G . , BASS, R., KRÜGER, K. , Nucl . Phys. A131(1969) 679. 250 RAMA PRASAD, P. , RAO, J .R . , KONDAIAH, E. , Nucl. Phys. A138 (1969) 85. 251 PURSER, K . H . , TITTERTON, E . , Aust. J. Phys. 12 (1959) 103. 252 QAIM, S. M . , EJAZ, M . , J. Inorg. Nucl. Chem. 30 (1968) 2577. 253 QAIM, S . M . , J. Inorg. Nucl. Chem. 32 (1970) 1799. 254 QAIM, S. M . , WÖLF LE, R., STÖCKLIN, G . , in Chemica l Nuclear Data, Measurements and Applications
(Proc. Conf. Canterbury, 1971), Inst, of Civi l Engineers, London (1971). 255 QAIM, S . M . , Nucl. Phys. A185(1972) 614. 256 RAPAPORT, J . , LOEF, J . J . , van, Phys. Rev. 114 (1958) 565. 257 RAYBURN, L. A. , Phys. Rev. 122 (1961) 168. 258 RAYBURN, L. A. , Bull. Am. Phys. Soc. 7 (1962) 335. 259 RAYBURN, L. A . , Phys. Rev. 130 (1963) 731. 260 RAYBURN, L. A . , Bull. Am. Phys. Soc. 8 (1963) 60, 121. 261 RAMAKUMAR, N . , KONDAIAH, E . , FINK, R. W., Nucl. Phys. A122 (1968) 679. 262 REED, C . H . , Rep. TID-11929 (1960). 263 RICAMO, R., Nuovo Cim. 8 (1951) 383. 264 RIEDER, R., MÜNZER, H . , Acta Phys. Austriaca 23 (1966) 42. 265 RIMMER, E . , FISHER, P . , Nucl. Phys. A108(1968) 567. 266 ROSEN, L. , STEWART, L. , Phys. Rev. 107 (1957) 824. 267 ROETZER, P . , Nucl . Phys. A109(1968) 694. 268 RURARZ, E . . HARATYM, Z . , PIETRZYKOWSKI, M . , SULIK, A . , IBJ Rep. 1197/I/PL (1970).
FAST NEUTRON CROSS-SECTIONS 135
269 SAYRES, A .R . , IONES, K. W., W U . ' C . S . , Phys. Rev. 122 (1961) 1853. 270 SAKISAKA, M . , SAEKI, B., TOMITA, M . , FUKU2AWA, F . , J. Phys. Soc. Jap. 16 (1961) 1869. 271 SANTRY, B.C., BUTLER, J. P . , Can. J. Chem. 41 (1963) 123. 272 SANTRY, D. C . , BUTLER, J. P . , Can. J. Phys. 42 (1964) 1030. 273 SALISBURY, S .R . , CHALMERS, R. A. , Phys. Rev. 140 (1965) B 305. 274 SANTRY, D . C . , BUTLER, J . P . , Can . J. Phys. 44 (1966) 1183. 275 SCALAN, R .S . , FINK, R. W. , Nucl. Phys. 9 (1958) 334. 276 SCHMITT, H. W. , HALPERIN, J . , Phys. Rev. 121 (1961) 827. 277 SCHEIMBAUER, P. , HILLE, P . , Nucl. Phys. A102(1967) 534. 278 SCOBEL, W. , BORMANN, M . , Z. Naturforsch. 25a (1970) 1406. 279 SEEMANN, K. W. , MOORE, W.E. , Bull. Am. Phys. Soc. 6 (1961) 237. 280 SETHI, B., MUKHERJEE, S. K . , Nucl. Phys. 85 (1966) 227. 281 SHUNK, E .R . , WAGNER, R. T . , HEMMENDINGER, A. , Bull. Am. Phys. Soc. 7 (1962) 334. 282 SHIOKAWA, T . , YAGI, M . , KAJI, H . , SASAKI, T . , J. Inorg. Nucl. Chem. 30 (1968) 1. 283 SMITH, D . M . , BOSTROM, N . A . , HUDSPETH, E .L . , Phys. Rev. 117 (1960) 514. 284 SPENKE, H . , Nucl. Phys. 51 (1964) 329. 285 STELSON, P. H . , CAMPBELL,E.C., Phys. Rev. 106 (1957) 1252. 286 STROHAL, P. , CINDRO, N . , EMAN, B., Nucl. Phys. 30 (1962) 49. 287 STRAIN, J . E . , ROSS, W . J . , Rep. ORNL-3672 (1965)., 288 STEINER, E. , HUBER, P. , SALA THE, W. , WAGNER, R., Helv. Phys. Acta. 43 (1970) 17. 289 SURESH, C . , MATHUR, S . C . , MORGAN, I. L., Nucl. Phys. 75 (1966) 561. 290 TARTARCZUK, J .R . , MEDICUS, H . A . , Phys. Rev. 143 (1966) 818. 291 TERRELL, J . , HOLM, D . M . , Phys. Rev. 109 (1958) 2031. 292 TEWES, H . A . , CARETTO, A . A . , MILLER, A. E. , Bull. Am. Phys. Soc. 4 (1959) 445. 293 TEWES, H . A . , CARETTO, A . A . , MILLER, A. E. , NETHAWAY, D. R., Rep. UCRL-6028T (1960). 294 TEMPERLEY, J . K . , Phys. Rev. 178 (1969) 1904. 295 TIWARI, P . N . , KONDAIAH, E. , Phys. Rev. 167 (1968) 1091. 296 TRIER, A . , Z. Naturforsch. 17a (1962) 275. 297 URECH, S . , JEANUET, E. , ROSSEL, J . , Helv. Phys. Acta 34 (1961) 954. 298 VANDENBOSCH, R., HUIZENGA, J .R . , Phys. Rev. 120 (1960) 1313. 299 LOEF, J . I . . van, Nucl. Phys. 24 (1961) 340. 300 VAUGHN, F . J . , private communica t ion (1963), cited in Rep. BNL-325 (1965). 301 VENUGOPALA RAO, P. , FINK, R. W., Phys. Rev. 154 (1967) 1023. 302 VENUGOPALA RAO, P. , WOOD, R. E. , PALMS, J . M . , FINK, R. W., Phys. Rev. 3C (1971) 629. 303 VINITSKAYA, G . P . , LEVKOVSKIJ, V. N . , SOKOL'SKIJ, V . V . „ Sov. J. Nucl. Phys. 6 (1968) 174. 304 VONACH, H . , MÜNZER, H . , Österr. Akad. Wiss. _96 (1959) 120. 305 VONACH, H . , Proc. 26. Physikertagung, Vienna (1961) 67. 306 VONACH, H . , Österr. Akad. Wiss. 9(1961) 116. 307 VONACH, H . , VONACH, W. G . , MÜNZER, H . , SCHRAMMEL, P . , Rep. EANDC(E)89"U", NEA, Paris
(1968) 37. 308 VONACH, H . , private communica t ion , c i ted in Nucl. Phys. A130(1969) 195. 309 VONACH, H . , HILLE, M . , STENGL, G . , BREUNLICH, W., WERNER, E . , Z. Phys. 237 (1970) 155. 310 WAGENER, H . H . , Diplomarbeit , Hamburg (1972). 311 WEIGOLD, E. , Aust. J. Phys. 13 (1960) 186. 312 WEIGOLD, E. , GLOVER, R. N . , Nucl. Phys. 32 (1962) 106. 313 WENUSCH, R., VONACH, H. , Österr. Akad. Wiss., Anz. 99 (1962) 1. 314 WENUSCH, R., VONACH, H. , Österr. Akad. Wiss., Anz. 1 (1962) 1. 315 WEN-DEHLU, RANA KUMAR, N. , FINK, R. W. , Phys. Rev. 1Ç(1970) 350. 316 WILLE, R. G . , FINK, R. W., Phys. Rev. 112 (1958) 1950. 317 WILLE, R. G . , FINK, R. W., Phys. Rev. 118 (1960) 242. 318 WILLIAMSON, C . F . , Phys. Rev. 122 (1961) 1877. 319 WILLIAMSON, C . F . , PICARD, J . , J. Phys. Rad. 22 (1961) 651. 320 WINIWARTER, P . , Nucl. Phys. A158 (1970) 77. 321 WOOD, R. E. , COOK, W. S. , GOODGAME, J .R . , FINK, R. W., Phys. Rev. 154 (1967) 1108. 322 WÖLFER, G. , BORMANN, M . , Z. Phys. 194 (1966) 75. 323 Y ASUMI, S . , J. Phys. Soc. Jap. 12 (1957) 443. 324 YU-WEN YU, GARDNER, D . G . , Nucl . Phys. A98(1967) 451. 325 ZIELINSKI, U . , Diplomarbeit , Hamburg (1965). 326 ZYSIN, Yu. A. , KOVRIZHNYKH, A . A . , LBOV, A . A . , SEL' CHKOV, L. I . , At. Ehnerg. 8 (1960) 360. 327 MOGHARRAB, R., NEUERT, H . , Atomkernenergie 19 (1972) 107.
136 BORMANN et al .
328 TRAUTMANN, N . , DENIG, R., HERRMANN, G . , Radiochim. Acta 11 (1969) 168. 329 COLEMAN, R .F . , HAWKER, B.E., O'CONNOR, L. P . , PERKIN, J. L., Proc. Phys. Soc. 73 (1959) 215. 330 KULIS1C, P. , CINDRO, N. , STROHAL, P. , LALOVIC, B., Nucl. Phys. 73 (1965) 548. 331 HANKLA, A. K. , HAMILTON, J . H . , FINK, R. W. , Bull. Am. Phys. Soc. 15 (1970) 1372 EH8. 332 HANKLA, A. K. , HAMILTON, J . H . , FINK, R. W., Bull. Am. Phys. Soc. 13 (1968) 1421, 10. 333 MUKHERJEE, S. K . , BAKHRU, H. , Proc. Symp. Nuclear Physics and Solid State Physics, Bombay (1963) 244. 334 MEASON, J . L . , GANAPATHY, R., KURODA, P. K. , Radiochim. Acta 6 (1966) 26. 335 MINETTI, B., PASQUARELLI, A. , Nuovo Cim. 44B(1966) 5336. 336 RAMA PRASAD, P. , RAMA RAO, J . , KONDAIAH, E., Nucl. Phys. A125(1969) 57. 337 IHOCHI, ] . , WARD, T . E . , Phys. Rev. 166 (1968) 1173. 338 KHURANA, C .S . , GOVIL, I .M. , Nucl. Phys. 69 (1965)153. 339 ALFORD, W. L., KOEHLER, D .R . , Bull. Am. Phys. Soc. 10 (1965) 260 T5. 340 LEVKOVSKIJ, V . N . , KOVEL'SKAYA, G. E. , VINITSKAYA, G. P. , STEPANOV, V . M . , SOKOLSKIJ, V . V . ,
Sov. ]. Nucl. Phys. 8 (1969) 4. 341 LAGERWALL, T . , Z. Naturforsch. 20a (1965) 1583. 342 MARCAZZAN, G . M . , MENICHELLA SAETTA, E. , TONOLINI, F . , Nuovo Cim. 20 (1961) 903. 343 BLOSSER, H . G . , GOODMAN, C . D . , HANDLEY, T . H . , Phys. Rev. 110 (1958) 531. 344 BIZETTI, P . G . , BIZETTI-SONA, A . M . , BOCCIOLINI, M . , Nucl. Phys. 36 (1962) 38. 345 LEVKOVSKIJ, V. N. , VINITSKAYA, G . P . , STEPANOV, V . M . , Sov. J. Nucl. Phys. 10 (1969) 25. 346 LEVKOVSKIJ, V. N . , ARTEM' EV, O. I . , Sov. J. Nucl. Phys. 13 (1971) 529. 347 DZANTIEV, B .G. , LEVKOVSKIJ, V . N . , MALIEVSKIJ, A . D . , Sov. Phys. - Dokl. 2 (1958) 135. 348 LEVKOVSKIJ, V . N . , Sov. Phys. - JETP 18 (1964) 213. 349 LU, W. -D . , FINK, R. W. , Bull. Am. Phys. Soc. 13 (1968) 1422 DB 15. 350 CSIKAI, J . , BACSÔ, J . , DARÓCZY, A. , Nucl. Phys. 41 (1963) 316. 351 PRASAD, R., SARKAR, D. C . , KHURANA, C . S . , Nucl. Phys. 85 (1966) 476. 352 ALFORD, W. L., KOEHLER, D .R . , MANDEVILLE, C . E . , Phys. Rev. 123 (1961) 1365. 353 BRAMLITT, E. T . , FINK, R. W. , Annu. Rep. Arkansas (1962). 354 BRAMLITT, E. T . , GARDNER, D . G . , Annu. Prog. Rep. Nucl. Chem. (1961). 355 BROLLE Y, J . E . , BUNKER, M. E. , COCHRAN, D.R. F . , HENKEL, R. L., MIZE, J. P . , STARNER, J . W . ,
Phys. Rev. 99 (1955) 330. 356 BRAMLITT, E . T . , FINK, R. W., GARDNER, D. G. , POULARIKAS, A. , Phys. Rev. 125 (1962) 297. 357 BLOSSER, H . G . , GOODMAN, C . D . , HANDLEY, T . H . , RANDOLPH, M. L., Phys. Rev. 100 (1955) 422. 358 FINK, R. W., RAO, P . V . , WOOD, R. E., PALMS, J . M . , Phys. Rev. 3C (1971) 629. 359 FINK, R. W. , private communica t ion (1961), quoted in NEUERT, H . , POLLEHN, H. , Rep. EUR-122e (1963). 360 RAO, P. V . , WOOD, R. E., PALMS, J. M . , FINK, R. W., Bull. Am. Phys. Soc. 13 (1968) 602 II DE5. 361 FINK, R .W. , KONDAIAH, E . , RANAKUMAR, N. , Bull. Am. Phys. Soc. 13 (1968) 602 II DE6. 362 KJELBERG, A. , PAPPAS, A. L. , STEINNES, E. , Radiochim. Acta 5 (1966) 28. 363 RAO, P. V . , FINK, R. W. , Phys. Rev. 154 (1966) 1023. 364 MINETTI, B., PASQUARELLI, A., Nucl. Phys. A100 (1967) 186. 365 VINITSKAYA, G. P . . LEVKOVSKIJ, V . N . , SOKOL'SK1J, V . V . , KAZACHEVSKIJ, I . V . , Sov. J. Nucl .
Phys. 5 (1967) 839. 366 MEASON, J . L . , KURODA, P . K . , Phys. Rev. 138 (1965) B 1390. 367 PREISS, J. L., FINK, R. W. , Nucl. Phys. 15 (1960) 326. 368 PREISS, J. L., FINK, R. W. , GARDNER, D . G . , Annu. Prog. Rep. Nucl. Chem. (1960). 369 PAULSEN, A . , Z. Phys. 205 (1961) 226. 370 MINETTI, B., PASQUARELLI, A. , Z. Phys. 199 (1967) 275. 371 FREVERT, E. , Acta Phys. Austriaca 20 (1967) 304. 372 NIX, J . , CHITTENDEN, D . , GARDNER, D . G . , Annu. Prog. Rep. Nucl. Chem. (1961). 373 VONACH, H . , MÜNZER, H . , Österr. Akad. Wiss. Nov. 13 (1958) 199. 374 HUSAIN, L., KURODA, P. K . , J. Inorg. Nucl. Chem. 30 (1968) 355. 375 CROSS, W . G . , PAI, H. L. , private communica t ion (1963), quoted in Rep. BNL-325 (1966). 376 KARDONSKY, S. , FINSTON, H. L., WILLIAMS, E . T . , Phys. Rev. 4Ç (1971) 840. 377 RANAKUMAR, N. , KARTTUNEN, E., FINK, R. W. , Nucl. Phys. A128(1969) 333. 378 CZAPP, B., VONACH, H . , österr . Akad. Wiss. 2 (1960) 13. 379 GRAY, P. R., ZANDER, A .R . , EBREY, T. G . . Nucl. Phys. 62 (1965) 172. 380 NAGEL. W. . Rep. EANDC(E)76"U", NEA, Paris (1961) 59. 381 SINGH, J. J . , Bull. Am. Phys. Soc. 15 (1970) 1328. 382 ARON, P . M . , At. Ehnerg. 16 (1964) 370. 383 HEMINGWAY, J . D . , JAMES, R. H . . MARTIN, E. B .M. , MARTIN, G. R. , Proc. R. Soc. A 292 (1966) 180. 384 SALAIT A, G. N . , Nucl. Phys. A170(1971) 193.
FAST NEUTRON CROSS-SECTIONS 137
385 NURMIA, M . J . , FINK, R. W. , Nucl. Phys. 8 (1958) 139. 386 KAUL, O . N . , Nucl. Phys. 33 (1962) 171. 387 BORMANN, M . , JEREMIE, H . , ANDERSSON-LINDSTRÖM, G . , NEUERT, H . , POLLEHN, H . ,
Z. Naturforsch. 15a (1960) 200. 388 KANTELE, J. , FINK, R. W. , Bull. Am. Phys. Soc. 6 (1961) 252. 389 HEIBERG, S. A. , Phys. Rev. 96 (1954) 856. 390 BATTAT, M. E. , RIBE, F. L., Phys. Rev. 89 (1953) 80. 391 KULISIC, P. , AJDAClfi, V . , CINDRO, N . , LALOVIC, B., STROHAL, P . , Nucl. Phys. 54 (1964) 17. 392 SEEBECK, U . , BORMANN, M . , Rep. EANDC(E)57"U", NEA, Paris (1965) 18. 393 SEEBECK, U . , BORMANN, M . , Nucl. Phys. 68 (1965) 387. 394 KUMABE, I . , TAKEKOSHI, E. , OGATA, H . , TSUNEOKA, Y. , Phys. Rev. 106 (1957) 155. 395 DAVIS, E.A. , BASS, R., BONNER, T. W., WORLEY, D . M . , J r . , Bull. Am. Phys. Soc. 5 (1960) 110. 396 KNELLWOLF, T . , ROSSEL, J . , Helv. Phys. Acta 39 (1966) 376. 397 KUMABE, I . , TAKEKOSHI, E. , OGATA, H. , TSUNEOKA, Y. , J. Phys. Soc. Jap. 13 (1958) 325. 398 IRFAN, M . , JACK, W., Proc. Phys. Soc. 8J. (1963) 808. 399 FRYE, G . , Phys. Rev. 93 (1953) 1086. 400 CHATTERJEE, A . , Nucl. Phys. 60 (1964) 273. 401 PRASAD, R., SARKAR, D . , Nuovo.Cim. 3A 3 (1971) 467. 402 BORN EM IS ZA, G . , Nucl. Sei. Abstr. 17 (1963) 932, No. 7198. 403 ALBURGER, D . E . , ELWYN, A. , GALLMANN, A. , KANE, J . V . , OFER, S. , PIXLEY, R. E . , Phys. Rev.
Lett. 2 (1959) 110. 404 MILLER, D . G . , private communica t ion (1961), quoted in Rep. BNL-325, Suppl. 2 (1964). 405 FERGUSON, J . M . , THOMPSON, W . E . , KERN, B.D. , ci ted in Nucl. Phys. 29 (1962) 373. 406 CSIKAI, J . , NAG Y, S . , Nucl. Phys. A91 (1967) 222. « 407 PAIC, G . , SLANS, J . , THOMAS, P. , Phys. Lett. 9 (1964) 147. 408 MITRA, B., GHOSE, A . M . , Nucl. Phys. 83 (1966) 157. 409 LILLIE, A .B . , Phys. Rev. 87 (1952) 716. 410 De JUREN, I . A . , STOOKSBERRY, R. W., Phys. Rev. 120 (1960) 901. 411 HILLE, P . , Österr. Akad. Wiss. 177 (1969) 467. 412 ALLAN, D. L., Nucl. Phys. 24 (1961) 274. 413 DEPRAZ, M . J . , LEGROS, G . , SALIN, M. R., J. Phys. Rad. 21 (1960) 377. 414 HASSLER, F . L . , PECK, R. A. , Phys. Rev. 125 (1962) 1011. 415 BROWN, G . , MORRISON, G . C . , MUIRHEAD, H . , MORTON, W. T . , Phil. Mag. 2 (1957) 785. 416 HALING, R., PECK, R. A. , EUBANK, H. P . , Phys. Rev. 106 (1957) 971. 417 STOREY, R., JACK, W. , WARD, A. , Proc. Phys. Soc. A75(1960) 526. 418 TIWARI, P . N . , KONDAIAH, E. , Proc. Conf. Nuclear Data,Microscopic Cross-Sections and other Data
Basic for Reactors, Paris (1966). 419 PEETERS, E. , Phys. Lett. 7 (1963) 142. 420 EUBANK, H. P . , PECK, R. A . , HASSLER, F. L., Nucí. Phys. 9 (1958) 273. 421 COLLI, L., I ORI, I . , MARCAZZAN, G., MERZARI, F., SONA, A . M . , SONA, P. G . , Nuovo C im. 17
(1960) 634. 422 ANTOLKOVIC, B., Nucl. Phys. 44 (1963) 123. 423 HEERTJE, I . , DELVENNE, L., NAGEL, W. , ATEN, A . H . W . , J r . , Physica 30 (1964) 2290. 424 ANDERSSON-LINDSTRÖM, G . , NEUERT, H . , Z. Naturforsch. 13a (1958) 826. 425 ABBOUD, A. , DECOWSKI, P . , GROCHULSKI, W., MARCINKOWSKI, A. , SIWEK, K. , TURKIEWICZ, I . ,
WILHELMI, Z . , Rep. IBJ 1147/I/PL (1969). 426 KOEHLER, D. R., ALFORD, W . L . , J. Nucl. Energy 18 (1964) 81. 427 CHITTENDEN, D . M . , private communica t ion (1961). 428 ALLAN, D. L., Nucl. Phys. 10 (1959) 348. 429 MARCH, P . V . , MORTON, W . T . , Phil. Mag. 3 (1958) 143. 430 STROHAL, P. , KULISlé, P . , KOLAR, Z . , CINDRO, N . , Phys. Lett. 10 (1964) 104. 431 McCLURE, G . , KENT, D . . J. Franklin Inst. 260 (1955) 238. 432 BORMANN, M . , FRETWURST, E . , WREGE, G . , private communica t ion (1963), quoted in Rep. BNL-325(1965). 433 KUMABE, I . , FINK, R. W., Nucl. Phys. 15 (1960) 316. 434 VONACH, H . , MUNRO, J . , Nucl. Phys. 68 (1965) 445. 435 VAL'TER, A. K . , GONCHAR, V . Y , , ZALYUBOVSKIJ, 1.1., LATYSHEV, G . D . , CHRUSIN, G. P . , Izv.
Akad. Nauk, SSSR, Ser. Fiz. 26 (1962) 1079. 436 ARMSTRONG, A. H. , ROSEN, L., Nucl. Phys. 19 (1960) 40. 437 BLOSSER, H . G . , HANDLEY, T . H . , Rep. WASH-191 (1956) 48.
138 BORMANN et al.
438 RAYBURN, L. A. , Bull. Am. Phys. Soc. 6 (1961) 462 F l . 439 ZHEREBTSOVA, K. I . , MAKAROVA, T. P . , NEM1LOV, Y. A . , FUNSHTEIN, B. L. , Sov. Phys. - JETP 35
(1959) 947. 440 DEMICHELIS, F . , GUIDETTI, M . , MIRALDI, E. , OLDANO, C . , Nuovo Cim. 58 XB (1968) 176. 441 COX, A . J . , FRANÇOIS, P . E . , J. Inorg. Nucl. Chem. 31 (1969) 2957. 442 BRZOSKO, J . , DECOWSKI, P . , WILHELMI, Z . , Nucl. Phys. 45 (1963) 579. 443 VALUS, D. G . , PERKIN, J . L . , J. Inorg. Nucl. Chem. 22 (1961) 1. 444 GUJRATHI, S . , MUKHERJEE, S . , Nucl. Phys. 85 (1966) 288. 445 RAMA PRASAD, P. , RAMA RAO, J . , KONDAIAH, E. , Nucl. Phys. A138 (1969) 85. 446 LEVKOVSKIJ, V . N . , Sov. Phys. - Dokl. 2 (1957) 182. 447 KLYUCHAREV, A. P. , USHAKOV, U . V . , CHURSIN, G. P . , Sov. Phys. - JETP 19 (1964) 1002. 448 EUBANK, H . , PECK. R. . ZATZICK, M . , Nucl. Phys. 10 (1959) 418. 449 SAKISAKA, M. , J. Phys. Soc. Jap. 14 (1959) 554. 450 VONACH, H . , MÜNZER, H . , HILLE, P. , Acta Phys. Austriaca 23 (1966) 183. 451 BACS&, J . , CSIKAI, J . , PAZSIT, A. , Acta Phys. Hung. 18 (1965) 295. 452 RAMA PRASAD, P . , RAMA RAO, J . , KONDAIAH, E., Nucl. Phys. A125(1969) 57. 453 US ARMY ROCKET AND GUIDE MISSILE AGENCY, Rep. ARGMA-TN-2, HIN 30 (1962). 454 PHILLIPS, J . A . , Rep. AERE NP/R 2033 (1965). 455 KUMABE, I . , TAKEKOSHI, E. , OGATA, H . , TSUNEOKA, Y., OKI, S . , J. Phys. Soc. Jap. 13 (1958) 129. 456 FEDDERSEN, K . - H . , Diplomarbeit , Hamburg (1972). 457 CSIKAI, J . , Magy. Fiz. Foly. 16 (1968) 123. 458 RURARZ, E. , HARATYM, Z . , KOZLOWSKI, T . , WOJKOWSKA, J . , Inst. Badan Jadrowych, Rep. IBJ
1091/IA/PL (1970). 459 HUDSON, O. M . , MORGAN, I . L . , Bull. Am. Phys. Soc. 6 (1961) 506. 460 MARLOW, K. W., FAAS, A. , Nucl . Phys. A132 (1969) 339. 461 JESSEN, P. , BORMANN, M . , DREYER, F . , NEUERT, H. , Nucl. Data 1A(1965) 103. 462 KAROLYI, J . , private communicat ion, ci ted by BODY, Z . T . , Thesis, Debrecen (1972). 463 LU, W., FINK, R .W. , Bull. Am. Phys. Soc. 15 (1970) 1372. 464 PETO, G . , BORNEMISZA-PAUSPERTL, P . , KAROLYI, J . , Acta Phys. Hung. 24 (1968) 93. 465 TEMPERLEY, J . K . , Nucl. Sei. Eng. 32 (1968) 195. 466 MITRA, B., Ind. J. Phys. 41 (1967) 752. 467 CHURSIN, G . P . , GONCHAR, V . Y u . , ZALYUBOVSKIJ, 1.1., KLYUCHAREV, A. P. , Zh. Ehksp. Teor.
Fiz. 44 (1963) 472. 468 DRUZHININ, A . A . , LBOV, A . A . , BILIBIN, L. P . , Yad. Fiz. 5 (1967) 18. 469 BÄK, M . A . , PETRZHAK, K. A. , CHENG, T- IA-Mei , Izv. Akad. Nauk SSSR, Ser. Fiz. 24 (1960) 818. 470 KAROLYI, J . , private communica t ion , c i ted by BODY, Z . T . , Thesis, Debrecen (1972). 471 MONNAND, E. , PISTON, J . , C.R. 263 (1966) 712. 472 DAROCZY, A . , RAICS, P . , CSIKAI, J . , Conf. Neutron Physics, Kiev, 1971. 473 CINDA 71, An Index to the Literature on Microscopic Neutron Data, IAEA, Vienna (1971).
FAST NEUTRON CROSS-SECTIONS 1 3 9
Part 2
GRAPHS OF EXCITATION FUNCTIONS
(Range: 1 - 37 MeV)
ABSTRACT. The compi la t ion is restricted to exci tat ion functions that can be measured by act ivat ion techniques. For pract ical purposes, mainly absolute cross-sections are needed; therefore, exci ta t ion functions given only in re la t ive units were excluded. As the exci tat ion functions given in the l i terature frequently differ for several reasons, less in shape but more in the absolute cross-section values, we desisted from deducing mean exci tat ion functions by averaging over the published data . Where there are significant differences in the absolute values, the exci tat ion functions should be renormalized by using the 14-MeV cross-section values given in Part 1.
INTRODUCTION
The l a s t s u r v e y on exc i ta t ion func t ions of neu t ron - induced r e a c t i o n s was publ i shed in 1965 [1], In the m e a n t i m e , a c o n s i d e r a b l e n u m b e r of p r e c i s e m e a s u r e m e n t s on t h e s e t o p i c s ha s been p e r f o r m e d , m a i n l y with neu t rons of the 12- to 20-MeV reg ion .
The fol lowing compi la t ion i s r e s t r i c t e d to exc i ta t ion func t ions tha t can be m e a s u r e d with ac t iva t ion t echn iques . In p a r t i c u l a r , the exc i ta t ion func t ions of r e a c t i o n t r a n s i t i o n s lead ing to s i n g l e - e n e r g y s t a t e s of the r e s i d u a l nuc leus — e . g . (n, o0), (n, »j) t r a n s i t i o n s — a r e excluded f r o m th i s compi la t ion .
A s to the in tent ion of th is compi la t ion , the u s e r i s r e f e r r e d to the i n t r o d u c t o r y c o m m e n t s of P a r t 1. The s a m e app l i e s to the n o m e n c l a t u r e of the r e a c t i o n types and a b b r e v i a t i o n symbo l s . In c o n t r a s t to the p r o c e d u r e u s e d in the t a b l e s to d e r i v e the se t of r e c o m m e n d e d c r o s s - s e c t i o n va lues f o r neu t ron e n e r g i e s of about 14 MeV, we did not want to deduce m e a n exc i ta t ion func t ions by a v e r a g i n g o v e r o r ca lcu la t ing f r o m the publ ished data .
The to ta l i ty of the exc i ta t ion func t ions p r e s e n t e d h e r e i s to be u n d e r -stood a s a c r i t i c a l compi la t ion that ha s been worked out in the fol lowing way. S ta r t ing f r o m s o m e o lde r compi l a t ions (Refs [1-3]) and u s i n g the CINDA R e p o r t [4], a l l ava i l ab le publ i shed exc i ta t ion func t ions w e r e ga the red t o g e t h e r . Of ten the exc i ta t ion func t ions a r e publ ished in g raph ic f o r m only; t h e r e f o r e , the g r a p h s given h e r e m a y contain s m a l l e r r o r s which a r i s e when e s t i m a t i n g the v a l u e s f r o m the o r ig ina l g r a p h s .
F r o m th i s s tock , f i r s t a l l those exc i ta t ion func t ions w e r e excluded that w e r e given in r e l a t i v e un i t s only. T h i s c o n c e r n s m a i n l y the p a p e r s of P r e s t w o o d and B a y h u r s t [5] and F e r g u s o n and Albe rgo t t i [6], Second, t h o s e exc i ta t ion func t ions w e r e omi t ted tha t showed s t r o n g and unexpla inab le dev ia t ions f r o m the m a j o r i t y of the o the r m e a s u r e m e n t s f o r the s a m e r e a c t i o n o r tha t w e r e in c o n t r a s t to r e l i a b l e t h e o r e t i c a l ca l cu la t ions o r p r e d i c t i o n s ( this app l i e s m a i n l y to s o m e (n, 2n) exc i ta t ion func t ions c o m p a r e d with s t a t i s t i c a l m o d e l ca lcu la t ions ) . T h i r d , exc i t a t ion func t ions f o r the s m a l l neu t ron e n e r g y i n t e r v a l 13. 5 - 15 MeV w e r e excluded b e c a u s e th i s i n f o r m a t i o n i s a l r e a d y conta ined in the t a b l e s of P a r t 1.
140 BORMANN et al.
The r e m a i n i n g exc i ta t ion func t ions a r e included in the fol lowing compi la t ion . If m o r e than one exc i ta t ion func t ion i s given f o r a r e ac t i on , t h e s e m o s t l y c o n c e n t r a t e a round a m e a n value . In r a r e c a s e s g r ea t d i f f e r e n c e s be tween two exci ta t ion func t ions can be found, usua l ly , however , not in the f o r m but in the abso lu te magni tude . T h e s e exc i ta t ion func t ions should be r e n o r m a l i z e d by u s ing the r e c o m m e n d e d 14-MeV c r o s s - s e c t i o n v a l u e s given in the t a b l e s .
A C K N O W L E D G E M E N T
The a u t h o r s would l ike to thank M i s s M. B r a u e r f o r h e r help in p r e -p a r i n g the g r a p h s and t ab l e s .
R E F E R E N C E S T O I N T R O D U C T I O N
[ 1 ] JESSEN, P . , BORMANN, M . , DREYER, F . , NEUERT, H. , Nucl . Data 1A (1965) 103. [2 ] LISKIEN, H. , PAULSEN, A . , EURATOM Rep. EUR 119e ( 1968). [3] BROOKHAVEN NATIONAL LABORATORY, Neutron Cross Sections, Rep. BNL-325, 2nd Edn (1966). [4 ] CINDA 71, An Index to the Literature on Microscopic Neutron Data, published by the IAEA on behalf
of the four CINDA centres, IAEA, Vienna (1971). [5 ] PRESTWOOD, R . J . , BAYHURST, B. P . , Phys. Rev. 121 (1961) 1438. [6 ] FERGUSON, J. M . , ALBERGOTTI, J. C . , Nucl . Phys. A98 (1967) 65.
FAST NEUTRON CROSS-SECTIONS 141
GRAPHS OF (n, p) CROSS-SECTIONS
Exc i t a t i on func t ions of (n, p) r e a c t i o n s f o r the t a r g e t nucle i :
3 He, 6 Li , 1 2C, 1 6 0, 1 9 F , 2 3Na, M Mg, 2 5Mg, 27A1, 28Si, 3 1 P, 32S, 34S, 37C1, 39K, 4 1K, 4 0Ca, 4 2 Ca, « C a , 4 5Sc, 4 6 Ti ,
4 7 T I ) 4 8 T I ) 4 9 T I ) 5 0 T I ) B 1 V ( 5 2 ^ 5 4 P E J 5 6 - P ^ 5 9 ^ 5 8 ^
6 0Ni, 65Cu, 6 4 Zn, 6 6Zn, 6 9Ga, 7 5 As, 7 4Se, 8 5Rb, 8 6Sr, 8 8Sr, 8 9 Y j 9 0 Z r < 1 0 9 A g > 1 0 6 c d > l l l c d ) 1 2 7 L 1 3 3 ^ 1 8 6 w _ 1 9 7 A u
(The abbreviations of references (e. g. CO 50) are constructed from the name of the first author and the year of publicat ion. A list of references is given on pages 270-272. )
142 BORMANN et a l .
(b) -1.0-
0.5-
n .
. I j : :t 3He(n,p)T (3H)
«H î • I • C0 50 J-T * X BA55
i A SA 61 •
í
Î
0 1 2 3 4 5 6 7 8 9 En (MeV)
e "
(mb)
¿0-
30-
20-
10-
n i
6Li(n.p)6He
Jk * B A 6 3
£ * • PR 69
' f • S
i
l JE
3 ^ 5 6 7 8 9 10 11 12 EJMeV)
FAST NEUTRON CROSS-SECTIONS 143
144 BORMANN et a l .
6 |(mb)J
5 C H
16 0 (n,p)16N
• JU 62 x CA 67
4 * *
11 12 13 H 15 16 17 18 19 20 En(MeV)
|(rrfb)|
Z.0-
30h
20 i
10-
19F(n,p)19Q
. BO 65 x PI 65
i t
i i i ^
ï i i * 3 i
FAST NEUTRON CROSS-SECTIONS 145
er |(mb)| 19F(n,p)190
X MA 55 • BA 65
• V
1 2 3 4 5 6 7 8 9 10 En (MeV)
|(mb)
40-
30-
20 i
10
23Na(n,p)23Ne
X WI 61 • P I 65
í I Î I
11 12 13 14 15 16 17 18 19 20 En (MeV)
146 BORMANN et a l .
M 23 Naln.ppNe . PI 63
x BA 65
50-
•T 1 I 1 2 3 4 9 10 En(MeV)
6 Kmb)'
200-
100-
24: Mg(n,p)249Na*
I M 60
•T1 1 'T" 11 12 13 14 15 16 17 18 19 20 ER (MeV)
FAST NEUTRON CROSS-SECTIONS 147
200H 2¿,Mg(n,p)2^Na
. BU 63 a L I 65 x LI 66
i * 4 * *
H J 1
100A
H f e f j .
1 2 3 U 5 P 6 7 9 10 En(MeV)
, 6 ,
m b ) 4
I2OO-I
í I Tï ÍÍ;
1 0 0 H
2¿Mg(n,p)24Na BU 63
P • — = H
i - F 1
148 BORMANN e t al.
FAST NEUTRON CROSS-SECTIONS 149
5 1
Inb)-^ M g l n p p N a
. BO 66 (BO 67)
5 0 -
*
n 11 12 13 U 15 16 17 18 19 20 ^ (MeV)
6
27AI(n,p)27Mg
(mb)
20 • HE 54
• • •
15-9
10-
•
• • m •
* • •
5 - • •
•
o
• • •
2 3 4 5 6 7 è § 1ÖEn (MeV?
150 BORMANN et a l .
FAST NEUTRON CROSS-SECTIONS 151
(mth
50 H
27AI(n,p)27Mg
x MA 60
f Ï
h
° i l 12 13 V, 15 16 17 18 19 20 En(MeV)
6 (mb)
400-1
300
200
100
I i 28Si(n,p)28AI
* H H i à
. CO 56 a KE 59 x JE 63
* i
11 12 13 14 15 16 17 18 19 20 E n (MeV)
152 BORMANN et a l .
6 llmbH
50CH
28Si(n,p)28AI
. MA 56 x BI 63
1 2 3 4 5 6 7 8 9 10 En (MeV)
6 limb)
500-
2 8Si(n.p)2 8AI
X ME 63 . BA 65
1 2 3 4 9 10 E n (MeV)
FAST NEUTRON CROSS-SECTIONS 153
154 BORMANN et a l .
pr 31P(n,p)31Si
(mbï
I . MO 58
100-
n • 2 3 4 5 5 7 8 9 10 E (MeV) n
31P(n,p)31Si
(mbr
I i i "
. GR 58
100-
Ï
Ï
0-• • •
0-2 3 U 5 6 7 8 9 10 11 12 13 14 15 En(MeV)
FAST NEUTRON CROSS-SECTIONS 155
32 Sin.ppP 6
(mb)
400-
300 J
Al 57
I i h i
í í j . í ^ í í t
100 J *
0 4 1 1 1 1 1 1 1 1 1 — 1 2 3 4 5 6 7 8 9 10 En(MeV)
limb)
400J
300
200
100
32S(n,p)32P
Al 57
11 12 13 14 15 16 17 18 19 20 E n (MeV)
156 BORMANN et al.
6'
( m b )
¿00-
300 Á
200
n o o
x * x
m*%
4
32S(n,p)32P
* KL ¿»8 • LÜ 50 x HÜ 55
7 8 9 10 E n (MeV)
6 -
| ( m b )
A 0 0
300
200-
100
T 1
I ll
I I
32S(n.pf2P
SA 63
I 3
10 11 12 13 K 15 16 17 18 19 E n (MeV)
FAST NEUTRON CROSS-SECTIONS 157
6 , | ( m b )
5 0 - ^
3AS(n,p)3AP
BO 66 u. BO 67
H - T • •
1. i-
0 i l 12 13 Î I 15 16 17 18 19 20 En (MeV)
|mb)J 37, 'CKn.pPs
MA 66
50 4
I ï i I I I i J I L
158 BORMANN et al .
6 | ( m b ) |
koo
300
200
100
39K(n,p)39Ar
• LA 63 x BA 64
H H
- I I ! ! J ' I »
1 2 3 4 5 6 7 8 9 10 E n (MeV)
ff-ï l i m b )
50 H
41K(n,p)41Ar
BO 69
{ i
•H *
11 12 13 14 15 16 17 18 19 20 ER (MeV)
FAST NEUTRON CROSS-SECTIONS 159
limb) I
40-
41 Ktn .p^Ar
. BA 6 5 a
301
2 0 1 » — • — i
1 0 -
1 2 3 4 5 6 7 8 9 10 E n (MeV)
160 BORMANN et a l .
6"
|(mb)'
BOO-
40Ca(n.p)40K
U R 6 1
1 2 3 4 5 6 7 8 9 10 E R (MeV)
6 (mb) 100-1
50 H
4 2 _ , Â2 Ca(n,p) K
• BA 6 5 a
i f -
1 2 3 4 5 6 7 8 9 10 E n (MeV)
FAST NEUTRON CROSS-SECTIONS 161
6 KmbH
UCo(n,p)UK
BA 65 a
1 2 3 4 5 6 7 8 9 10 E R (MeV)
6 limb)
50 H
/,5Sc(n,p)/>5Co
• BA 61
#
11 12 13 14 15 16 17 18 19 20 E n (MeV)
162 BORMANN et a l .
6 (mb)
400-
300
200i
100
A6Ti(njP)'6Sc
• L I 65a x BO 65a » PA 66
*
11 12 13 14 15 16 17 18 19 20 E n (MeV)
6 t r n b W
50 H
f
U1T\ (n, pf7Sc
GO 61
a TR 62
1 2 3 4 5 6 7 8 9 10 E (MeV) n
FAST NEUTRON CROSS-SECTIONS 163
6
(mb)
200-
*7Ti(n,p)*7Sc . PA 66
1 5 0 4
1 0 0 4
50-
*
- f — *
11 12 13 K 15 16 17 18 19 20 ^ (MeV)
6" limb)
5 0 4
i_ Ti (n.p) Sc
+ f : + + +
• GA 62 « BO 65a
11 12 13 14 15 16 17 18 19 20 E n (MeV)
164 BORMANN et a l .
6 KmbU
Ti(n.p) Sc
+ X PA 66
i 5 0
I •• - i y -r
11 12 13 14 15 16 17 18 19 20 En (MeV)
6 |(mb)1
50 H
49T¡ (n,p)A9Sc
PA 66
Í *
11 12 13 14 15 16 17 18 19 20 ER (MeV)
FAST NEUTRON CROSS-SECTIONS 165
6 |{mb)
2 0 -
50-r / »50 Ti(n,p) Sc
PA 66
15
101
11 12 13 U 15 16 17 18 19 20 En(MeV)
limb)]
50H
51V(n,p)51Ti
BO 63
11 12 13 14 15 16 17 18 19 20 E n (MeV)
166 BORMANN et a l .
5
(mb)
200-
150
100
50-
' f 1 ^
52Cr(n.p)52V
KE 59
i
11 12 13 14 15 16 17 18 19 20 En(MeV)
KmbW
5 0 W
54Fe(n,p)5Vln
X VA 61 . CA 64 i JO 65
1 2 3 4 5 6 7 9 10 E n (MeV)
FAST NEUTRON CROSS-SECTIONS 167
6 Imbl 54Fe(n,p]f*Mn
5 0 0
° l
*
m Z X
fe 5
• SA 65 x LA 65 ¿ CA 65
5 0 0
° l 2 3 5 5 7 8 9 10 E n (MeV)
6 mb)-
54Fe(n,p)5/;Mn
• SA 65 A CA 65
500-ï
í
5 ï ï
n . 11 12 13 U 15 16 17 18 19 20 E n (MeV)
168 BORMANN et a l .
FAST NEUTRON CROSS-SECTIONS 169
6" |(mb).
50 H
56Fe(n,ppMn i
4 *
SA 64 *
1
/ «
1 2 3 4 5 6 7 8 9 10 E n (MeV)
e
(mb)
200-
H50
1100-1
56Fe(n.p)56Mn
X BO 62 . SA 64
é * 5
50-1
11 12 13 14 15 16 17 18 19 20 E n (MeV)
170 BORMANN et a l .
FAST NEUTRON CROSS-SECTIONS 171
llmbH 5 8 , Ni(n,p)589Co*
5 0 0 H
• CH 65 x BO 66
I J1 'H t i n
6 " 1
I M 5 8 k , : Ni(n,p)589Co
h H
i x OK 67 . DE 68
5 0 C H 2 1
' to
x « i r
172 BORMANN et a l .
6
(mb)
400-
POO
2004
100
58 N i (n. DP9CCT
• KO 63 x ME63 4 DE 68
4 « *
1 2 3 4 5 6 7 8 9 10 E n (MeV)
6 (mb)
200-
150-
100 4
60, ' N i ( a p ) 6 ° 9 C o *
PA 67 ¿ L
t - - l
FAST NEUTRON CROSS-SECTIONS 173
6 (mb)
200-
6 (mb)
200-
60N ¡ ( a p l a c o *
150-
100-
50-
n .
. PA 67
11 12 Ï3 H 15 16 17 1*8 19 2 0 En(MeV)
6 ' [mb)
20-
15 •
10 •
65Cu(n,p)65Ni
6 ' [mb)
20-
15 •
10 •
1 SA 66
a. * *
if*
5 •
SA 66
a. * *
0 •
* <
2 3 4 5 6 7 8 9 10 E n (MeV)
174 BORMANN et a l .
FAST NEUTRON CROSS-SECTIONS 175
6 (mb
•
• • 64Zn(n,pPCu
200J
150-
lOO-
• H *
•
. GA 62 " WE 62 A BO 69
BO-
n . 11 12 13 u 15 16 17 15 19 20 E n (MeV)
e ' (mb)
66Zn(n,p)66Cu
• BO 65
50- h
n . 11 12 13 14 15 16 17 18 19 20 E n (MeV)
176 BORMANN et al.
6
|(mb)|
40-
69Ga(n,p)69mZn
• BO 62
30
20H
1
1 0 -
—I 12 13 14 15 "¡6 17 18 19 20 E n (MeV) 11
, 6 |(mb)
40-
^ A s l n . p ^ G e *
x BA 61 • BO 67
30
2 0
10
*
FAST NEUTRON CROSS-SECTIONS 177
6
limb) 40-
75As(n,p)75gGe*
OK 67
3 0 4
f
10
limb)
40-
75As(n,p)75mGe
x AB 67
• OK 67
30
20 J
10
11 12 13 14 15 16 17 18 19 20 E n (MeV)
178 BORMANN et a l .
6"
|(mbï
hooH
74Se(n,p)74As
• BO 67
11 12 13 U 15 16 17 18 19 20 E n (MeV)
| {mb ! |
6
4
85Rb(n,p)87mKr
BO 67
11 12 13 H 15 16 17 13 19 20 E R (MeV)
FAST NEUTRON CROSS-SECTIONS 179
C
!(mb)
4 0 -I
30
20-1
10
8 6Sr(n,p )8 6 gRb*
• BA 61
I T t » 11 12 13 14 15 16 17 18 19 20 ^ {MeV)
, 0 ' (mb)
40
30
2 0 4
10
88Sr(n,p)88Rb
. CO 56
+ i
» i 11 12 13 14 15 16 17 18 19 20 E n (MeV)
180 BORMANN et a l .
6 limb)!
4
89Y(n,p)89Sr • BA 61
1 2 3 l 5 6 7 8 9 10 E n (MeV)
„ & (mb)
2 0
15
10
5 4
t # 89Yin,pffSr
• BA 61
11 12 13 14 15 16 17 18 19 20 ER (MeV)
FAST NEUTRON CROSS-SECTIONS 181
6 (mb)-
9 0 Z r ( n , p ) 9 ° 9 Y *
• BA 51
5 0 -
i
H - i
* * *
0 -0 -5 5 7 8 9 10 11 12 13 % 15 16 17 18 19 En(MeV)
6" , 0 9 A q ( n . p ) 1 0 ^
(mb) . BA 61
20-. BA 61
15- JBh
# 10-
i
5-
n . HM ^
5 6 7 8 9 10 11 12 13 U 15 16 17 18 19 En(MeV)
182 BORMANN et al.
( m b )
1 0 6 ~ , , » 1 0 6 A Cd(n,p) Ag
2 0 0 -• B 0 6 8
1 0 0 -
î * +
1- M H H 1-1 M HM
""l"1 M
n
11 12 1 3 1 4 1 5 1 6 17 18 1 9 2 0 E n ( M e V )
6 ( m b )
8 0 -
111 Cd (n, p)111 Ag
• B A 6 1 4 " 1
6 0 -+
« 0
2 0 -
3 n
5 6 7 8 9 1 0 11 12 13 1 4 1 5 1 6 17 1 8 19 2 0 E n ( M e V )
FAST NEUTRON CROSS-SECTIONS 1 8 3
6 (mb)
4 0 '
30
20
1 0
J + 127I(nip)127Te
• LA 63
11 12 13 14 15 16 17 18 19 20 En(MeV)
6 Ó-nb) 40 i
30
20
10
+ • LA 63
11 12 13 14 15 16 17 18 19 20 E n (MeV)
1 8 4 BORMANN et a l .
6 |(mb)t
2 0
t o
186W(n,p)186Ta
• Ba 59
H H ' I ' «
11 12 13 14 15 16 17 18 19 20 21 En(MeV)
llnfbjî
6
2 H
1 9 7 A U ( n , p ) 1 9 7 R
• Ba 61
+ +
11 12 13 14 15 16 17 18 19 20 En (MeV)
FAST NEUTRON CROSS-SECTIONS 561
G R A P H S O F ( n , a ) C R O S S - S E C T I O N S
E x c i t a t i o n f u n c t i o n s of (n, a) r e a c t i o n s f o r t he t a r g e t n u c l e i :
9 B e , " B , 1 &F, 2 3 Na , 2 6 Mg, 27A1, 3 1 P , 34S, 3 5C1, 37C1, 4 0 A r , 3 9 K , 4 1 K, 4 0 Ca , 4 4 C a , 4 5 Sc, 5 1V, 5 5 Mn, 5 4 F e , 5 9 Co, 6 3 Cu, " B r ,
8 5 R b , 8 9Y, 9 2 Z r , ^ Z r , 9 3 Nb, 1 1 2 Cd, 1 1 8Sn, 1 2 7 I , 1 3 3 C s , 1 4 0Ce, 1 9 7Au
(The abbreviations of references ( e . g . ST 57) are constructed from the name of the first author and the year of publicat ion. A list of references is given on pages 270-272. )
186 BORMANN et a l .
6 IlmbH
5 0 H
X
À >
f " m
9Be(n,oc)6He
• ST 57 x BA 61a
XX ,
i i i i 1 i i 0 1 2 3 4 5 6 7 8 9 E n (MeV)
6
|(mb)
4 0 4
3 0 4
20
1 0 1
11B(n.o¿)a Li
. AR 56
x SC 70
il
11 12 13 14 15 16 17 18 19 20 En (MeV)
FAST NEUTRON CROSS-SECTIONS 187
6 (mb)
19F(n,OC)16N
400- . MA 55 x BO 55
300-
200-
100-
0 •
X
7 * x •
* • •
X»
y
300-
200-
100-
0 • 2 3 A 5 6 7 8 9 10 En (MeV)
6 (mb) 200-
• • • 9 • • • •
19F(n.cc)16N
• SM 60
150-•
/ •
100- ». y • í •
50-
/ 0
2 3 4 5 6 7 8 9 10 E n (MeV)
188 BORMANN et a l .
& (mb)
200-
150
100 4
5 0 H
19i F(n,oc)16N
Í "•! BA 65
» \
> W
1 2 3 4 5 6 7 8 9 10 E n (MeV)
6 |(mb)
40-
3 0 4
2 0 4
104
19F(n,*)16N
• P I 65
H I
11 12 13 14 15 16 17 18 19 20 E n (MeV)
FAST NEUTRON CROSS-SECTIONS 189
6"
llmbU
50 H
23Na(n,oc)20F
. W I 6 1
x B A 6 4 • • •
• «
1 2 3 4 5 6 7 8 9 10 En(MeV)
llmblJ
h o w
23 Na(n,o¿)20F
. P I 65
x WÖ 66
"1 1- I •• » » • -I 1 I 11 12 13 14 15 16 17 18 19 20 E,^ (MeV)
190 BORMANN et al .
6 |(mb)
5 ( H
i
26Mg(n,oc)23Ne
BO 66 (BO 67)
11 12 13 14 15 16 17 18 19 20 En (MeV)
6" I l m b H
27Al(nJoc)24gNQ,t
. SC 61 X BA 61
1 0 0 - ^ i
FAST NEUTRON CROSS-SECTIONS 191
6 llmbH
27AKn,(x)249NQt
• BU 63 x ME 67
10CH •y. x •—'1—•
* .Tr -i f j j i '
6 l(rnb).
100- Ml
27AI(nJoc)2^Ngt
x GR 58 A TE 60 • ME 67
6 ~ 7 8 9 10 11 12 13 14 15 16 17 18 19 20 E n (MeV)
192 BORMANN et a l .
6 ' (mb)
50-
• f
25 * *
* *
H
27Al (r^oO^Na*
• LI 66
V-
0 2 3 k 5 6 7 8 9 10 Ení'MeV)
fí 27AI(n.oc)2A9Na*
(mb) X KE 59 • MA 60
100-
i—i
f i
i—i
r TL •PI H f M pÜ i
1 i ,
0 0 11 12 13 14 15 16 17 18 19 20 E n (MeV)
FAST NEUTRON CROSS-SECTIONS 193
llmbH
100H
4 .
i
27AI(n.ocPgNQ*
4 I M 61 * BO 61 . GA 62
f i -
l l 12 13 U 15 16 17 18 19 20 E n (MeV)
6 IlmbH
10(H
fe m
X JE 63 • PA 65b
T J - l
11 12 13 14 15 16 17 18 19 20 E,^ (MeV)
194 BORMANN e t a l .
6 [m b)|
2 0
1.5
1 0
0.5H
i
31P(n.pc)2eAI
. AG 62 x CU 63
1 2 3 4 5 6 7 8 9 10 E n (MeV)
, 6 I m b )
10(H
- Ï -
31P(n,o¿)28 Al
. GA 62
x BO 63
' ï '
I I
11 12 13 14 15 16 17 18 19 20 E n (MeV)
FAST NEUTRON CROSS-SECTIONS 195
6 ' (mb)
3 4 S ( n , oc ) 3 1 S i
• AL 57
i
100-
M i l I
i
l ï
0-L
0-L 5 6 7 a 9 10 11 12 13 E n (MeV)
196 BORMANN e t a l .
6 IlmbH
50 H
1 2 3 4 5 6 7
35Cl(n,oc)32P
AD 53
9 10 E n (MeV)
6 |(mb)'
100H *
37CI(n,ec)3*P
AB 67
11 12 13 14 15 16 17 18 19 20 E n (MeV)
FAST NEUTRON CROSS-SECTIONS 197
6" llmblJ
^°Ar(n.oc)37S
. SU 66
1 0 4 ' i l 11, i
i i
I 1"
11 12 13 U 15 16 17 18 19 20 Ep) (MeV )
39K(n, o¿)36Cl
er • limb)
100H
. BA 64
+ j I-
n
11 12 13 14 15 16 17 18 19 20 E n (MeV)
198 BORMANN et al.
|(m6b)1
39K(n,oc)36CI
• BO 62a
50H
11 12 13 14 15 16 17 18 19 20 En (MeV)
6 (m b)|
20 4
15
1 0 1
41K(n,*)38CI
• BA 65a
i — • — i
I I I 1 T
2 3 4 5 6 7 8 9 10 E n (MeV)
FAST NEUTRON CROSS-SECTIONS 199
6 ' (mb)
40Ca(n,tx.)37A
200 •
• • . BA 65a
150- •
100-
50-
n. 2 3 4 5 6 7 8 9 10 En(MeV)
(mb)
uCa(n,<x)A1A
40- . BA 65a
30-
20-
10
0 0 5 7 8 9 10 11 12 13 14 15 En(MeV)
200 BORMANN et al.
fí 45Sc(n.oc)42K
[mb)
. BA 61
50-
-
ï Hh
0 •
t-M 0 •
7 5 9 10 11 12 13 14 15 16 17 18 19 20 E n (MeV)
6 j (mbj
51 V(n ,ot ) 4 8 Se 100-
. B0 61 x CI 62
50-
i i
s ¡ > 1
ï
i
i
; i 1 \\
n n 12 13 14 15 16 17 18 19 20 En ' (MeV)
FAST NEUTRON CROSS-SECTIONS 201
6T
llmbll
50
55Mn(n,<*)52V
. GA 62 x BO 65
h - 1
1 I I
I 11 12 13 14 15 16 17 18 19 20 E n (MeV)
er |(mb)
1001
5Ve(n.oc)51Cr
. SA 65
I ? *
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 E (MeV) n
202 BORMANN et a l .
6 " (mb)
40-
5 9 C o ( n ,< * . ) 5 6 M n
• SA 54 X L I 66
30-
20-
10 •
n
* $ >H
« * *
« i
i 1 6 7 8 9 10 11 12 13 E n ( M e V )
6 (mb
40-
5 9 C o ( n , o c ) 5 6 M n
X B0 61
• SA 64
30
20-
10-
*
** I 1
^ I
0 0 1 12 13 14 15 16 17 18 19 20 E n (MeV)
FAST NEUTRON CROSS-SECTIONS 203
er
limb)
40
30
20 H
10
59 Co ( n,c<. )56Mn
x GA 62
• JE 63
Í Î + 1 -
ï ï
• f r l 1 }
* - i 1 1 r
11 12 13 14 15 16 17 18 19 20 21En(MeV)
, 6 |(mb)
40
30
2 0
10
-T i m i i
59Co(n, oc)56Mn
L I 65
11 12 13 14 15 16 17 18 19 20 E,^ (MeV)
204 BORMANN et a l .
|(mb)J
P A 6 7
1 5 0 4
63Cu(n. ocPCo
í *
° 1 2 3 l 5 ™ 6 7 8 " 9 1 0 E J M e V )
6 llmbl
5 0 A
63Cu(n,oc)60Co
• P A 6 7
i I I I
' ^ ' i —ï— i
11 12 13 14 15 16 17 18 19 20 E n (MeV)
FAST NEUTRON CROSS-SECTIONS 205
6 (mb)
2 0 •
15
10 i
5
75As(n,o¿)72Ga
• BA 51
x BO 67
i *
6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 En(MeV)
206 BORMANN et a l .
6" llrnbH
1 0
8 5 R b ( n , c 0 8 2 B r
• BO 67
11 12 13 14 15 16 17 18 19 20 E n (MeV)
6"
IlmbU
89 Y ( n, oc )869Rb*
x TE 60
. BA 61
+ n f
11 12 13 14 15 - i 1 i 16 17 18 19 20 E n (MeV)
FAST NEUTRON CROSS-SECTIONS 207
6
llmbH
10 A
92Zr(n.oc)89Sr
BA 61
x i i f r + + T
11 12 13 14 15 16 17 18 19 20 E n (MeV)
6 |(mb)
94Zr(n,a)91Sr
^ + + • BA 61
+
11 12 13 14 15 16 17 18 19 20 E,^ (MeV)
208 BORMANN e t a l .
6 ' (mb)
93Nb(n,a)90gY* X TE 60 . BA 61
10-
° l
T—»H
X
X
* X X
° l 2 3 Á 5 6 7 8 9 10 En(MeV)
93Nb(n,oi.)9°9Y*
(mW X TE 60
. BA 61
10-
* X
X
X
X
X ^ S í f r
0 0 1 12 13 H 15 16 17 18 19 20 E n (MeV)
FAST NEUTRON CROSS-SECTIONS 209
5 . limb) 112Cd(n,o¿)109Pd
BA 61
* * 5 4
I 1 1 » f I I I 6 7 S 9 10 11 12 13 14 15 16 17 18 19 20 E^ MeV)
6 | ( m b ) |
118Sn(n, oc)115Cd
BA 61
2
1H * «
• " N H
» i . I 'Il i
2 J L m r
17 18 19 20 E,^ (MeV) f i l l
11 12 13 14 15 16
210 BORMANN et a l .
6 I M 1 3 3Cs(n .oc )1 3 0 I /1 2 7 I (n .o ,Psb
BO 62a
0 H 1 T 11 12 13 U 15 16 17 18 19 20 E 4MeV)
6
|(mb)
2 0 -
15
10
U0Ce(n,*)137mBo
BO 66
11 12 13 14 15 16 17 18 19 20 E n (MeV)
FAST NEUTRON CROSS-SECTIONS 211
e (mb)
2.0. 197Au(n.c*Plr T
1.5- . BA 61
* T
1.0-
OS-
0 -Í
e 7 8 9 10 11 12 13 % 15 16 17 18 19 20 E (MeV) n
212 BORMANN et al .
G R A P H S O F (n, 2n) C R O S S - S E C T I O N S
E x c i t a t i o n f u n c t i o n s of (n, 2n) r e a c t i o n s f o r t he t a r g e t n u c l e i :
1 2 C, 1 4 N, 1 6 0 , 1 9 F , 2 3 N a , 2 7 A l , 3 1 P , 3 2S, 35C1, 3 9 K , 4 5Sc, 4 6 T i , 5 0 C r , 5 2 C r , 5 5 Mn, 5 4 F e , 5 9 Co, 5 8 Ni, 6 3Cu, 6 5Cu, M Z n , 6 6 Zn, 6 9 Ga, 7 0 Ge, 7 6 G e , 7 5 A s , 7 4Se, 7 8Se, 8 0Se, 7 9 B r , 8 1 B r , 8 5 Rb, 8 7 R b , 8 4 S r ,
8 6 S r , 8 8 S r , 8 9 Y, 9 0 Z r , 9 3 Nb, 9 2Mo, MMO, 9 6 R U , 1 0 4 R U , 1 0 3 Rh,
1 0 2 p d j 1 1 0 p d ) 1 0 7 A g j 1 0 9 A g i 1 0 6 c d j 1 1 6 C d ) 1 1 3 I n > 1 1 5 I n j 1 1 2 g n j
1 2 1Sb, 1 2 3Sb, 1 2 8 T e , 1 3 0 T e , 1271, 1 3 3 C s , 1 4 0 Ce, 14Sfce, 1 4 1 P r , 1 4 2Nd, 1 4 4 S M , 1 6 5 H O , 1 6 8 E r , 1 6 9 T m , l s l T a , 1 8 4W, 1 9 2 Os, 1 9 1 I r ,
1 9 8 p t 1 9 7 A u 2 0 3 t 1 j 2 0 4 H g 2 0 4 p ) ^ 2 0 8 p ] ^ 2 3 2 ^ 2 3 8 u
(The abbreviations of references (e. g. BR 52) are constructed from the name of the first author and the year of publication. A list of references is given on pages 270-272. )
FAST NEUTRON CROSS-SECTIONS 213
6 |(mb)
20 4
15
10
5
12 C(n,2n)11C
x BR 52
• BR 61
Í Í
22 23 24 25 26 27 28 29 30 31 32 3 3 34 35 36En(MeV)
6 |(mb) I UN(n,2n)13N
10H
Ï Ï "
H
CR 60
-1 1 r -11 12 13 14 15 16 17 18 19 20 E, (MeV)
214 BORMANN et al.
, 6 , |(mb)|
2 0 -
15
10 i
uN(n,2n)13 N
A FE 60 x BR 61 • BO 65
• I J J
, 5 ftmb)
20-I
15
10
uN(n,2n)13 N
X BR 61
ï
21 22 23 2L, 25 26 27 28 29 30 31 32 33 34 35 E„ (MeV)
FAST NEUTRON CROSS-SECTIONS 215
5 limb)
15
10
5
20 ] 160(n,2n)150
BR 61
* T ' I * " »
17 18 19 20 21 22 23 24 25 26 E n ( M e V )
6 limb)
20 -I
15
10
160(n,2n)15Q
BR 61
28 29 30 31 32 33 34 35 36 37 E n ( M e V )
216 BORMANN et al .
6 llmbH
10CH
19 F(n.2n)18gF*
. WI 61a X RA 62
+ + *
H H 12 13 14 15 16 17 18 19 20 ER (MeV)
6" I lmbH
50-
0 4
19F(n.2n)18gF*
. P I 6 5 x BO 65
H H
• I "' T I - I — '—— I 11 12 13 14 15 16 17 18 19 20 En(MeV)
FAST NEUTRON CROSS-SECTIONS 217
(m ft
100H
19F(n,2n)1Ö9F*
x CR 60 . BR 61
i i I »
0 1 2 13 ÏZ 15 16 17 18 19 20 21 E (MeV)
5
|(mbH
100H
19F(n,2n)18gF*
BR 61
11 12 13 14 15 16 17 18 19 20 E n (MeV)
218 BORMANN et a l .
6 |(mb)i
50- 19, F(n.2n)18gF*
. ME 67 x SH 68
11 12 13 H 15 16 17 18 19 20 E n (MeV)
llnfbll
10CH
!
11
23No(a2npNa
• L I 65a * PI 65 a ME 67
l 1
12 13 14 15 16 17 18 19 20 E n (MeV)
FAST NEUTRON CROSS-SECTIONS 219
, 5 (mb)
POCH
27Al(n,2n)26mAI
. MA 60
Hi
11 12 13 14 15 16 17 18 19 20 E (MeV) n
er ImbH
50 H
31P(n,2n)30P
X FE 60 . BO 63
M M
- Í -
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 E (MeV) n
220 BORMANN et a l .
6 limb)"
0.5-
32S(n,2n)31S
BO 66
+
i - í - i
1 1 I I 11 12 13 14 15 16 17 18 19 20 E (MeV) n
6 |(mb)
40-
35CI(n,2n)3/,m,9Cl
• MA 60G (m) x AB 67 (g)
3 0 4
2 0 - + 1 0 '
11 12 13 14 15 16 17 18 19 20 En (MeV)
FAST NEUTRON CROSS-SECTIONS 221
, 6 |(mb)
40-1
30
2 0 4
10 H
• - Í - I
I ^ 1
39K(n,2n)38gK
• BO 65 x BA 65a
+ + ^
13 14 15 16 17 18 19 20 21 22 En(MeV)
6"
limb) 20-I
15
10 ]
39. JK(g2n)38nnK
• BA 65 a
13 14 15 16 17 18 19 20 21 22 (MeV)
222 BORMANN et al .
6 (mb)
400-1
300
200
100
6 (mb)
400
300
200H
100
i5Sc(n,2n)Ug Sc
* PR 61 (g • AR 64(g !
¿h - i -
A "
i I ,
11 12 13 14 15 16 17 18 19 20 En(MeV)
Sc(n,2n) Sc
A PE 61 (m) x PR 61 (m) • AR 64 (m)
Î - HH?
» « i 4
H H 4
ú u ^ VT " • • A
11 12 13 14 15 16 17 18 19 20 E n (MeV)
FAST NEUTRON CROSS-SECTIONS 223
6 (mb) 400- . PR 61
x BO 65a A PA 66
300^
2004
100
11
t - J - T ^
1 1 I I I » 12 13 14 15 16 17 18 19 20 E n ( M e V )
224 BORMANN et a l .
IlmbU
5(H
50Cr(n,2n)*9Cr
. J E 65 ^
Hb
+ j í
• - Í H
HEH
I 2 13 H 15 16~ 17 18 19 20 E n (MeV) 11
6 (mb) ¿00-
13004
200i
100
+ £
í 52Crln.2n)51Cr
• B 0 6 8
- i -
11 12 13 14 15 16 17 18 19 20 En (MeV)
FAST NEUTRON CROSS-SECTIONS 225
, S , (mbH
1000
55Mn(n,2n)5AMn
• PA 65b x ME 67 a BO 69
i " i 11 12 13 U 15 16 17 18 19 20 E ^ M e V )
100i
^ 5^Fe(n.2nP9Fe
a SA 65 x AN 68
* H Ö 7 2
11 12 13 14 15 16 17 18 19 20 E, (MeV)
226 BORMANN et a l .
|(mbH
50Ch 59, Co(n,2n)589Co*
HEi A BO 61 X BO 66a • DE 68
- i 1 1 1 1 — — — i -11 12 13 14 15 16 17 18 19 20 E n ( M e V )
6 |(mbH
50CH
^ColiUnPgÇo«
A WE 62 x CH 65a • PA 65b
11 12 13 14 15 16 17 18 19 20 En (MeV)
FAST NEUTRON CROSS-SECTIONS 2 2 7
228 BORMANN e t a l .
6 I (mbH
50 H
56Ni(n,2n)57Ni
• CS 65 (CS 66) X BO 66
Ii
11 12 13 U 15 16 17 18 19 20 E n (MeV)
CT | ( m b )
5 0 4
^ N i l n ^ n F N i
. PA 65 x CS 65
£
°11 12 Ï5 U 15 16 17 18 19 20 E„ (MeV)
FAST NEUTRON CROSS-SECTIONS 229
230 BORMANN et a l .
6 limb)'
5004 63Cu(n,2n)62Cu
. CS 65 (CS 66) X L I 65
11 12 13 H 15 16 17 18 19 20 En(MeV)
(mb)
500-
i 63Cu(n,2n)62Cu
• CU 68 x BO 69
°11 12 Ï5 U 15 16 17 18 19 20 E „ (MeV)
FAST NEUTRON CROSS-SECTIONS 231
6
[(mb)
5004
H • J H
6 5 C u ( n , 2 n ) 6 4 C u
X RA 62
. BO 63
11 12 13 K 15 16 17 18 19 20 En(MeV)
6"
|(mb)1
3 0 0 4
Í
Û
# *
« t
M**
6 5 C u ( n , 2 n P C u
X NA 65
. SA 66
I " " 1 1" I I I
11 12 13 14 15 16 17 18 19 20 E n (MeV)
232 BORMANN et al .
6 | ( m b f l
hOOCH
65, Cu(n,2nf*Cu
. PA 65 x CS 6 5 I C S 6 6 )
11 12 13 14 15 16 17 18 19 20 En(MeV)
6 | (mb)1
OOCH
*
65Cu(n,2n)64Cu
• PR 61
X BO 69
°11 12 Ï5 U 15 16 17 18 19 20 E„ (MeV) » ' " I I
: n
FAST NEUTRON CROSS-SECTIONS 233
6
fcnbï
50CH
^Znln^nPZn
. CO 56 x PA 65 a BO 69
* Í
s e e a l s o KO 60
A f t " 1
11 12 13 U 15 16 17 18 19 20 E n (MeV)
6 (mb)
4 0 0 4
30CH
2004
(100 H
6AZn(n,2n)63Zn
. GA 61 A WE 62
IA 63
t—
I Ï I T
j f P ï
11 12 13 14 15 16 17 18 19 20 E,^ (MeV)
234 BORMANN et al.
6 Hmb)
hoooH
66Zn(n,2n)65Zn
. BO 69
* * *
11 12 13 U 15 16 17 18 19 20 E n (MeV)
mb)
hOOOH
69Ga(n,2nPGa
BO 65
4
11 12 13 14 15 16 17 18 19 20 E n (MeV)
FAST NEUTRON CROSS-SECTIONS 235
6 |(mb)
P O O H
•çS-1
, 4 t 'HT
70Ge(n,2nfe
ï * • PR 61
x WA 72
• f I I
11 12 13 14 15 16 17 18 19 20 E p (MeV)
, e (mb)
hOŒH
76Ge(n,2n)75gGe*
M ' I I I • OK 67 x ST 70
H i
11 12 13 14 15 16 17 18 19 20 E J M e v f
236 BORMANN et al .
76Ge(n,2n)75mGe M
. AB 67 x OK 67
hoow
11 12 13 14 15 16 17 18 19 20 EpIMeV)
& KmbH . PR 61 x BO 68
, h f i 1
I r a n i t
75As(n,2n)74gAs
FAST NEUTRON CROSS-SECTIONS 237
6
(mb)i 400
300
COO
n o o - i
74Se(n,2n )73m,gSe
. HO 72 (m) x HÖ72 (g)
" M
n üe î [
11 12 ~13 14 15 16 17 18 19~ 20 En (MeV)
6 IlmbH
50CH
For comparison of HO 72 and BO66a see ref. 460 ot 14 MeV tab les
74Se(n,2n)73m'9,totSe
. BO 6 6 a (g) * BO 6 6 a (m) a AB 69 (m+g)
t-AH 1-6-H
l - i - 1
WH fr
* + + 4 •i
11 12 13 14 15 16 17 18 19 20 E,^ (MeV)
238 BORMANN et al.
11 1 2 1 3 U 15 16 17 1 8 1 9 2 0 E p í M e V )
(mbH
ooo-
eoSe(n.2n)79mSe
. A B 6 7
11 12 13 14 15 16 17 18 19 20 E n (MeV)
FAST NEUTRON CROSS-SECTIONS 239
6 M
pOOH
1Î m
J H H
79Br(n,2n)78Br
• KO 62 * AB 67 A OK 67
1 ~ I I " — 1 » " " f 11 12 13 H 15 16 17 18 19 20 ^ (MeV)
er limb).
500-
- t - - T H h
6lBr(n,2n)a0mBr
BO 62
+
1 » — I I I
11 12 13 14 15 16 17 18 19 20 E,^ (MeV)
2 4 0 BORMANN et al.
Q |(mb)1
n o Œ H T j ;
^ 1
, j t 85Rb(n,2n)8A9Rb"
A P R 6 1
x B O 6 8
• W A 7 2
(mbH
hOOCH
85Rb(n,2n)84mRb
• B O 6 8
x W A 7 2
. i j e . ' i 1
* * * *
11 12 13 14 15 16 17 18 19 2 0 E n (MeV)
FAST NEUTRON CROSS-SECTIONS 241
6 |(mb)
hooo-l
67Rb(n,2n)86gRb*
HH . PR 61 x R I 66
1 R~ 10' 11 12 13 H 15 16 17 18 19 ^ (MeV)
6 Ifr-nbH
hOOCH
8/,Sr(n,2n)83Sr . PR 61 X BO 66
+ + 4 4
11 12 13 14 15 16 17 18 19 20 'E^MeV)
242 BORMANN et a l .
|(mb)1
5 Œ H
86Sr(n,2n)85Sr
i T T I 1 - • - >""
h L 1 x FE 72 (m+g)
• FE 72 (m)
$ »
* * *
*
11 12 13 14 15 15 17 18 19 20 E n (MeV)
6 , (mb)!
400
300
200
100 4
0
88Sr(n,2n)87mSr
. BO 65
" FE 72
4 Í
4 1
11 12 13 14 15 16 17 18 19 20 E n ( M e V )
FAST NEUTRON CROSS-SECTIONS 243
6"
Ifrnbrt
5 0 0 4
IJ Í 1
i 4.
i
- , . - , _ , _ - j — i - i -
^ Y i n ^ n p Y
• TE 60 x R I 66 o AB 69a a FE 72
- i 1 1 r-11 12 13 14 15 16 17 18 19 20 E^ (MeV)
6 I(mbj1
toan
90Zr(n,2n)89gZf
. PR 61 a R I 6 6
x AB 69
» H u •""""I-*-» - i -
11 12 13 14 15 16 17 18 19 20 E,^ (MeV)
244 BORMANN et al .
, 0 ^ (mb)
500-
93Nb(n,2nFmNb
. PA70a x B I 7 0
1 T T T h L
10 11 12 13 14 15 15 17 18 19 E n (MeV)
6 llmbH
5 0 0 4
S
H H
92 Mo(n,2n)91Mo
• BR 52 (6^+0.576m) x AB 69
13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 En(MeV)
FAST NEUTRON CROSS-SECTIONS 245
A 92Mo(n,2n)91Mo
Í i i
X CS 65 (CS 66) • HÖ 72
500-
11 12 13 U 15 16 17 18 19 20 E n (MeV)
5 l l m b í
104
9*Mo(n,2n)93mMo
GA 70
11 12 13 Ï ! 15 ^ 17 18 19 20 E p (MeV)
246 BORMANN et a l .
6 | ( m b )
500H
Í
• i
4. t
96Ru(n,2npRu
Í . B I 70
0 i l 12 13 U 15 16 17 18 19 20 En (MeV)
6" | (mb)
hoocH
10ARu(n,2n)103Ru
BI 70
° 11 12 13 U 15 16 17 18 19 20 E n (MeV)
FAST NEUTRON CROSS-SECTIONS 247
248 BORMANN e t al.
6 llmbH
hOOCH
i í
102Pd(n.2n)101Pd
. B I 70
í
11 12 13 U 15 16 17 18 19 20 Ep (MeV)
ímbH
hoocH
j i i i i n i i i
í * * í í í i í
110Rd(n,2n)109m-gpd
. B I 70 (m) * BI 70 (g)
*
I ' I f— ° 11 12 13 U 15 16 17 18 19 20 En (MeV)
FAST NEUTRON CROSS-SECTIONS 249
er llmbH
hoocH
107/ 7Aq(n,2n)06m-gAg
A T E 60 (m) * RA 63 (g) . CU 68 (g)
M iP
11 12 13 U 15 16 17 18 19 20 E p (MeV)
6 |(rel. units)
20
15
10
5
107Aq(n,2n)106mAq
. PR 61
+ + +
t I I 11 12 13 K 15 16 17 18 19 20 E n (MeV)
250 BORMANN et a l .
|(mb)J 109, jAq(n,2n)1089Aq
CU 68
500H
11 12 13 14 15 16 17 18 19 20 E n (MeV)
6 |(mb)1
mn
* i * fil II11
I
i n
1Q6Cd(n.2n)105Cd
* RA 63a • BO 68
n n
° 11 12 13 U 15 16 17 18 19 20 En (MeV)
FAST NEUTRON CROSS-SECTIONS 251
6 |(mbH
50CH
116Cd(n,2n)115m'gCd
• PR 61 (m) x PR 61 (g)
+
11 12 13 14 15 16 17 18 19 20 E n (MeV)
6 h b H
113In(n,2n)112m,gIn
. GR 70 (m) x GR70 (g)
W x x H
252 BORMANN et al .
6 |(mbH
tan *
ï f r T ,
1 H
115In(n.2n)mmIn
. PR 61 (m) x ME 67 (m)
+ i 4 1
11 12 13 U 15 16 17 18 19 20 E n (MeV)
5
|(mb)-|
hooo-l
115In(n,2n)11Am'9In
. GR 70 (m) x GR 70 (g)
ttJLX-t-^HH
ï 1— ! T •"' "T"
° 11 12 13 U 15 16 17 18 19 20 En (MeV)
FAST NEUTRON CROSS-SECTIONS 253
254 BORMANN e t a l .
6 I M
121Sb(n.2n)120mSb
X BO 68 (m) • KA 68 (m)
POOW
* * * i
» i r~ 11 12 13 H 15 16 17 18 19 20 En (MeV)
6 Kmbll
POOCH
121Sb(n,2n)12°gSb
X BO 68 (g) • KA 68 (g)
i • i * i
I 1 I ° 11 12 13 U 15 16 17 18 19 20 En (MeV)
FAST NEUTRON CROSS-SECTIONS 255
6 Kmb)1
Iran i i
123Sb(n,2n)122Sb'
• PR 61 x BO 68
11 12 13 U 15 16 17 18 19 20 E n (MeV)
, 6 (mb)'
hoocU
l2&ie(n,2n)127m'9Te
• BI 70 (m) x BI 70 (g )
i i íH
11 12 13 K 15 16 17 18 19 20 E n (MeV)
256 BORMANN et a l .
6
M
hoocH
130Te(n,2n)129rn'9Te
. BI 70 (m) x B I 70 (g)
T Í * * J * * * i i i i i
i i 11 12 13 T¡ 15 15 17 18 19 20 ER (MeV)
| ( m b ) l
hOOCH
127I(n,2n)126I
• MA 53 A BO 62 x WA 72
i • 1
i — + — i
0 I i i « i i 1 1 i 1 1 i i 1 » 8 9 10 11 12 13 K 15 16 17 E n (MeV)
FAST NEUTRON CROSS-SECTIONS 257
6 |(mb)
tooo4
133Cs(n,2n)132Cs
x BO 62 • WA 72
t i f ^ 1 • f
11 12 13 U 15 16 17 18 19 20 En (MeV)
6 Ihb)
hooo-
KCfce(n,2n)139Ce
• BO 66 (m) BO 68 Im+g)
t
11 12 13 K 15 16 17 18 19 20 E n (MeV)
258 BORMANN et al.
6 limb)'
POOCH
K2Ce(n,2n)u1Ce
. BO 68
i — — i
+ *
11 12 13 H 15 16 17 18 19 20 E (MeV) n
6 |(mb)1
fi hOOCH
u1Pr(n.2nPPr
. FE 60 x KO 62
FAST NEUTRON CROSS-SECTIONS 259
6 limb)"
hoocH
I T
Pr(n,2n) Pr
x RA 63a • BO 68
° 11 12 13 U 15 16 17 18 19 20 (MeV)
6 KmbM
hoocH Í i
h 1 u2Ndln,2n)ul9Nd*
BI 70
"1 1 r-11 12 13 K 15 16 17 18 19 20 En (MeV)
260 BORMANN et a l .
6 (mb)
ZOOOJ
(1500
hooo
500
I1
j } } ^ í J
1 '
1"Sm(n,2n)1439 5m
x RA 63a • BO 68
- i » i
11 12 13 U 15 16 17 18 19 20 E n (MeV)
6 |(mb)-|
flOOW ÍÍ f í Í H - I
165Ho(n,2n)164Ho
x ME 67 (m)
• BO 68 (m+g)
f
ï H
—T f— 11 12 13 U 15 1 6 17 1 8 19 20 E p (MeV)
FAST NEUTRON CROSS-SECTIONS 2 6 1
6 ItmbH
OOCH
155Ho(n,2n)164m,gHo
• ST 70 Im) « ST70 (g)
ï i
6 limb)
tow
¥
168 Er(n,2n)157mEr
CA 67
11 12 13 K 15 16 17 18 19 20 E n (MeV)
262 BORMANN et a l .
6 M l 169Tm(n.2n)168Tm
TE 60
noooH
- i 1 i i i ••• i 9 10 11 12 13 % 15 16 17 18 ^ ( M e V )
M i llmbH
noooH
r " }
* í U \
* ' í l h f i l •
181To(n,2n)180lT'Ta
x PR 61 . BO 68 A BR 69
t - í -
° 11 12 13 U 15 16 17 18 19 20 En (MeV)
FAST NEUTRON CROSS-SECTIONS 263
6
llrel.Einh.)
2.0
1.5
1.0 4
0.5
wW(n,2n)183mW
. Z I 65
11 12 13 U 15 16 17 18 19 20 E„ (MeV)
6
Imb)
2 0 0 Û
h500J
hoooJ
,920s(n.2n),3l90:
f BI 70
i Ï i
5004
11 12 13 K 15 16 17 18 19 20 E n (MeV)
264 BORMANN et a l .
6 ( m b )
2000
h 5 0 0 4
t*1 HU
H H
i
1 9 1 I r ( n . 2 n ) 1 9 0 I r
. B I 7 0 ( m 2 )
* B I 7 0 ( g + m ^ )
tí0004
5 0 0 -
f " 1 T-11 1 2 13 14 15 1 6 1 7 1 8 19 2 0 E p ( M e V )
6
(mb)
20001
115004
5 0 0 4
» 1 w í t I 4
n o o c H J } i í Î i
1 9 8 P t ( n , 2 n ) 1 9 7 m , 9 P t
. B I 7 0 ( m )
x B I 7 0 ( m + g )
í
*
° 11 12 13 U 15 16 17 18 19 20 E n (MeV)
FAST NEUTRON CROSS-SECTIONS 265
6 , (mb)|
200
150
100
50
1 9 7Au(n.2n)1 9 6 mAu
X TE 60 • PR 61
l o 11 1 2 1 3 U 1 5 ~ 16 17 18 E n (MeV)
6 , (mb)
2000]
M
hooo
500
•ir ]vM\ t t T
197Au(n,2n)'9fjgAu'
x TE 60 • PR 61
10 11 12 13 14 15 16 17 18 19 E n ( M e V )
266 BORMANN e t a l .
6 HmbH
raw
I M Ê ® 1 '
203TI(n,2n)202Tl
x TE 60 • PR 61
* 1 * +
IÏ
8 9 10 11 12 13 U 15 16 17 18 19 20 21 E n (MeV)
6 limb)
Goaw
h500
1000
5004
20/>HQ(n.2n)203Ha
• FE 72 íTt H i H - t
° 11 12 13 U 15 16 17 18 19 20 E n (MeV)
FAST NEUTRON CROSS-SECTIONS 267
5 ' I m b )
2000j
P5cm
hooo
500 H
« f t * 204Pb(n.2n)203mPb
x AB 67
11 12 13 U 15 16 17 18 19 20 E n (MeV)
204Pb(n.2n)2039Pb*
6 (mb)
20001
h500H
hooo
500 J
A
* * « xTE 60 & VA 63 • DE 70
i i 1 i— 10 11 12 13 14 15 16 17 18 19 E n (MeV)
268 BORMANN et a l .
6 208Pb(n,2n)207mPb
(mb)
2000 X SH 62 . CA 67
H
t—
"T.
h
1
500- ' h t-1 - T
ri1
1000- I * '
Li
500- ï
n .
X
7 8 9 10 11 12 13 1 L, 15 16 E n (MeV)
G frnb)
2000-
232Th(n.2n)231Th G
frnb)
2000-X
i i i
K • TE 59
BU 61
1500-U "
* X iJL - r * x T X
Í " X H ^ *
000- ï
500 a
m
H 5-H
t *
0 IM
0 5 7 8 9 10 11 12 13 U 15 16 17 18 19 En IMeV)
FAST NEUTRON CROSS-SECTIONS 269
¡mb)
m ) !
P5004
hooo4
5004
232Th(n,2n)231Th
PR 61
ï a L
0 i i 12 Ï3 U 15 16 17 18 19 20 (MeV)
• 6 , (mbH
POOCH
2 3 8 U ( n . 2 n ) 2 3 7 U
. KN 58 x GR 61
- i 1 r
5 6 7 8 9 10 11 12 13 H 15 16 17 18 E n (MeV)
270 BORMANN et al.
R E F E R E N C E S T O G R A P H S
AB 67 ABELS, C . , BORMANN, M. , CARSTENS, W., Rep. EANDC(E)76"U", NEA, Paris (1967) 51. AB 69 ABBOUD, A. , DECOWSKI, P. , GROCHULSKI, W. , MARCINKOWSKI, A. , PIOTROWSKI, J . ,
SIWEK, K . , WILHELMI, Z . , Nucl. Phys. A139 (1969) 42. AB 69a ABBOUD, A. , DECOWSKI, P. , GROCHULSKI, W. , MARCINKOWSKI, A. , SIWEK, K. ,
TURKIEWICZ, I . , WILHELMI, Z. , Rep. IBJ 1147/I/PL (1969). AD 53 ADLER, H, , HUBER, P. , HXLG, W. , Helv. Phys. Acta 26 (1953) 349. AG 62 AGODI, A. , PAPPALARDO, G . , RICAMO, R., VINLIGUERRA, D. , Nuovo Cim. 5Ç23 (1962) 1136. AL 57 ALLEN, L., J r . , BIGGERS, W.A. , PRESTWOOD, R.J . , SMITH, R.K. , Phys. Rev. 107 (1957) 1363. AN 68 ANDREEV, M. F. , SEROV, V . l . , Sov. J. Nucl. Phys. 7 (1968) 454. AR 56 ARMSTRONG, A.H. , FREYE, G . M . , Phys. Rev. 103 (1956) 335. AR 64 ARNOLD, D . M . , RAYBURN, L.A. , Bull. Am. Phys. Soc. 9 (1964) 352. BA 55 BATCHELOR, R., AVES, R. , SKYRME, T. H.R., Rev. Sei. Instrum. 26 (1955) 1037. BA 59 BARRY, J . , COLEMAN, R., HAWKER, B. , PERKIN, J . , Proc. Phys. Soc. 74 (1959) 632. BA 61 BAYHURST, B. P., PRESTWOOD, R.J. , J. Inorg. Nucl. Chem. 23 (1961) 173. BA 61a BASS, R, , BONNER, T . W . , HAENNI, H. P. , Nucl. Phys. 23 (1961) 122. BA 62 BARRY, J. , J. Nucl. Energy AB 16 (1962) 467. BA 63 BARRY, J . , J. Nucl. Energy AB 17 (1963) 273. BA 64 BASS, R., FANGER, U . , SALEH FATMA, M. , Nucl. Phys. 56 (1964) 569. BA 65 BASS, R. , KRÜGER, K. , STAGINNUS, B. , HAUG, P. , Rep, EANDC(E)66"U ", NEA, Paris (1966) 64. BA 65a BASS, R. , BINDHARDT, C. , KRÜGER, K. , Rep. EANDC(E)57"U", NEA, Paris (1965) 1. BI 63 BIRK, M. , GOLDRING, G . , HILLMAN, P. , Nucl. Instrum. Methods 21 ( 1963) 197. BI 70 BISSEM, H . H . , BORMANN, M. , M AGIERA, E. , WARNEMÜNDE, R. , Nucl. Phys. A157( 1970) 481. BO 55 BOSTROM, N. A. , HUDSPETH, E. L. , MORGAN, I. L. , Phys. Rev. 99 (1955) 643 A. BO 61 BORMANN, M. , CIERJACKS, S. , LANGKAU, R., NEUERT, H. , POLLEHN, H. , J. Phys. Rad.
22 (1961) 602. BO 62 BORMANN, M. , CIERJACKS, S. , LANGKAU, R. , NEUERT, H. , Z. Phys. 166 (1962) 477. BO 62a BORMANN, M. , Z. Naturforsch. 17a (1962) 479. BO 63 BORMANN, M. , CIERJACKS, S. , FRETWURST, E. , GIESECKE, K. - J . , NEUERT, H. , POLLEHN, H. ,
Z. Phys. 174 (1963) 1. BO 64 BONAZZOLA, G.C. , BROUETTO, P. , CHIAVASSA, E. , SPINOGLIO, R. , PASQUARELLI, A . ,
Nucl. Phys. 51 (1964) 337. BO 65 BORMANN, M. , FRETWURST, E. , SCHEHKA, P. , WREGE, G. , BUTTNER, H. , LINDNER, A. ,
MELDNER, H. , Nucl. Phys. 63 (1965) 438. BO 65a BORMANN, M. , SCHEHKA, P., DREYER, F., FRETWURST, E. , Rep. EANDC(E)57"U ", NEA, Paris
(1965) 17. BO 66 BORMANN, M. , DREYER, F . , ZIELINSKI, U . , Rep. EANDC(E)66"U", NEA, Paris (1966) 42. BO 66a BORMANN, M. , DREYER, F . , SEEBECK, U. , VOIGTS, W. , Z. Naturforsch. 21a (1966) 988. BO 67 BORMANN, M . , DREYER, F . , NEUERT, H. , RIEHLE, I . , ZIELINSKI, U . , Nuclear Data for
Reactors - 1966 (Proc. Conf. Paris, 1966) 1, IAEA, Vienna (1967) 225. BO 68 BORMANN, M . , BEHREND, A. , RIEHLE, I . , VOGEL, O. , Nucl. Phys. A115 (1968) 309. BO 69 BORMANN, M . , LAMMERS, B., Nucl. Phys. A130 (1969) 195. BR 52 BROLLEY, J. E. , FOWLER, J. L., SCHLACKS, L. K. , Phys. Rev. 88 (1952) 618. BR 61 BRILL, O. D . , VLASOV, N . A . , KALININ, S. P . , SOKOLOV, L .S . , Sov. Phys. - Dokl. 6 (1961) 24. BR 69 BRZOSKO, J. , GIERUK, E., SOLTAN, A. , WILHELMI, Z . , Nucl. Phys. A123 (1969) 603. BU 61 BUTLER, J. P. , SANTRY, D.C. , Can. J. Chem. 39 (1961) 689. BU 63 BUTLER, J. P. , SANTRY, D . C . , Can. J. Phys. 41 (1963) 372. CA 62 CALVI, G. , POTENZA, R., RICAMO, R., VINCIGUERRA, D. , Nucl. Phys. 39 (1962) 621. CA 64 CARROLL, E. E., J r . , SMITH, G . C . , STOOKSBERRY, R. W. , Trans. Am. Nucl. Soc. 7 (1964) 268. CA 65 CARROLL, E. E., J r . , SMITH, G . C . , Nucl. Sei. Eng. 22 (1965) 411. CA 67 CARSTENS, W. , Diplomarbeit, Hamburg (1967). CH 65 CHOJNACKI, S . , Int. Conf. Study of Nuclear Structure with Neutrons, Antwerp (1965). CH 65a CHOJNACKI, S. , DECOWSKI, P. , GIERUK, E. , GROCHULSKI, W. , MARCINKOWSKI, A. ,
SIWEK, K. , SLEDZINSKA, I . , WILHELMI, Z . , Int. Conf. Study of Nuclear Structure with Neutrons, Antwerp (1965).
CI 62 CIERJACKS, S . , Diplomarbeit, Hamburg (1962). CO 50 COON, J. H . , Phys. Rev. 80 (1950) 488. CO 56 COHEN, A. V. , WHITE, P. H. , Nucl. Phys. 1 (1956) 73.
FAST NEUTRON CROSS-SECTIONS 271
CR 60 McCRARY, J. H. , MORGAN, I. L . , Bull. Am. Phys. Soc. 5 (1960) 246.
CR 62 CROSS, W . G . , CLARKE, R. L. , Prog. Rep. AECL-1542 (1962).
CR 69 CRUMPTON, D . , COX, A. J . , COOPER, P. N . , FRANÇOIS, P .E . , HUNT, S. E . , J. Inorg. Nucl .
Chem. 31 (1969) 1.
CS 65 CSIKAI, J . , Int. Conf. Study of Nuclear Structure with Neutrons, Antwerp (1965) 102.
CS 66 CSIKAI, J . , ATOMKI (At. Kut. In tez . ) Kozl. 8 (1966) 79.
CU 60 CUZZOCREA, P . , Nuovo Cim. 16 (1960) 450.
CU 63 CUZZOCREA, P . , PAPPALARDO. G. , Nucl . Phys. 48 (1963) 686.
CU 68 CUZZOCREA, P . , PERILLO, E. , NOTARRIGO, S . , Nuovo C im. 54B(1968) 53.
DE 65 DEBERTIN, K. , RÖSSLE, E. , Nucl. Phys. 70 (1965) 89.
DE 68 DECOWSKI, P . , GROCHULSKI, W. , MARCINKOWSKI, A . , SIWEK, K. , SLEDZINSKA, I . ,
WILHELMI, Z. , Nucl . Phys. A112 (1968) 513.
DE 70 DECOWSKI, P. , GROCHULSKI, W. , MARCINKOWSKI, A . , KAROLYI, J. , PIOTROWSKI, J . ,
SAAD, E. , SIWEK-WILCZYNSKA, K . , TURKIEWICZ, I. M. , WILHELMI, Z . , Rep. IBJ 1197/I/PL (1970).
FE 60 FERGUSON, J. M. , THOMPSON, W. E . , Phys. Rev. 118 (1960) 228.
FE 72 FEDDERSEN, K. H . , Diplomarbeit , Hamburg (1972).
GA 61 GABBARD, F . , private communica t ion , quoted in Rep. BNL-325 (1965).
GA 61a GABBARD, F. , private communicat ion, quoted in J. Nucl. Energy AB 19 (1965) 907.
GA 62 GABBARD, F . , KERN, B . D . , Phys. Rev. 128 (1962) 1276.
GA 70 GANGRSKU, Y. P. , KHARISOV, I. F . , Sov. J. Nucl. Phys. 1 2 ( 1 9 7 1 ) 6 1 1 .
GL 62 GLOVER, R. N. , WEIGOLD, E. , Nucl. Phys. 29 (1962) 309.
GO 60 GONZÁLEZ, L. , RAPAPORT, J . , LOEF, J . J . van, Phys. Rev. 120 (1960) 1319.
GO 61 GONZÁLEZ, L. , TRIER, A . , LOEF, J .J . van. Phys. Rev. 126 (1961) 271.
GR 58 GRÜNDL, J. A . , HENKEL, R. L. , PERKINS, B. L. , Phys. Rev. 109 (1958) 425.
GR 61 GRAVES, CONNOR, FORD, WARREN, cited in VANDENBOSCH, R. , HUIZENGA, J . R . ,
MILLER, W. F. , KEBERLE, E. M . , Nucl. Phys. 25 (1961) 511.
GR 70 GROCHULSKI, W. , KAROLYI, J . , MARCINKOWSKI, A . , PIOTROWSKI, J. , SAAD, E. , SIWEK, K . ,
WILHELMI, Z . , Rep. INR 1197/I/PL (1970).
HE 54 HENKEL, R. L. , private communicat ion, c i ted in Rep. BNL-325, Suppl. 2 (1964).
HI 66 HILLE, P. , MÜNZER, H . , Acta Phys. Austriaca 23 (1965) 44.
HO 72 HÖLSCHER, H . H . , Diplomarbeit , Hamburg (1972).
HU 58 HUGHES, D . , SCHWARTZ, R., private communicat ion, c i ted in LISKIEN, H . , PAULSEN, A . ,
Rep. EUR 119e (1968).
HU 59 HUDSON, O. M . , MORGAN, I. L . , Bull. Am. Phys. Soc. 11 4(1959) 97.
HU 55 HÜRLIMANN, T . , HUBER, P. , Helv. Phys. Acta 28 (1955) 33.
IM 60 IMHOF, W. L. , private communicat ion (1960), c i ted in Rep. BNL-325 (1965).
IM 61 IMHOF, W . L . , pr ivate communica t ion (1961), ci ted in Rep. BNL-325 (1965).
JE 63 JERONYMO. J. M. F. , MANI, G. S. , OLKOWSKY, J . . SADEGHI. A. . WILLIAMSON, C. F. ,
Nucl. Phys. £7 (1963) 157.
JE 63a JERONYMO, J. M. F. , MANI, G. S . , OLKOWSKY, J. , SADEGHI, A . , WILLIAMSON. C . F . ,
J. Phys. (Paris) 24 (1963) 816.
JE 65 JESSEN, P . , BORMANN, M. , DREYER, F . , NEUERT, H. , Nucl. Data 1A (1965) 103.
JO 65 JOHNSON, R . G . , SALISBURY, S. , VAUGHN, F.J. , Rep. LMSC-4-50-62-1 (Oct.1962).
JU 62 DeJUREN, J, A. , STOOKSBERRY, R. W . , WALLIS, M . , Phys. Rev. 127(1962) 1229.
KA 68 KANDA, Y . , J. Phys. Soc. Jap. 24 (1968) 17.
KE 59 KERN, B . D . , THOMPSON, W. E. , FERGUSON, J. M. , Nucl. Phys. 10 (1959) 226.
KL 48 KLEMA, E. , HANSON, A . , Phys. Rev. 73 (1948) 106.
KN 58 KNIGHT, J. D. , SMITH, R. K . , WARREN, B. , Phys. Rev. U 2 (1958) 259.
KO 60 KOEHLER, D. R. , ALFORD, W. L . , Phys. Rev. 119 (1960) 311.
KO 62 KOEHLER, D. R. , ALFORD, W . L . , Bull. Am. Phys. Soc. 5 (1960) 443 C l l .
KO 63 KONUN, J. , LAUBER, A . , Nucl. Phys. 48 (1963) 191.
KR 59 KREGER, W. , KERN, B .D . , Phys. Rev. 113 (1959) 890.
LA 63 LANGKAU, R., Z. Naturforsch. 18a (1963) 914.
LA 65 LAUBER, A . , MALMSKOG, S. , Nucl . Phys. 73 (1965) 234.
LI 65 LISKIEN, H . , PAULSEN, A . , J. Nucl. Energy AB 19 (1965) 73.
LI 65a LISKIEN, H . , PAULSEN, A . , Nucl . Phys, 63 (1965) 393.
LI 66 LISKIEN, H . , PAULSEN, A. , Nukleonik 8 (1966) 315.
LÜ50 LÖSCHER, E . , RICAMO, R. , SCHERRER, P . , ZÜNTI, W . , Helv. Phys. Acta 23 (1950) 561.
MA 53 MARTIN, H . C . , TASCHEK, R. F . , Phys. Rev. 89 (1953) 1302.
272 BORMANN et al .
MA 55 MARION, J. B. , BRUGGER, R. M . , Phys. Rev. 100 (1955) 69. MA 56 MARION, J. B. , BRUGGER, R. M. , CHAPMAN, R. A . , Phys. Rev. 101 (1956) 247. MA 60 MANI, G. S . , McCALLUM, G . J . , FERGUSON, A. T . G . , Nucl . Phys. 19 (1960) 535. MA 60a MANI, G. S . , TOMBRELLO, T. A . , RAO, D. A . A . S . N . , Nucl . Phys. 21 (1960) 344. MA 66 MATHUR, S .C . , MORGAN, I. L . , Nucl . Phys. 75 (1966) 561. ME 48 METZGER, J . , ALDER, F . , HUBER, P . , Helv. Phys. Acta 21 (1948) 278. ME 63 MEADOWS, J. W . , WHALEN, J. F . , Phys. Rev. 130 (1963) 2022. ME 67 MENLOVE, H. O . , COOP, K. L., GRENCH, H . A . , Phys. Rev. 163 (1967) 1308. MO 58 MORITA, S . , J. Phys. Soc. Jap. 13 (1958) 431. NA 62 NAKAI, K . , GOTOH, H . , AMANO, H . , J. Phys. Soc. Jap. 17 (1962) 1215. NA 65 NAGEL, W . , ATEN, A. H. W. , J r . , Physica 31 (1965) 1091. OK 67 OKU MURA, S . , Nucl . Phys. A93 (1967) 74. PA 65 PAULSEN, A. , LISKIEN, H . , Nukleonik 7 (1965) 117. PA 65b PAULSEN, A . , LISKIEN, H . , J. Nucl. Energy AB 19 (1965) 907. PA 66 PAI, H. L . , Can. J. Phys. 44(1966) 2337. PA 67 PAULSEN, A . , Nukleonik 10 (1967) 91. PA 70a PAULSEN. A . , WIDERA, R. , Z. Phys. 238 (1970) 23. PE 61 PERKIN, J. L . , private communica t ion , quoted in Rep. BNL-325, Suppl. 2 (1966). PI 63 PICARD, J . , WILLIAMSON, C. F . , J. Phys. (London) 24 (1963) 813. PI 65 PICARD, J. , WILLIAMSON, C. F . , Nucl . Phys. 63 (1965) 673. PR 61 PRESTWOOD, R. J . , BAYHURST, B. P . , Phys. Rev. 121 (1961) 1438. PR 69 PRESSER, G . , BASS, R. , KRÜGER, K . , Nucl. Phys. A131 (1969) 679. RA 58 RAPAPORT, J . , LOEF, J . J . van, Phys. Rev. 114 (1958) 565. RA 62 RAYBURN, L . A . , Bull. Am. Phys. Soc. 7 (1962) 335. RA 63 RAYBURN, L. A . , Phys. Rev. 130 (1963) 731. RA 63a RAYBURN, L . A . , Bull. Am. Phys. Soc. 8 (1963) 121. RI 51 RICAMO, R. , Nuovo Cim. 8 (1951) 383. RI 66 RIEDER, R., MUNZER, H . , Acta Phys. Austriaca 23 (1966) 42. RI 68 RIMMER, E . , FISHER, P . , Nucl. Phys. A108 (1968) 567. SA 61 SAYRES, A . R . , JONES, K. W., WU, C. S . , Phys. Rev. 122 (1961) 1853. SA 63 SANTRY, D. C . , BUTLER, J. P . , Can . J. Chem. 41 (1963) 123. SA 64 SANTRY, D . C . , BUTLER, J. P . , Can. J. Phys. 42(1964) 1030. SA 65 SALISBURY. S. R. , CHALMERS, R. A . , Phys. Rev. 140 (1965) B 305. SA 66 SANTRY, D . C . , BUTLER, J. P . , Can. J. Phys. 44(1966) 1183. SC 61 SCHMITT, H . W . , HALPERIN, J . , Phys. Rev. 121 (1961) 827. SC 70 SCOBEL, W . , BORMANN, M . , Z. Naturforsch. 25a (1970) 1406. SE 61 SEEMANN, K. W. , MOORE, W. E . , Bull. Am. Phys. Soc. 6(1961) 237. SH 62 SHUNK, E. R . , WAGNER, R . T . , HEMMENDINGER, A . , Bull. Am. Phys. Soc. 7 (1962) 334. SH 68 SHIOKAWA, T . , YAGI, M . , KAJI, H . , SASAKI, T . , J. Inorg. Nucl . Chem. 30 (1968) 1. SM 60 SMITH, D . M . , BOSTROM, N. A. , HUDSPETH, E. L. , Phys. Rev. 117 (1960) 514. ST 57 STELSON, P. H. , CAMPBELL, E . C . , Phys. Rev. 106 (1957) 1252. ST 70 STEINER, E. , HUBER, P. , SALATHE, W . , WAGNER, R. , Helv. Phys. Acta 43 (1970) 17. SU 66 SURESH, C. , MATHUR, S. C . , MORGAN, I. L. , Nucl. Phys. 75 (1966) 561. TE 58 TERRELL, J. , HOLM, D . M . , Phys. Rev. 109 (1958) 2031. TE 59 TEWES, H . A . , CARETTO, A . A . , MILLER, A. E . , Bull. Am. Phys. Soc. 4 (1959) 445. TE 60 TEWES, H . A . , CARETTO, A . A . , MILLER, A . E . , NETHAWAY, D. R. , Rep. UCRL-6028T (1960). TR 62 TRIER, A . , Z. Naturforsch. 17a (1962) 275. UR 61 URECH, S . , JEANUET, E. , ROSSEL, J . , Helv. Phys. Acta 34 (1961) 954. VA 61 LOEF, J . J . van, Nucl . Phys. 24(1961) 340. VA 63 VAUGHN, F . J . , private communica t ion ( 1963), ci ted in Rep. BNL-325 (1965). WA 72 WAGENER, H. H . , Diplomarbeit , Hamburg (1972). WE 62 WEIGOLD, E . , GLOVER, R. N. , Nucl . Phys. 32 (1962) 106. WI 61 WILLIAMSON, C . F . , Phys. Rev. 122 (1961) 1877. WI 61a WILLIAMSON, C. F . , PICARD, J. , J. Phys. Rad. 22 (1961) 651. W Ö 6 6 WÖLFER, G . , BORMANN, M . , Z. Phys. 194 (1966) 75. ZI 65 ZIELINSKI, U. , Diplomarbeit , Hamburg (1965).
CROSS-SECTIONS F O R FISSION NEUTRON S P E C T R U M INDUCED REACTIONS
A. CALAMAND Nuclear Data Section, International Atomic Energy Agency, Vienna, Austria
ABSTRACT. A review is given of cross-sections averaged in a uranium-235 fission neutron spectrum. The review extends to all integral measurements available in the literature up to April 1973 for (n, p) , (n, a ) , (n, 2n) and ( n , n ' ) reactions. Whenever possible, the cross-sections have been renormalized to a standard value of 1250 ± 70 mb for the uranium-235 fission cross-section averaged in the thermal fission neutron spectrum of uranium-235. Recommended values have been attributed. Furthermore, averaged (n, p) , (n , a ) and (n, 2n) cross-sections have been estimated for all stable and a few long-lived isotopes and are compiled in a separate table.
INTRODUCTION
T h e f a s t c o m p o n e n t of a r e a c t o r n e u t r o n f lux i n d u c e s a c t i v i t y which can be u s e d f o r n e u t r o n a c t i v a t i o n a n a l y s i s , but which can a l s o i n t e r f e r e w i th a c t i v i t y induced by t h e r m a l n e u t r o n s .
In bo th c a s e s , a knowledge of the c r o s s - s e c t i o n s a v e r a g e d in the f a s t n e u t r o n s p e c t r u m i s r e q u i r e d . S ince the s h a p e of t h i s f a s t n e u t r o n s p e c t r u m c h a n g e s f r o m one r e a c t o r to a n o t h e r , and even f r o m one pos i t i on in the r e a c t o r t o a n o t h e r , one m u s t r e f e r to a p r e c i s e l y d e f i n e d a v e r a g e d c r o s s -s e c t i o n . F o r t h i s the c r o s s - s e c t i o n a v e r a g e d in the u r a n i u m - 2 3 5 t h e r m a l f i s s i o n n e u t r o n s p e c t r u m i s u s e d :
w h e r e a (E) i s the a c t i v a t i o n c r o s s - s e c t i o n and x(E) the n o r m a l i z e d f lux d e n s i t y d i s t r i b u t i o n of the f i s s i o n n e u t r o n s p e c t r u m ( ^\(E) dE = 1).
E s t i m a t e s of CT a r e m a d e e i t h e r by i n t e g r a l o r d i f f e r e n t i a l m e a s u r e m e n t s . In i n t e g r a l m e a s u r e m e n t s , the s a m p l e s a r e e x p o s e d to f i s s i o n n e u t r o n s , and a i s d e d u c e d f r o m the m e a s u r e d i n d u c e d a c t i v i t y and the d e t e r m i n e d f i s s i o n n e u t r o n f l ux . In d i f f e r e n t i a l m e a s u r e m e n t s , CT(E) i s m e a s u r e d and ct i s c o m p u t e d us ing v a r i o u s r e p r e s e n t a t i o n s of x(-E).
In the fo l lowing , a r e v i e w of i n t e g r a l m e a s u r e m e n t s f o r (n, p), (n, a ) , (n, 2n) and (n, n ' ) r e a c t i o n s , and an e s t i m a t i o n of (n, p), (n, a ) and (n, 2n) a v e r a g e d c r o s s - s e c t i o n s f o r t he s t a b l e and l o n g - l i v e d i s o t o p e s of the e l e m e n t s f r o m l i t h i u m to b i s m u t h a r e g iven .
R E V I E W O F I N T E G R A L M E A S U R E M E N T S F O R (n, p), (n, a), (n, 2a) AND (n, n ' ) REACTIONS
In t h i s r e v i e w , we a r e i n t e r e s t e d in t h e c o m p i l a t i o n of a l l a v a i l a b l e d a t a r a t h e r than in a v e r y p r e c i s e a s s e s s m e n t of a f e w r e a c t i o n s i m p o r t a n t f o r
OO
0
273
274 CAL AM AND
n e u t r o n d o s i m e t r y a n d / o r f a s t r e a c t o r t e c h n o l o g y . T h i s m e a n s t h a t we s h a l l not d i s c u s s o r a n a l y s e t he d i s c r e p a n c i e s b e t w e e n d i f f e r e n t i a l and i n t e g r a l m e a s u r e m e n t s . F o r m o s t r e a c t i o n s , t he a g r e e m e n t b e t w e e n the r e s u l t s of e a c h m e t h o d i s a d e q u a t e f o r o u r p u r p o s e .
W e h a v e c h o s e n to r e v i e w only the i n t e g r a l m e a s u r e m e n t s , s i m p l y b e c a u s e t h e y a r e m o r e n u m e r o u s than the d i f f e r e n t i a l o n e s wh i l e a t the s a m e t i m e i n c l u d i n g p r a c t i c a l l y a l l of t h e m . T h e r e f o r e , if no t o t h e r w i s e i n d i c a t e d , the o r i g i n a l v a l u e s q u o t e d in t he t a b l e s a r e d e r i v e d f r o m i n t e g r a l m e a s u r e -m e n t s . In s o m e r a r e c a s e s , w h e r e i n t e g r a l m e a s u r e m e n t s a r e no t a v a i l a b l e o r a r e too d i s c r e p a n t , we h a v e u s e d d i f f e r e n t i a l o r c a l c u l a t e d d a t a .
In s o m e i n t e g r a l m e a s u r e m e n t s , g r e a t c a r e w a s e x e r c i s e d in e x p o s i n g the s a m p l e s to a n e u t r o n f l u x tha t w a s a s c l o s e a s p o s s i b l e t o a t h e r m a l n e u t r o n i n d u c e d u r a n i u m - 2 3 5 f i s s i o n n e u t r o n s p e c t r u m . T h i s w a s a c h i e v e d u s i n g f i s s i o n p l a t e o r c o n v e r t e r t e c h n i q u e s . In m o s t o t h e r c a s e s , i t w a s s i m p l y c h e c k e d t h a t the r e a c t o r s p e c t r u m did not d e v i a t e " s i g n i f i c a n t l y " f r o m a p u r e f i s s i o n s p e c t r u m . T h i s s p e c t r u m e q u i v a l e n c e i s t r u e in g e n e r a l f o r the e n e r g y r a n g e a b o v e abou t 1. 5 M e V . T h e r e f o r e , f o r t h r e s h o l d r e a c t i o n s , t h e f i s s i o n n e u t r o n s p e c t r u m i s u s e d a s z e r o - o r d e r a p p r o x i m a t i o n t o t he t r u e s p e c t r u m , i n d e p e n d e n t of r e a c t o r type a n d i r r a d i a t i o n p o s i t i o n .
M o s t of the i n t e g r a l m e a s u r e m e n t s w e r e m a d e r e l a t i v e to a s t a n d a r d r e a c t i o n a n d h a v e t h e r e f o r e to be r e n o r m a l i z e d f o r i n t e r c o m p a r i s o n . T a b l e I g i v e s t h e m o s t c o m m o n l y u s e d s t a n d a r d r e a c t i o n s and the v a l u e s a d o p t e d in t h i s r e v i e w . T h e s e v a l u e s a r e t a k e n f r o m a r e p o r t b y A . F a b r y (Ref . F A 7 2 ) , w h i c h i s a n e v a l u a t i o n of e x p e r i m e n t a l m i c r o s c o p i c i n t e g r a l c r o s s - s e c t i o n s m e a s u r e d in the t h e r m a l f i s s i o n n e u t r o n s p e c t r u m of u r a n i u m - 2 3 5 f o r 2 9 n u c l e a r r e a c t i o n s r e l e v a n t to n e u t r o n d o s i m e t r y and f a s t r e a c t o r t e c h n o l o g y .
R e . n o r m a l i z a t i o n
W h e n e v e r p o s s i b l e a n d if not a l r e a d y r e n o r m a l i z e d b y F a b r y , t h e o r i g i n a l d a t a h a v e b e e n r e n o r m a l i z e d a c c o r d i n g to the s t a n d a r d v a l u e s g iven in T a b l e I . F o r s o m e l e s s c o m m o n s t a n d a r d s , r e c o m m e n d e d v a l u e s f r o m T a b l e s II, III a n d IV h a v e b e e n u s e d .
T h e r e n o r m a l i z a t i o n i s done by m u l t i p l y i n g , f o r e a c h r e a c t i o n , the o r i g i n a l d a t a by t he r a t i o of t he new s t a n d a r d v a l u e to the old one . B r a n c h i n g r a t i o s h a v e not b e e n t a k e n in to a c c o u n t in t h i s r e n o r m a l i z a t i o n . E r r o r s h a v e b e e n c o n s i d e r e d a s s t a n d a r d d e v i a t i o n s . R e n o r m a l i z e d e r r o r s a l w a y s i n c l u d e t he u n c e r t a i n t y in t he s t a n d a r d c r o s s - s e c t i o n u s e d f o r r e n o r m a l i z a t i o n .
In F a b r y ' s e v a l u a t i o n a l e a s t - s q u a r e s m e t h o d i s u s e d t o p r o d u c e a r e c o m m e n d e d s e t of f i s s i o n s p e c t r u m i n t e g r a l d a t a s c a l e d to a un ique s t a n d a r d , wh ich h a s b e e n c h o s e n to be the u r a n i u m - 2 3 5 f i s s i o n c r o s s - s e c t i o n a v e r a g e d in the u r a n i u m - 2 3 5 t h e r m a l f i s s i o n n e u t r o n s p e c t r u m and f o r wh ich a v a l u e of 12 50 m b h a s b e e n a c c e p t e d .
F a b r y f i r s t r e n o r m a l i z e d e x p e r i m e n t a l d a t a s e t s of v a r i o u s a u t h o r s to h i s own e x p e r i m e n t a l d a t a s e t , f o r w h i c h a u r a n i u m - 2 3 5 s t a n d a r d v a l u e of 1335 m b had b e e n a c c e p t e d . Al l the r e n o r m a l i z e d d a t a s e t s , t o g e t h e r w i t h F a b r y ' s d a t a s e t , w e r e t h e n s c a l e d t o a v a l u e of 1250 m b f o r the f i s s i o n s p e c t r u m a v e r a g e d u r a n i u m - 2 3 5 f i s s i o n c r o s s - s e c t i o n .
C o n s e q u e n t l y , a l l r e n o r m a l i z e d v a l u e s a p p e a r i n g in t he t a b l e s a r e l i n k e d to t he u r a n i u m - 2 3 5 s t a n d a r d v a l u e . E x c e p t f o r the v a l u e s r e n o r m a l i z e d b y F a b r y , t he a b s o l u t e e r r o r s on r e n o r m a l i z e d v a l u e s i n c l u d e a n a b s o l u t e e r r o r of 70 m b on the u r a n i u m - 2 3 5 s t a n d a r d v a l u e .
FISSION NEUTRON AVERAGED CROSS-SECTIONS 275
D e t e r m i n a t i o n of r e c o m m e n d e d v a l u e s
K e e p i n g in m i n d the p r a c t i c a l u s e of t h e s e t a b l e s , we h a v e d e c i d e d to give a " r e c o m m e n d e d " v a l u e f o r e a c h s i n g l e r e a c t i o n a p p e a r i n g in t he t a b l e s , e v e n if s o m e v a l u e s a r e of d o u b t f u l q u a l i t y .
F o r the r e a c t i o n s w h i c h he h a s e v a l u a t e d , F a b r y r e c o m m e n d s v a l u e s t h a t a r e a w e i g h t e d a v e r a g e of h i s r e n o r m a l i z e d and t h e n s c a l e d v a l u e s . In m o s t c a s e s , F a b r y ' s r e c o m m e n d e d v a l u e s a r e a l s o o u r s , e x c e p t f o r t he e r r o r s w h i c h , in o u r c a s e , a l w a y s i n c l u d e t h e e r r o r in the u r a n i u m - 2 3 5 s t a n d a r d . T h e s e v a l u e s a r e s t r o n g l y r e c o m m e n d e d .
F o r the c r o s s - s e c t i o n s no t e v a l u a t e d by F a b r y a s e l e c t i o n h a s b e e n m a d e a m o n g the a v a i l a b l e r e n o r m a l i z e d v a l u e s . A w e i g h t e d a v e r a g e of the s e l e c t e d v a l u e s w a s then p e r f o r m e d u s i n g the i n v e r s e of the s q u a r e d e r r o r s a s w e i g h t . A v e r a g e d v a l u e s of a t l e a s t t h r e e r e n o r m a l i z e d v a l u e s a g r e e i n g w i t h i n 15% a r e a l s o s t r o n g l y r e c o m m e n d e d . Both t h e s e v a l u e s a n d F a b r y ' s r e c o m m e n d e d v a l u e s a p p e a r u n d e r l i n e d in the t a b l e s .
O t h e r " r e c o m m e n d e d " v a l u e s a r e : e i t h e r t h e a v e r a g e of d i s c r e p a n t v a l u e s , o r the a v e r a g e of on ly two a g r e e i n g v a l u e s , o r no a v e r a g e a t a l l f o r s i n g l e m e a s u r e m e n t s .
S t r u c t u r e of T a b l e s II, III, IV a n d V
T a b l e s II, III, IV a n d V s u m m a r i z e t he s t a t u s of i n t e g r a l m e a s u r e m e n t s . F o r e a c h r e a c t i o n a l l d a t a a v a i l a b l e in the c o m m o n l i t e r a t u r e up t o A p r i l 1973 a r e g iven , t o g e t h e r wi th t he s t a n d a r d u s e d , if t h i s i s known o r r e l e v a n t . T h e f i r s t c o l u m n g i v e s the r e a c t i o n s . In the s e c o n d c o l u m n a p p e a r the r e f e r e n c e s t o the o r i g i n a l v a l u e s , w h i c h a r e g iven in the t h i r d c o l u m n . T h e f o u r t h c o l u m n g i v e s the s t a n d a r d u s e d b y the a u t h o r . T h e n u m b e r s in p a r e n t h e s e s r e f e r to n o t e s , a l i s t of w h i c h i s g iven fo l l owing T a b l e V . R e n o r m a l i z e d v a l u e s a r e g iven in t he f i f t h c o l u m n and r e c o m m e n d e d v a l u e s in t he s i x t h .
T h e b o x e s d r a w n wi th in the t a b l e s f o r s o m e r e a c t i o n s c o n t a i n the o r i g i n a l d a t a a n d t h e i r r e n o r m a l i z e d v a l u e s u s e d by F a b r y in h i s e v a l u a t i o n . T h e r e s u l t of the e v a l u a t i o n , F a b r y ' s r e c o m m e n d e d v a l u e , g iven in the t h i r d c o l u m n , a p p e a r s in t he l a s t l i n e of the box, a t t a c h e d to t he u n d e r l i n e d r e f e r e n c e F A 7 2 . O u r r e c o m m e n d e d v a l u e , w h i c h i s i d e n t i c a l to F a b r y ' s v a l u e e x c e p t f o r t he e r r o r a s e x p l a i n e d p r e v i o u s l y , i s g iven in the l a s t c o l u m n . T h e d o t t e d l i n e w i th in t h e box s e p a r a t e s the m e a s u r e m e n t s p e r f o r m e d wi th f i s s i o n p l a t e s o r c o n v e r t e r ( u p p e r p a r t ) f r o m the o n e s done b y e x p o s u r e to p i l e n e u t r o n s ( l o w e r p a r t ) .
T h e r e n o r m a l i z e d v a l u e s s e l e c t e d f o r a v e r a g i n g a r e m a r k e d wi th a s h o r t l i n e on t h e r i g h t - h a n d s i d e . T h e b r a c e } c o l l e c t s the r e n o r m a l i z e d v a l u e s in a n a v e r a g e r e c o m m e n d e d v a l u e . A b s o l u t e e r r o r s g iven in p a r e n t h e s e s a r e t h o s e t h a t h a v e b e e n a r b i t r a r i l y c h o s e n when no e r r o r h a d b e e n g iven by the a u t h o r .
E S T I M A T E D A V E R A G E FISSION N E U T R O N C R O S S - S E C T I O N S F O R (n, p) , (n, a ) AND (n, 2n) R E A C T I O N S
T a b l e s II to V a r e f a r f r o m b e i n g c o m p l e t e a n d n u m e r o u s c r o s s - s e c t i o n s r e q u i r e d by the e x p e r i m e n t a l i s t a r e unknown, h e n c e t h e n e e d f o r a c o m p l e t e e s t i m a t i o n . S o m e p u b l i c a t i o n s g ive c r o s s - s e c t i o n s w h i c h h a v e b e e n t h e o r e t i -c a l l y c a l c u l a t e d ( s e e , f o r e x a m p l e , P e a r l s t e i n ' s c a l c u l a t i o n s (Ref . P L 7 3 )
276 CAL AM AND
u s i n g a n e m p i r i c a l m o d e l b a s e d on s t a t i s t i c a l t h e o r y f o r n u c l i d e s h a v i n g 21 to 41 p r o t o n s ) o r e v a l u a t e d ( s ee , f o r e x a m p l e , the e v a l u a t i o n by P o p e a n d S t o r y (Ref . P 0 7 3 ) u s i n g the Un i t ed K i n g d o m N u c l e a r D a t a L i b r a r y f o r 64 d a t a f i l e s ) . But , s o f a r , on ly R o y and Hawton ( R e f . R 0 6 0 ) h a v e a t t e m p t e d an e s t i m a t i o n c o v e r i n g a l l s t a b l e i s o t o p e s a n d a f ew l o n g - l i v e d r a d i o n u c l i d e s f r o m l i t h i u m to b i s m u t h . S i n c e the n u m b e r of a v a i l a b l e m e a s u r e m e n t s on w h i c h the e s t i m a t i o n i s b a s e d h a s n e a r l y d o u b l e d s i n c e 1960, we though t i t t o b e u s e f u l t o r e v i e w the v a l u e s e s t i m a t e d by R o y and Hawton .
B a s i s of the e s t i m a t i o n
H u g h e s (Ref . HU53) h a s d e f i n e d a u s e f u l q u a n t i t y E e f f , c a l l e d the e f f e c t i v e e n e r g y , a s s u m i n g tha t the c r o s s - s e c t i o n cr(IC) i s p r o p o r t i o n a l to t h e p e n e -t r a b i l i t y P ( E ) of t he C o u l o m b b a r r i e r w h i c h c o n f r o n t s t he c h a r g e d p a r t i c l e l e a v i n g the c o m p o u n d n u c l e u s . In t h i s c a s e , the r e a c t i o n r a t e , a s a f u n c t i o n of t he e n e r g y fS of the i n c o m i n g n e u t r o n s , i s p r o p o r t i o n a l to the p r o d u c t of P ( E ) and x(JE). T h u s the s p e c t r u m - a v e r a g e d c r o s s - s e c t i o n i s p r o p o r t i o n a l t o t he a r e a u n d e r the c u r v e x(-E) P(-E) in F i g . 1.
NEUTRON ENERGY
FIG. 1. Eeff is defined in such a way that area A is equal to area B.
FISSION NEUTRON AVERAGED CROSS-SECTIONS 277
A s s h o w n in F i g . 1, E eff i s d e f i n e d a s t h e e n e r g y f o r w h i c h t h e a r e a m a r k e d A i s e q u a l t o t h e a r e a m a r k e d B, s o t h a t t h e a r e a u n d e r t h e c u r v e X(E) P ( E ) i s the s a m e a s t h e o n e d e l i m i t e d b y X (E ) a n d a v e r t i c a l d o t t e d l i n e d r a w n a t E e f f . At u n i t p e n e t r a b i l i t y , t h e c r o s s - s e c t i o n A(E) b e c o m e s c o n s t a n t a n d e q u a l s cr0, w h i c h H u g h e s ' m e a s u r e m e n t s h a v e s h o w n t o be r o u g h l y p r o p o r t i o n a l to t h e s u r f a c e of t h e n u c l e u s . T h e c r o s s - s e c t i o n CT(E) c a n t h e n b e w r i t t e n CR(E) = a P ( E ) A 2 / 3 , w h e r e A i s t h e m a s s n u m b e r a n d a i s a c o n s t a n t . T h e s p e c t r u m - a v e r a g e d c r o s s - s e c t i o n c a n t h e n be w r i t t e n :
3 = J CT(E) X(E) d E = a A 2 / 3 J P ( E ) X (E ) d E
0 0 <JO
= a A 2 / 3 J x ( f i ) d E Eeff
T h e q u a n t i t y a / A 2 / 3 i s p r o p o r t i o n a l t o the i n t e g r a l of t h e f i s s i o n n e u t r o n s p e c t r u m f r o m E eff t o inf in i ty ' , a n d i t i s t h e n p o s s i b l e to p r e d i c t a n a v e r a g e c r o s s - s e c t i o n if t h e e f f e c t i v e e n e r g y of a g i v e n r e a c t i o n i s k n o w n . T h e
FIG.2. I n , p ) cross-sections averaged in a fission neutron spectrum.
278 CAL AM AND
E.ti I MeV I
FIG.3. ( n , a ) cross-sections averaged in a fission neutron spectrum.
v a l i d i t y of t h i s v e r y s i m p l e m o d e l w a s t e s t e d by H u g h e s ' old m e a s u r e m e n t s . L a t e r on, l a r g e d i s c r e p a n c i e s wi th m o r e r e c e n t m e a s u r e m e n t s h a v e shown the i n a d e q u a c y of H u g h e s ' m o d e l t o p r e d i c t a v e r a g e c r o s s - s e c t i o n s .
R a t h e r t h a n t r y i n g to r e f i n e the p r e v i o u s t h e o r y , R o y a n d Hawton ( R e f . R 0 6 0 ) h a v e l o o k e d f o r an e m p i r i c a l c o r r e l a t i o n b e t w e e n 5 and E e f f . F o r e a c h m e a s u r e m e n t , t h e y h a v e p l o t t e d t h e q u a n t i t y ä • 25/ A2^3 v e r s u s Eeff (Eeff b e i n g o b t a i n e d f r o m H u g h e s ' p l o t s (Ref . HU53, F i g . 4 - 3 ) ) . T h e n u m b e r 25 m e a n s t h a t the c r o s s - s e c t i o n s have b e e n r e n o r m a l i z e d a r b i t r a r i l y to a n u c l e u s of m a s s A = 12 5, f o r wh ich A 2 ' 3 = 2 5. T h e (n, 2n) c r o s s - s e c t i o n s h a v e b e e n p l o t t e d v e r s u s the t h r e s h o l d e n e r g y E T . F r o m the l i ne g iv ing the b e s t f i t of t he e x p e r i m e n t a l p o i n t s , R o y and Hawton h a v e then t a b u l a t e d the e s t i m a t e d c r o s s - s e c t i o n s . T h e l i n e s f i t t e d by R o y and Hawton h a v e a s t e e p e r s l o p e than the o n e s g i v e n by the i n t e g r a l of t h e f i s s i o n n e u t r o n s p e c t r u m f r o m
FISSION NEUTRON AVERAGED CROSS-SECTIONS 279
E, ( MeV I
FIG.4 . ( n , 2 n ) cross-sections averaged in a fission neutron spectrum.
H u g h e s ' m o d e l . M o r e o v e r , f o r (n, p) c r o s s - s e c t i o n s , the d a t a s p l i t a l o n g two p a r a l l e l l i n e s , t he o d d - A n u c l e i h a v i n g m u c h l o w e r c r o s s - s e c t i o n s t h a n the e v e n - A n u c l i d e s .
T h i s c o m p i l a t i o n a s s u m e s the a p p r o a c h b y R o y a n d Hawton to the m e a s u r e -m e n t s p r e s e n t l y a v a i l a b l e . A l l r e c o m m e n d e d v a l u e s of T a b l e s II, III a n d IV h a v e b e e n u s e d f o r the f i t , e x c e p t f o r t h e d a t a m a r k e d wi th +. R e l a t i v e e r r o r s on d a t a f r o m a s i n g l e m e a s u r e m e n t o r on da t a a v e r a g e d o v e r two m e a s u r e -m e n t s h a v e b e e n i n c r e a s e d a r b i t r a r i l y up to 20% w h e n e v e r t h e y w e r e l o w e r t h a n t h i s v a l u e . T h i s w a s done in o r d e r to g ive l o w e r w e i g h t to t h e u n s u p p o r t e d m e a s u r e m e n t s . T h e 20% a r b i t r a r y e r r o r s a p p e a r in F i g s 2, 3 and 4 a s do t t ed e r r o r b a r s .
T h r e s h o l d e n e r g i e s ET have a l s o b e e n r e c a l c u l a t e d u s i n g the l a t e s t Q - v a l u e e v a l u a t i o n (Ref . GV72); f o r e x o e r g i c r e a c t i o n s E T = - Q , f o r e n d o e r g i c r e a c t i o n s E T = -Q(A+1) /A, w h e r e A i s t he m a s s n u m b e r of t h e t a r g e t n u c l i d e . S e v e r a l t h r e s h o l d v a l u e s , f o r wh ich Q w a s no t e v a l u a t e d , h a v e b e e n t a k e n f r o m R e f . HW70. T h e s e c h a n g e s in the t h r e s h o l d v a l u e s r e s u l t e d in c o r r e c t e d e f f e c t i v e e n e r g i e s .
F i g u r e s 2, 3 and 4 s h o w t h e r e s u l t s . T h e s h a d e d a r e a s d e f i n e a 67% c o n f i d e n c e i n t e r v a l . It c a n be s e e n t h a t o u r b e s t f i t s h a v e c o n s i s t e n t l y g r e a t e r s l o p e s t h a n the o n e s of R o y and H a w t o n . E x c e p t f o r (n, p) c r o s s - s e c t i o n s of o d d - A n u c l e i , t he d i s p e r s i o n of w h i c h i s l a r g e a n y w a y , o u r f i t i s not v e r y m u c h d i f f e r e n t f r o m t h a t of R o y and Hawton .
280 CAL AM AND
T a b l e of e s t i m a t e d v a l u e s (Tab .VI )
T h e f i s s i o n n e u t r o n s p e c t r u m a v e r a g e d c r o s s - s e c t i o n s a r e e s t i m a t e d f r o m the s o l i d l i n e s in F i g s 2, 3 and 4, g iv ing the b e s t f i t s to the e x p e r i m e n t a l d a t a , and a r e c o m p i l e d in T a b l e VI, t o g e t h e r wi th t h e i r e s t i m a t e d r e l a t i v e e r r o r s (one s t a n d a r d d e v i a t i o n ) . F o r t h o s e r e a c t i o n s w h e r e G i s l e s s t h a n 0 . 1 /üb, ä i s s i m p l y g iven a s < 0. 0001 m b . No v a l u e i s g iven f o r the f ew r e a c t i o n s f o r w h i c h E eff i s l e s s than 2 MeV, the v a l i d i t y of the e s t i m a t i o n b e i n g d o u b t f u l in t h i s c a s e . T h e r e c o m m e n d e d v a l u e s of CT given in T a b l e s II, III and IV shou ld of c o u r s e be p r e f e r r e d to the e s t i m a t e d o n e s .
T h e a u t h o r w i s h e s t o t h a n k C . L . D u n f o r d a n d J . J . S c h m i d t f o r t h e i r c r i t i c a l r e v i e w of the m a n u s c r i p t .
T A B L E I. A D O P T E D STANDARDS
A C K N O W L E D G E M E N T S
Reactions o ± Ao (mb)
46
2 4Mg(n, p) 2 4Na
27 Al(n, a ) 2 4 N a
32 S (n ,p ) 3 2 P
4 6 Ti (n , p)4 6 Sc
M Fe(n , p ^ M n
œ Ni(n , p) M Co
a U ( l l , f ) F P
" ^ ( n , f)F P
24
58.
54
32 32
82.5 ± 5
69 è 4
1 .53 ± 0.09
0.725 i 0.045
328 ± 10
12.5 ± 0 . 9
113 è 7
1250 ± 70
FISSION NEUTRON AVERAGED CROSS-SECTIONS 281
E x p l a n a t i o n of s y m b o l s u s e d in T a b l e s II, III, IV a n d V
( )* T h e r e a c t i o n h a s b e e n u s e d a s s t a n d a r d wi th the n u m e r i c a l v a l u e g i v e n in p a r e n t h e s e s .
(±0. 05) T h e e r r o r g i v e n in p a r e n t h e s e s h a s b e e n a r b i t r a r i l y c h o s e n .
M a r k s the d a t a s e l e c t e d f o r u s e in t h e a v e r a g i n g p r o c e s s .
} C o l l e c t s r e n o r m a l i z e d v a l u e s in a n a v e r a g e d r e c o m m e n d e d v a l u e .
+ M a r k s the d a t a not a c c e p t e d f o r the f i t of the e s t i m a t e d v a l u e s .
1. 53±0. 09 U n d e r l i n e d d a t a a r e s t r o n g l y r e c o m m e n d e d .
F A 7 2 R e f e r s to F a b r y ' s r e c o m m e n d e d v a l u e s ( r e p o r t e d in t he " o r i g i n a l v a l u e s " c o l u m n of t he t a b l e s ) .
T h e b o x e s d r a w n wi th in t he t a b l e s f o r s o m e r e a c t i o n s i n c l u d e t he o r i g i n a l d a t a and t h e i r r e n o r m a l i z e d v a l u e s u s e d by F a b r y (FA72) in h i s e v a l u a t i o n .
S e p a r a t e s w i th in t h e box the m e a s u r e m e n t s p e r f o r m e d wi th f i s s i o n p l a t e s o r c o n v e r t e r ( u p p e r p a r t ) f r o m t h e o n e s done b y e x p o s u r e t o p i l e n e u t r o n s ( l o w e r p a r t ) .
(1), (2). . . (29) R e f e r to N o t e s to T a b l e s I I - V , a l i s t of w h i c h f o l l o w s T a b l e V.
282 CAL AM AND
T A B L E II . I N T E G R A L (n ,p ) CR OSS-SECTIONS A V E R A G E D IN T H E U R A N I U M - 2 3 5 T H E R M A L FISSION N E U T R O N S P E C T R U M
React ions
Refe
ren
ces
O r ig ina l va lues
¡Fi û(f (mb)
Standa rds 3
(mb)
Renormalized value s
CT± A<F (,"b)
Recommended values
(mlj)
" ( ¡ ( n . p ) ! 6 ! , HU53
RÏ58
HE58
0.014
0.019+23$
(1 .85+p . l l ) 10~ 2
(1) 2 7Al(n,o<)-0.6+20$
(2)
0.022
O.O23+O.OO3 -
0.018+0.0011 -
|o.019+0.001 +
I V o t n . p ) 1 ^ RT58
HE58
AM64
O.OO52+305S
(9.3+O.9) 10-3
(7.4+0.6)10-3
2fAl(n,oO=0.6+20?&
(2) 2^Al(n,o< )»0.6
O.OO63+O.OOI3 -
O.OO93+O.OOO9 -
O.OO89+O.OOO9 -
O.OO86+O.OOO8+
^ ( n . p j ^ o HH53
SA59
0.5
O.99
(1)
31p(n ,p) .19
0 . 8
1.9 j l . 35+0 .8
23Na(n,p) 23ne HU53
SA 59
0 .7
1 .0
(1)
31p(n, p) -19
1 . 1
1.9 J l . 5+0 .6
^ ( n . p ^ H a HU53
HA62
1 .0
1.05+0.25
(1 )
unknown
1.6
I.53+O.O9
^ ( n . p ^ H a
B064
BR67.70
NJ70
KI71
PA72
RI57
PA61
HD62
NS68
KI71
»072
PA72
1.31+0.06
1.44+0.05
1.31+0.05
(1 .4)*
1.62+0.07
1.29
1 . 2
1 . 1
I.3O+O.I7
(1.4)»
(6)
32s(n,p)-60
(3) 2 7 A l ( n , « ) - 0 .61
(4)
235u(„,f).1335 (7)
2 3V(n , f" ) -304
2 7Al(n ,o<)-0 .60
2 7Al(n ,«*) -0 .57
(5)
(4)
I .53+0.07
1.53+0.053
I.58+O.O6
1.56
1.52+0.045
1.53
1.51
1.41
I.53+O.2O
I.56
I.5I+O.I2
I.53+O.O9
^ ( n . p ^ H a
B064
BR67.70
NJ70
KI71
PA72
RI57
PA61
HD62
NS68
KI71
»072
PA72 1.53+0.03 2 35u(n , f ) . 1250 I.53+O.O9 I.53+O.O9
^ ( n . p ^ H a
2 35u(n , f ) . 1250 I.53+O.O9
a N u m b e r s in p a r e n t h e s e s r e f e r to n o t e s , a l i s t of which fo l l ows T a b l e V.
FISSION NEUTRON AVERAGED CROSS-SECTION S 283
T A B L E II (cont. )
React ions
Refe
ren
ces
O r ig ina l va lues CT + A a ( m b )
Standards
(mb)
Renormalized va lues
cf + (mb)
Recommended va lues
CT i (mb)
25Mg(n,p)25Na HU53 2 .0 (1) 3 . 2 3 .2 (+1 .6 ) +
2TAl(n,p)27Mg HU53 2 .8 (1) 4 .5
BO64 2.9+O.5 32 S (n ,p ) -60 3.4+0.6
GR68 (8) 4.7+0-3
NJ70 2.9+O.3 27A1 (n,o< )=0.6l 3.5+O.35
PA72 4.35+0.20 235a (n , f ) . 1335 (7) 4.07+0.15
RI57 3.43 2 '5 i iÛ(n,f)=304 4 .01
MD72 (6) 4.17+0.33
FA72 4.0 +0.4 f 2350(n,f)=1250 4.O+O.45 4.O+O.45
FH64 3.40+0.38 unknown
28 S i ( n ,p )28 A l » 5 3 4 (1) 6.4
BU70 6.68+0.08 3 2 s (n ,p )=65 7.1+0.4 ) 6 .4+0.8
KI71 4.90+0.32 (4) 5.4+O.5 J
^ S i t n . p ^ A l HU53 2.7 CD 4 .3
HS68 2.40+0.18 (5) 2.8+0.3 "1 3.3+O.2
BU70 3.4I+O.O4 3 2S(n,p)=65 3.6+0.2
KI71 2.98+0.17 (4) 3 .3+0.3
31p(n ,p )31 S i HU53 19 (1) 30
HB 60 (23) 32S(n,p)-69+4 35+3
BO64 30.5+1.2 3 2 S(n,p)=60 35.5+1.4
GR 68 (8) 38.6+2.5
RI57 31.2 238ü(n ( f )=304 36.5
FA72 36+2 2 35u(n , f ) -1250 36+3 36+3
284 CALAMAND
T A B L E III (cont. )
Reac t ions Q © O c O r i g i n a l v a l u e s Standards Renormalized Recommended 2 v a l u e s v a l u e s £ o K
5 - ± A S (mb) (mb) CT 1 (mb) CT+ && (mb)
32s (n ,p )32p HU53 30 (1 ) 48
SA 59 21 31p(n ,p ) -19 40
1XJ62 5&+15* 2 3 8 u ( n , f ) - 3 1 0 61+9
EE62 65±3 ( 9 )
PH 64 61+5 unknown
LW66,68 41 5 4 p e ( n , p ) . 6 0 56
BO64 (60)*+1.2 3 2 s ( n , p ) - 6 0 70+I .4
FA72 73+3 2 3 5 u ( „ , f ) . 1 3 3 5 (? ) 68.5+2
RI57 6O.3 2 3®D(n , f ) .304 71 .2
PA61 58 (16) 2 7Al(n ,o< . ) -0 .6 73+7
HA64/1 65 (17) 32 S (B i P )=65 68 .5
M372 (6) 70 .5+5 .6
FA72 69+2 2 3 5 u ( n , f ) - 1 2 5 0 69+4 69+4
3 3 S ( n , p ) 3 3 p KO66/2 376+20 3 2 S(n ,p )«66 383+31
LW66,68 55 54pe (n ,p ) -60 76 76(115) +
3 4 S ( n , p ) 3 4 p RA 6 7 / I 0 .36+0.032 5 % i (n ,p )»95 O.43+O.O5 _ O.43+O.O5
3 5 c i ( n , p ) 3 5 s HU53 16 (1) 26
GI66 -810+40 unknown
RA67/1 78.3 ( o a l o . ) (24) ' - 78 (+23) +
3 7 o i ( n , p ) 3 7 s H053 0 . 2 4 (1) 0 . 3 8 0 . 3 8 ( 1 0 . 1 9 ) +
4 l K ( n i p ) 4 1 A r U 6 5 2.73+O.4I unknown
RA67/1 I .78+O.I4 5®Ni(n,p)=95 2 .1+0 .2 - 2 .1+0.2
FISSION NEUTRON AVERAGED CROSS-SECTION S 285
T A B L E II (cont. )
Reac t ions a © o fi O r i g i n a l v a l u e s Standards Renormalized Recommended © h v a l u e s v a l u e s
O OS
ff± A S (mb) (mb) <f + ACT (mb) S" + L S (mb)
« C a ( n , p ) 4 3 K GI66 0 . 3 unknown 0 . 3 ( + 0 . 1 5 ) +
45so (n ,p )45ca MU61 9+1 3 2 s ( n , p ) - 6 6 9 -4+1 .2 } E068/2 34 .6+0 .5 3 2 S ( n , p > 6 0 39 .8+2 .4
V15+12 +
4 % ( n , p ) 4 6 s o ME58 4 . 1 3 2 S ( n , p ) - 3 0 9 . 4
B062 10+155S 2 3 8 u ( n , f )"310 10.6+1.6
UL63 15+2 58Ri(n,p)=101 17+2
KI63 17+3 58 l f i ( n ,p ) -92 21+4
ZJ 12 .8 2ÎAl(n^>0»O.6o8 15+3
KD66/1 12 .6+0.4 32s(n ,p )=66 13.2+0.9
DS67 8 .6+1 .4 unknown
BO64 12 .8+0 .6 3 2 S(n ,p)=60 15
BR67.70 11 .6+0 .5 (3) I2 .3+O.5
KI71 10.8+0.61 (4) 12 .0+0.7
PA72 13 .0+0 .6 2 35u(n , f )=1335 (7) 12 .2+0.4
H062 9 . 0 2 ^Al(n /S)=0 .57 11 .4
B064 8.O+O.6 58Ni (n ,p ) -90 9 . 3
MA 64/2 8 . + 0 . 8 SSNifn.pJ-lOT 8 .45+0.85
RA67/1 (12 .6 )» 4 6 T i ( n , p ) - 1 2 . 6 12 .3
N368 9 .30+0.73 (5) IO.9+O.9
SC69 IO.9+O.7 27Al(n,oO-0.767 10 .6+0.7
KI71 11 .2+0 .63 (4) 12.5+Oi7
MC72 (6 ) 13.0+1
PA72 12.5+O.5 2 3 5 u ( n , f ) - 1 2 5 0 12.5+0.9 12.5+0.9
286 CAL AMA ND
T A B L E II (cont. )
React ions
Ref
eren
ces
O r ig ina l va lues
5 i £¡5- (™b)
Standards
(mb)
Renormalized va lues ä + k ö 1 (mb)
Recommended value s
CT" + A^(mb)
4 7 T Í ( „ , p ) 4 7 S c ME58 0 . 2 1 32s(n,p)=30 0.48
BU62 I8+I59Í 238u(n,f)=310 19+3
NI63 18+3 58Ni(n,p)=92 22+4
K066/1 13.2+1 32s(n,p)=66 13-8+1.3
ES67 18.2+2.6 unknown
BO64 22+I.5 32s(n,p)=60 25.6+I.7
KI71 17.3iP.90 (4) 19-3+1
HO62 15 27Al(npí ) .0 .57 I 9 . 2
NS68 26+3.I (5) 3O.5+3.6
so 69 I9.8+I.2 27Al(n,oO-0.767 I9.2+I.I
KI71 I9 .O+I.2 (4) 21.2+1.3
,FA72 20+2 235a(n , f ) .1250 20+2.3 20+2.3
48Ti(n Ip)48Sc ME58 0.077 32s(n,p)=30 0 .18
BU62 0.53+15$ 2 3 8 u ( n , f ) - 3 1 0 O.56+O.O9
NI63 0.44+0.08 5%i (n ,p )=92 O.54+O.IO
KO66/I 3 .3+0.2 32s(n,p)-66 3.45+O.3
DS67 0.11+0.01 unknown
BO64 0.21+0.016 32S(n,p)=60 0.245+0.002
KI71 O.272+O.O52 (4) O.3O3+O.O58
H062 O.25 27Al(n,oO=0.57 0 .32
NS68 O.24O+O.O54 (5) O.282+O.O63
so 69 0.334+0.02 27Al(n,<*)=0.767 0.324+0.02
KI71 O.294+O.O25 (4) 0.328+0.028
FA72 O.3I5+O.O2 1 235u(n,f)=1250 O.3I5+O.O27 - 0 . 3 1 5 * 0 . 0 2 7
51v(n ,p)5 lTi NS68 O.74+O.O8 (5) 0.87+0.11 0.87+p.ll
52cr(n ,p)52v RA67/1 O.92+O.O37 58Ni(n,p)-95 I.O9+O.O8 1.0940.08
FISSION NEUTRON AVERAGED CROSS-SECTION S 663
T A B L E II (cont. )
Réact ions
a © o Or ig ina l va lues Standards Renormaliaed Recommended i (mb) value s va lues
o CS
G i ACT (mb) <f + && i»11) Ö-+ t ë (mb)
53cr(n ,p)53v RA67/1 0.37+0.026 5®Ni(n,p)"95 0.44+0.04 O.44+O.O4
54cr(n ,p)54 V RA67/1 (4 .9+0.8)10-3 58Ni(n,p)=95 (5 .8+1.0)10-3 O.OO58+O.OOI
54pe(n,p)54Mn S057 15 (10) 46
ME58 23 3 2 S(n ,p ) -30 53
RC59 56 2?Al(n,oO"0.6 68
DU62 59+15$ 23&u(n ff)«310 62+10
M68 59.8+14$ unknown
ST70 63+1 58lli (n ,p) -105 68+4
B064 6é¿3.5 32s (n ,p ) -60 77+4
BR67.70 76.5+3.0 (3) 81.5+3.2
PA72 89+5 2 3 5 u ( n , f ) - 1 3 3 5 (7) 83.5+2.5
PA61 54 27Al(n,oO=0.60 73
H062 65 27Al(n,c<)=0.57 83
HA64/3 7ɱ3 58»i (n ,p) -107 83.3+ 3 .3
KS 68 67+9 (5) 84.7+10.5
MD72 (6) 81.5+4.5
FA72 82.5+2 2 35u(n , f ) -1250 82.5+5 8 2 . ^
S ^ e f n . p ) ^ ME58 0 .44 3 2 S(n t p)=30 1 .0
(see a l s o next DU62 1.2+1555 23>8U(n,f)-310 1.3+0.2
Page) BO64 0.90+0.05 3 2 S(n ,p ) .60 1.05+0.06
GR68 (a) (8) 1.07+0.07
BR67.7C I.O6+O.O4 (3) 1.13+0.043
HJ70 O.85+O.O5 2 7 A l ( n ^ ) = 0 . 6 l 1.025+0.06
PA72 I.I5+O.O4 2 35u(n , f ) -1335 (7) 1.08+0.035
288 CALAMAND
T A B L E III (cont. )
React ions ID 9 O ß O r i g i n a l va lue s Standards Renormalized Recommended « h va lues va lue s <D O « CT ± ^ (mb) (mb) d~î. A â (mb) 5 ¿iff (">•>)
5%e(n,p)56Ifa PA61 0 .82 2 7Al(n,o<)-0.60 1 .03
( c o n t ' d ) H062 O.7I 2 7Al(n^<) .0 .57 0 .91
NS68 O.96+O.O9 (5) 1.13+0.11
HS72 (6) I.29+O.IO
PA72 I.O7+O.O6 235o(n,f)-1250 1.07+0.08 1.07+0.08
59co(n,p)59pe SC57 O.25 (10) 0 .77
ME58 5-7 32s(n,p)-30 13
SO 59 - 0 . 3 27Al(n,t>i).0.6
DO62 1.4+15$ 23®ü(n,f)«310 I .5+O.2
WA63 0 . 5 unknown •I .42+O.I4
M68 1.46+23$ unknown •I .42+O.I4
NS68 I . I 5 + O . I 5 (5) 1 .35+0.2
SSuiCn.p^o ME58 45 3 2 S ( n , p ) - 3 0 103.5
(see a l s o next RB59 225 32s(n,p)-30 517.5 page)
RC59 140 2 ?Al(n ,oO-0 .60 169
DU62 97+15$ 2 3®u(n , f ) -310 103+16
ZJ63 120 2 7Al(n,<x)-0.608 143
BA68 75.7+12$ unknown
BO64 IO5+5 3 2 S ( n , p ) - 6 0 122.5+6
ER67.70 104.5+4.0 (3) 113.3+4.3
KI71 (104)* (4) 116
PA72 120+6 2 3 5 u ( n t f ) - 1 3 3 5 (7) I I 2 . 5 + 3 . 5
PA51 92 27Al(n,o<).0.60 I I 5 . 5
HO62 90 2 7a1 (n |O<)"0 . 57 115
MA64/I 107 (17) 3 2 s ( n , p ) - 6 5 113
RA67/1 (95)* 58ni(n,p)-95 111
FISSION NEUTRON AVERAGED CROSS-SECTION S 289
T A B L E II (cont. )
R e a c t i o n s O ® o O r i g i n a l v a l u e s S tandards Renormalized Recommended o v a l u e s va lue s © «M £
g-± (mb) (mb) er ± AS1 (mb) AcF(mb)
5®Ni(n,p)5®Co NS68 96+13 (5) 113+15
( c o n t ' d ) sc 69 114+7 27A1 (n fd)=0.767 IIO.5+7
KT71 (104)» (4) 116
M072 (6) IIO+5.7
FA72 II3+2.5 235u (n , f )o l250 113+7 I I3+7
5 % i ( n , p)5&"co ME58 13 3 2 S ( n , p ) - 3 0 30
BO64 30+7 3 2 S(n ,p )=60 35+8
BR67.70 33 .7+1 .1 (3) 35 .8+1 .2
FA72 37.5+5 235u(n , f )=1335 ( 7 ) 35 .1+1 .1
PA61 28 27 A l (n f oi )=0.60 35
H062 3 0 . 5 2 7 Al(n / o( )»0 .57 39
FA72 35.4+I.O [ 2 3 5 u ( n , f ) = 1 2 5 0 35 .4+2 .2 35 .4+2 .2
fiOuKn.pjfiOco RB59 < 4 . 5 3 2 S(n ,p )=30
SC57 O.56 (10) 1 .72
ME58 3-7 3 2 s ( n , p M 0
R059 < 2 27Al(n,oO=0.60
D062 3.2+15$ 2 3 8 0 ( n , f ) - 3 1 0 3.4+O.5 j
H062 < 0 . 5 2 7 A l ( n ^ ) = 0 . 5 7 L2.3+0.4
< 0 . 5 2 7 A l ( n ^ ) = 0 . 5 7 L2.3+0.4
NS68 I.69+O.18 (5) 2 .0+0 .2
HA72 4.4+I.O 5®Ni(n,p )=105 4 -7+1 .1 J
60ïi(n>p)6a%o BA72 I.98+0.20 S^ i t n.pJ . l O S 2 .1+0 .3 2.1+0.3
6 1 N i ( n , p ) 6 1 C o sc 69 1 . 3 + 0 . 1 2 ÎAl(n ,oO=0.767 I.23+O.I2 1
HA72 1 .63+0.12 S ^ i f r . p J o l O S I . 75+O. I7 V I . 4 + 0 . 2
290 CALAMAND
T A B L E III (cont. )
R e a c t i o n s m u o O r i g i n a l v a l u e s S t a n d a r d s Renormal ized Recommended l. v a l u e s v a l u e s ®
In O
OS 5- ± A S (mb) (mb) A w (mb) CT" + A f f ( m b )
6 2 N i ( n , p ) 6 2 c o HA72 (9+3)10-3 58 ) j i (n ,p )=105 ( 9 . 7 + 3 . 4 ) 1 0 - 3 O.OO97+O.OO34
6 5 c u ( n , p ) 6 5 N i FA61 0 . 3 6 A l (n ,<* ) .0 .6 0.435(+10%) -^ 0 . 4 8 + 0 . 0 8 NS68 O.52+O.O5 ( 5 ) 0.61+0.07 ^ 0 . 4 8 + 0 . 0 8
6 4zn (n,p ) 6 4cu ME58 22 3 2 S ( n , p ) = 3 0 51
R059 35 2 7 A l ( n f * ) « 0 . 6 0 42
Dö62 31+15* 2 3 8 u ( n , f ) » 3 1 0 33+5
BO64 27+1.6 32s(n,p)=60 3I.5+I.9 NJ70 25 .2+1 .3 27Al(n(O<)-0.6l 3 0 . 4 + 1 . 6
KI71 3 7 . 4 Í 3 - 0 (4) 4 1 . 7 + 3 . 3
FA72 3 2 + I . 7 2 3 5 ü ( n , f ) - 1 3 3 5 (7) 30+1.2
PA61 28 27a1 (n (oO'O • 60 35
H062 25 2 7Al(n,o<).0.57 32
RA67/1 2 6 . 9 + 1 . 2 58Ni(n,p)=95 3I.4+I.3 NS68 27.O+4.I (5) 3 1 . 7 + 4 . 8
sc 69 32+2 2 7 A l ( n „ * ) - 0 . 7 6 7 31+2
KI71 3 5 . 5 + 2 . 8 (4 ) 3 9 . 6 + 3 . 1
FA72 3 I + I . 5 2 3 5 o ( n , f ) c l 250 31+2.3 31+2.3
6 6 Z n ( n , p ) 6 6 C u RA67/1 0.56+0.034 58Ni(n,p).95 0 .67+0 .06 1 NS68 0 . 3 2 + 0 . 1 1 (5 ) O.38+O.I3 y 0.62+0.11
6 7 z n ( n , p ) 6 7 c u MB58 0 . 2 7 3 2 s ( n , p ) - 3 0 0 . 6 2
( see a l s o n e x t PA61 O.57 2 7Al (n ^ 0 = 0 . 6 0 0.69 p a g e ) EU62 O.88+I555 2 3 8 u ( n , f ) - 3 1 0 O.93+O.I4 1
B064 O.9+O.I 3 2 s ( n , p ) . 6 0 I.04+0.13 1 1 1
FISSION NEUTRON AVERAGED CROSS-SECTION S 291
T A B L E II (cont. )
R e a c t i o n s m v Ü S 0) U O
tH V «
O r i g i n a l v a l u e s
Î T + A c t ( " ï )
S t a n d a r d s
(mb)
Renormal ized v a l u e s
¿Y + A C T (mb)
Recommended v a l u e s <T+£>CT (mb)
6 ? Z n ( n , p ) 6 7 c u
(cont'd)
N I 6 5 / 2
R A 6 7 / 1
O B 6 9
H P 6 9
SC 6 9
0 . 8 8 + 0 . 1 1
O . 9 6 + O . O 6 7
0 . 8 2 + 0 . 0 4
0 . 8
l . l l + p . 0 8
5 8 N i ( n , p ) = 9 2
5 8 s i ( N , P M 5
5 4 F e ( n , p ) = 6 1
unknown
2 ^ A l ( n ^ 0 =0.767
I . O 8 + O . I 5
1 . 1 4 + 0 . 1 1
l . l l + p . 0 9
I .O5+O.IO
1 1 1
1 . 0 7 + 0 . 0 4
N I 6 5 / 2
R A 6 7 / 1
O B 6 9
H P 6 9
SC 6 9
0 . 8 8 + 0 . 1 1
O . 9 6 + O . O 6 7
0 . 8 2 + 0 . 0 4
0 . 8
l . l l + p . 0 8
5 8 N i ( n , p ) = 9 2
5 8 s i ( N , P M 5
5 4 F e ( n , p ) = 6 1
unknown
2 ^ A l ( n ^ 0 =0.767
I . O 8 + O . I 5
1 . 1 4 + 0 . 1 1
l . l l + p . 0 9
I .O5+O.IO
6 8 Z n ( n , p ) 6 8 C u R A 6 7 / 1 ( 1 3 . 1 + 1 . 9 ) 1 0 - 3 5 8 B i ( n , p ) - 9 5 O . O I 5 6 + O . O O 2 5 O . O I 5 6 + O . O O 2 5
690a(n,p)69®Zn H P 6 9 O . 4 9 6 + O . O 7 3 unknown - O . 4 9 6 + O . O 7 3 +
720e (n ,p )72Ga R C 5 9
R A 6 7 / 1
< 0 . 0 1
0 . 0 2 1 8
2 ? A l ( n , ^ ) = 0 . 6
( 2 1 ) - 0 . 0 2 2 ( + 0 . 0 0 6 ) +
^ A s i n . p ) ^ NS68 0 . 4 5 ( c a l .va l . ) (19) 0 . 4 5 ( + P . 1 5 ) +
™ S « ( n f p ) ™ A S G I 6 6 6 . 6 unknown 6 . 6 ( + 3 . 3 ) +
8 l B r ( n , p ) 8 l g S e S T 6 7 0 . 0 2 0 + 0 . 0 0 4 2 T Al(n ,o<)=0.6 0 . 0 2 4 + 0 . 0 0 5 0 . 0 2 4 + 0 . 0 0 5
8 l B r ( n , p ) 8 1 m S e S T 6 7 0 . 0 1 2 + 0 . 0 0 3 27Al(n,<X)=0.6 0 .0145+0 .004 0 . 0 1 4 5 + 0 . 0 0 4
8 8 S r (n ,p ) 8 8 H b SS68 0 . 0 1 ( c a l . va l . ) (19) 0 . 0 1 ( + 0 . 0 0 3 ) +
^ ( n . p ^ S r BA68 0 . 3 1 + 1 9 $ unknown 0 . 3 1 + 0 . 0 6 +
9 0 Z R ( N L P ) 9 0 R NS68 0 . 1 8 ( c a l . v a l . ) ( 1 9 ) 0 . 1 8 ( + 0 . 0 6 ) +
9 2 M o ( n , p ) 9 2 % b
( see a l s o n e x t
p a s e )
ME58
0 0 6 2
1 . 3
7 . 4 3 ± 1 0 %
3 2 S ( n , p ) - 3 0
S ^ L ^ p J - l O S
3
8 . 0 ± 0 . 9
292 CALAMAND
T A B L E III (cont . )
React ions
Ref
eren
ces
O r ig ina l va lues
C T + A c t ("A)
Standards
(mb)
Renormalized va lues 5 ± Act (mb)
Recommended value s
CT iACT(ml))
SZMotn.p iVb (cont. 'd)
7.0+0.6
SZMotn.p iVb (cont. 'd)
B064
BR67.70
KI71
FA72
H062
RA67/I
NS68 KI71
FA72
6.2+0.4
6.57+0.28 6.04+0.45
7.7+O.5
6 .0
6.74+0.27
6.7O+O.63 6.00+0.43
3 2 S ( n , p ) - 6 0
(3)
(4)
2 3 5 u ( n , f ) = i 3 3 5 (7) 27Al(n,c*)=0.57
4 6 T i ( n , p ) . 1 2 . 6
(5)
(4)
7.23+O.5 7.00+0.30 6.73+O.O5 7.2+0.3
7.65
6.58^0.26 7.87+0.74 6.70+0.47
7.0+0.6
SZMotn.p iVb (cont. 'd)
B064
BR67.70
KI71
FA72
H062
RA67/I
NS68 KI71
FA72 7.0+0.4 J 235u(n,f )=1250 7.O+O.6 7.0+0.6
SZMotn.p iVb (cont. 'd)
235u(n,f )=1250 7.O+O.6
95Mo(n,p)95mj ME58 0062
H062
B064
RA67/I
<0 .1
0.78±10%
<0.1
0.13+0.02
O.I38+O.OO6
3 2 S(n ,p ) -30
92Mo(n,p)= 7.43 27Al(n^X)=0.57
32S(n,p)=60 4 6 T i ( n i p ) . 1 2 . 6
0 .73±0.08
O.I5O+O.O2 -0.137+0.012 -
j 0.14+0.01
9 6 Mo(n ,p )9 6m i 0062 0.24±10% 92Mo(n,p)=7.43 0 .23±0.03 0 .23±0.03 +
1 03Rh(n,p) 1 03Ru PR67 O.O93+O.OOI 3 2S(n,p)=60 O.IO7+O.OO6 O.IO7+O.OO6
109Ag(n,p)109pd NS68 O.O6 ( ca l .va l . ) (19) 0.06(+O.O2) +
1 0 6 0 d ( n , p ) 1 0 6 A g ST67 2.7+0.2 27Al(n,ot)=0.6 3.3+O.3 3.3+0.3
1 1 0 C d ( n , p ) 1 1 0 A g RC59 rv/0.1 27Al(n^><)=0.6 0 .1(+0 .05) +
l ^ K n . p ) 1 2 ^ R068/1 (11.1+0.2)10-3 3 2 S(n ,p)=60 (12.8+0.8)10^ 0.0128+0.0008
FISSION NEUTRON AVERAGED CROSS-SECTION S 293
T A B L E II (cont. )
Reac t ions
Refe
ren
ces
O r i g i n a l va lue £
c r + ACT (MB)
Standards
(mb)
Renormalized va lue s
Recommended va lue s
O + A ö ^ m b )
^ K n . p ^ g r e RG68/1 (7 .62+0.11)10"3 3 2 S(n,p)=60 (8 .8+0 .5 )10-3 O . O O 8 8 + O . O O O 5
^ M n . p ) « ^ RB59 5-3 3 2 S(n,p)=30 12 12(+6) +
« ^ ( n . p ) » « ^ RB59 0 . 0 0 1 5 . 3 2 S(n,p)=30 0 .0035
+ 0 .0035(+0 .001^
140 C e (n ,p )14°La DS68 3 . 5 + O . 9 58jji (n ,2n )=0.004 4 . 3 + I . 6 4 . 3 + 1 . 6 +
i H p r C n . p ) 1 ^ OB67 0 .12 unknown 0 . 1 2 ( + 0 . 0 6 ) +
l 8 2 W ( n , p ) l 8 2 T a RV67 ( 3 . 8 + 0 . 6 ) l 0 - 3 (11) (4 .0+0 .7 )10-3 O . O O 4 + O . O O O 7
^ „ ( n . p ) ^ RV67 ( 2 . 8 + 0 . 5 ) 1 0 - 3 ( U ) (3 .0+0 .6 )10-3 0.003+0.0006
^ T l t n . p ^ H g ME58 0.004 3 2 S(n,p)=30 O . O O 9 O.OO9(+0.004)+
294 CAL AM AND
T A B L E III. I N T E G R A L (n, a) CR O S S - S E C T I O N S A V E R A G E D IN T H E U R A N I U M - 2 3 5 T H E R M A L FISSION N E U T R O N S P E C T R U M
Reac t ions
Ref
eren
ces
O r i g i n a l v a l u e s
< r ± A<f ( m l )
S tandards a
(mb)
Renormalized va lue s f i i î (mb)
Recommended v a l u e s ff± ^ y ( m b )
' B e f r ^ e HU53 10 (1) 16
G N 6 8 3 8 . 2 + 3 . 8 (15) - 3 2 . 8 + 3 . 8
U B(n,o<) 8 Li HU53 0 . 0 8 5 (1 ) 0 .14 0 .14 (+0 .07) +
HU53
SA 59
4 . 5 4 . 5
(1) 3 1 P ( n , p ) » 1 9
7 . 2
8 . 5 ^ 7 . 8 5 + 0 . 9
2 3 N a ( n , * ) 2 0 F HU53
SA 5 9
0 . 4
0 .47
(1) 3 1 P ( n , p ) - 1 9
0 .64
0 . 8 9
^ 0 . 7 6 5 + 0 . 1 7
2 ? A l ( n p < ) 2 ^ a HU53 0 . 6 (1) O . 9 6
(Bee a l s o next page)
SA 5 9
ME60
DE62
0 . 4 4
0 . 4 8
0 . 6 3 + 0 . 0 3
3 1 P ( n , p ) - 1 9
3 2 S ( n , p ) - 6 0
(9)
0 .83
0 . 5 5
DU62 0.85+1555 2 3 8 U ( n , f ) - 3 1 0 0 . 9 0 + 0 . 1 4
PH 64 0 .62+0.03 unknown
B O 6 4 0.60+0.03 3 2 S ( n , p ) - 6 0 0 . 7 0 + 0 . 0 3 5
G R 6 8 ( 8 ) 0.75+0.0045
BR67.70 0 . 6 9 5 + 0 . 0 2 (3 ) 0 .74+0.02
NJ70 (0 .61 )» 2 7Al(n ,o i )=0.6 l 0 .735
KI71 (0 .63 )* U ) 0 . 7 0
PA72 0 . 7 8 + 0 . 0 3 2 3 5 u ( n , f ) . 1 3 3 5 (7) 0.73+0.02
RI57 0 . 6 0 2 3 8 U ( n , f ) - 3 0 4 0 . 7 1
PA61 ( 0 . 6 0 ) * 27Al(n,o<)-0.60 0 .755
H062 ( 0 . 5 7 ) * 2 7 A l ( n ^ ) - 5 7 0 .73
RA67/1 0 .61+0.028 5 8 H i ( n , p ) - 9 5 0.71+Ó.03
RS68 0 . 5 8 + 0 . 0 7 (5) 0 . 6 8 + 0 . 0 8
a N u m b e r s in p a r e n t h e s e s r e f e r t o . n o t e s , a l i s t of wh ich f o l l o w s T a b l e V .
FISSION NEUTRON AVERAGED CROSS-SECTION S 295
T A B L E II (cont. )
Reac t ions <a a o O r i g i n a l v a l u e s Standards Renormalized Recommended
£ value s va lue s
<H & ff+AÔ- (mb) (mi>) AÔ-(mb) Ô= + AÔ^mb)
SO 69 (0 .767)* 27AI ( n ^ ) = 7 6 7 O.744+O.O45
(cont *d) KI71 ' ( 0 . 6 3 ) * (4) O.7O
MC72 (6) O.73+O.OI5
FA72 0.725+0.02 235u(n , f )=1250 O.725+O.O45 - 0 .725+0.045
NI6 4 0 .15+0.02 2 ^Al(n ,p)=3«43 O.I75+O.O3 1
KI71 0 . i30+p;020 (4) O.I44+O.O23 -f O.I55+O.O2
3 1 P ( n , « ) 2 8 A l HÜ53 1 .43 ( D 2.29 1
SA 59 0 . 7 5 S i p f a . p ) ^ 1 .44 i 1 .9+0 .6
34S(n,o<)31Si MU53 3 .0 ( D 4 . 8
SA 59 1 . 2 3 1 P(n,p)=19 2 . 3
BL65 2.23 ( c a l c . ) (18) - 2 . 2 ( + 0 . 2 )
35C l(n,o<)32P HU53 3 . 0 ( D 4 . 8
SA 59 4 . 1 3 1 P(n ,p)=19 7 . 8
IW59 15 unknown • 8 . 8 + 4 . 6
HI65/I 12 .4 3 2 S ( n , p ) . 6 2 13 .8
LW66.68 32 54pe(n,p)=60 44
3 6 Cl(n ,o033p LW66.68 52 54p e (n ,p )c60 . 72 72(+36) +
39K(n,o03 6 cl HS68 8 . 0 ( c a l c . ) (19) 8 . 0 ( + 0 . 3 ) +
4lK(n,cv)38ci RA67/I 0 .61+0.032 5 8 Ni(n ,p )=95 Ó.73+0.06
JO68 0 .68+0.05 2^A1 (n,o<)=0.6 0 .82+0.08 V 0 .76+0.05
296 CALAMAND
T A B L E III (cont. )
Reac t ions
Refe
ren
ces
O r i g i n a l v a l u e s
S 1 (mb)
S tandards
(mb)
Renormalized
v a l u e s
ô - ± ACT ("it)
Recommended v a l u e s
<f + £¿r (mb)
4Oc a (n ,o0 4 2 K 0166 13 .2 unknown 13(±6) +
4 4 C a ( n , o 0 4 1 A r LA65 (61 .1+9.2)10-3 unknown O.O6II+O.OO92+
45Sc(n,fl042K RC59
RO68/2
<5
0.158+0.004
2?A1 (njp^e0.6
3 2 S ( n , p ) = 6 0 0.182+0.012 - 0.182+0.012
48Ti(n,o<)'»5ca ME58 0.0055 3 2 S ( n , p ) - 3 0 0 .013 0 .013(+0.006)»
5 0 T i ( n , « ) 4 7 c a ME58 0.0002 3 2 S(n ,p )=30 O.OOO46 ( 4 . 6 ( + 2 . 3 ) ) l ö t
5lT(n,oÔ' , 8So HU53
SA 59
NS68
KI71
0 . 0 8
O.OO99
(15 .3+2 .7)10-3
O.O2I7+O.OOI5
(1 )
3 1 P ( n , p ) . 1 9
(5)
(4 )
0 . 1 3
0 .0187
O.OI8+O.OO3 -
0.024+0.002 -i 0.022+0.003
55jh(n,o05 2V HS68 0 . 1 1 ( c a l c . ) (19) 0 . 1 l ( + 0 . 0 3 ) +
51pe(n ,«)5 1 Cr ME58
BA68
NS68
0 .37
0.79+15$
O.5O+O.I5
3 2 S ( n , p ) - 3 0
unknown
(5)
0.85
0 .6+0 .2 0 .6+0 .2
S ^ e C n , « ) 5 3 ^ BT65 0.397+0.12 unknown 0.397+0.12 +
59co(n,o<)56Mn
(see a l s o n e r t page)
SA 59
BA68
NS68
0 . 1 4
0.32+18$
O.I3I+O.OII
3 1 P ( n , p )
unknown
(5)
O.265
O.I54+O.OI6 -
1 1
FISSION NEUTRON AVERAGED CROSS-SECTION S 297
T A B L E II (cont. )
R e a c t i o n s
Refe
ren
ces
O r i g i n a l v a l u e s
r + A f f (ml>)
S t a n d a r d s
(m»)
Renormal i zed
v a l u e s
< 5 + ACT (nib)
Recommended
v a i l l e s
<J+A<?(nrtj)
^ C o f n , ^ 6 ^ !
( c o n t ' d ) BR70
PA72
O.I47+O.OO5 ( 3 ) O.I56+O.OO6 1 T
j o . 1 5 6 + 0 . 0 0 9 ^ C o f n , ^ 6 ^ !
( c o n t ' d ) BR70
PA72 0 .156+0 .006 2 3 5 u ( n , f ) « 1 2 5 0 O.I56+O.OII -
1 T
j o . 1 5 6 + 0 . 0 0 9
5 8 K i ( n , « ) 5 5 F e Sc57
BA68
0 . 1 7
2 .95+32$
(10)
unknown
O.52
3+O.9 +
6 2 S i ( n , o 0 5 9 p e SC57
ME58
RC59
0 . 0 1 3
O.O25
0 . 1 4
d o )
3 2 S ( n , p ) = 3 0
2 7 A l ( n f * ) = 0 . 6
0 . 0 4
O.O575
0 . 1 7
O.O9+O.O7 +
63cu(n,«-)«>Co RC59
NL63
LL65
O.72
0 . 5 4 + 0 . 0 7
0 . 4 4
2 7 A l ( n , o O = 0 . 6
58j t i (n ,p) .=101
unknown
0 . 8 7
O.6O+O.O9
O.5O+O.O6
63cu(n,«-)«>Co
P A 7 2
H062
MA64/4
NS68
M372
PA72
0 . 6 6 + 0 . 0 6
0 . 4 2
O.45+O.O5
O.382+O.O36
( 6 )
2 3 5 u ( n , f ) e l 3 3 5 ( 7 )
? ' A l ( n , « < ) - 0 . 5 7
5 4 p e ( n , p ) - 7 6
( 5 )
O.62+O.O4
O.535 O.475+O.O5 0 . 4 4 9 + 0 . 0 4 2
0.495+0.05
O.5O+O.O6
63cu(n,«-)«>Co
P A 7 2
H062
MA64/4
NS68
M372
PA72 0 . 5 0 + 0 . 0 5 f 2 3 5 u ( n , f ) - 1 2 5 0 0 . 5 0 + 0 . 0 6 O.5O+O.O6
6 8 Z n ( n ^ ) 6 5 „ i SA59
RA67/I
SC69
0 . 0 2 0
( 6 . 3 + p . 4 ) l 0 - 2
0 . 0 7 7 + 0 . 0 1
3 1 p ( n , p ) - 1 9
58ïi(nlp)-95 2 7A1(DP<)-0 .767
0 . 0 3 8
0 . 0 7 5 + 0 . 0 0 7 -
0 . 0 7 3 + 0 . 0 1 1 -• O.O74+O.OO6
298 CALAMAND
T A B L E III (cont. )
R e a c t i o n s
Refe
ren
ces
O r i g i n a l v a l u e s
<y£ A<? (mb)
S t a n d a r d s
(mb)
Renormal i zed v a l u e s
5 " ± (mt>)
Recommended v a l u e s
CT + & T (mb)
72Ge(n,<X)69niZn RC59 i l 3 1 P ( n , p ) = 1 9
NI63 O.O2O+O.OO5 5 8 Ni(n ,p) t=92 O.O25+O.OO6 - O.O25+O.006 +
74ae(n,o<)7 l mZn NI63 0 . 0 0 2 + 0 . 0 0 1 5 8 H i ( n , p ) = 9 2 O.OO25+O.OOI3 O.OO25+O.OOI3+
T*tstM16AS HS68 0 . 0 2 ( o a l . ) ( 1 9 ) 0 . 0 2 ( + 0 . 0 0 6 ) +
8 % ( n , « ) 8 9 s r BA68 0 .002+27$ unknown 0 . 0 0 2 + 0 . 0 0 0 6 +
9 2 Z r ( n , * ) 8 9 s k NS68 O.OI4 ( o a l c . ) (19 ) 0 . 0 1 4 ( + 0 . 0 0 4 ) +
9 3 m , ( n , « ) 9 0 g y RG72 0 .0585+0 .0022 2 7 A l ( n ^ ) = 0 . 6 0 . 0 7 0 7 + 0 . 0 0 5 I 0 . 0 7 0 7 + 0 . 0 0 5 I
93Nb(n,iX)90^y R072 0 .0221+0 .0003 2 7Al(n ,o<)=0.6 O.O267+O.OOI7 O.O267+O.OOI7
9 2 M o ( n A ) 8 9 Z r M E 5 8 0 . 0 1 7 3 2 s ( n , p ) » 3 0 0 . 0 4 0 . 0 4 ( + 0 . 0 2 ) +
9 8 M o ( n , K ) 9 5 Z r R A 6 7 / I ( 1 4 . 0 + 1 . 3 ) 1 0 - 3 4 6 T i ( n , P ) » 1 2 . 6 0 .0139+0 .0016 0 .0139+0 .0016
1 « O B ( n f o 0 1 3 ° I S A 5 9 2 . 4 x l 0 ~ 4 3 1 p ( n , p ) - 1 9 0 .00045
M E 5 8 0 . 0 0 0 5 3 2 s ( n , p ) = 3 0 0 .0012
S T 6 7 0 .0027+0 .0006 2 7 A l ( n ^ ö = 0 . 6 O.OO33+O.OOO8 - 0 .0033+0 .0008
L A 6 5 ( 1 . 9 + 0 . 3 ) 1 0 - 3 unknown 0 . 0 0 1 9 + 0 . 0 0 0 3 +
1 8 1 T a ( n , « ) " 8 L u SA 5 9 8 . 5 x 1 0 - 5 3 1 P ( n , p ) . 1 9 1 . 6 * 1 0 - 4 ( 1 . 6 ( ± 0 . 8 ) ) 1 0 - 4 +
1 8 4 w ( n o $ l 8 l H f RV67 ( 0 . 1 9 + 0 . 0 4 ) 1 0 - 3 (11 ) ( 0 . 2 0 ± 0 . 0 5 ) 1 0 " 3 ( 2 + 0 . 5 ) 1 0 - 4
FISSION NEUTRON AVERAGED CROSS-SECTIONS 299
T A B L E IV. I N T E G R A L (n, 2n) C R O S S - S E C T I O N S A V E R A G E D IN T H E U R A N I U M - 2 3 5 T H E R M A L FISSION N E U T R O N S P E C T R U M
R e a c t i o n s CO 0) o c £
O r i g i n a l v a l u e s S t a n d a r d s a Renormal i zed v a l u e s
Recommended v a l u e s
•v. « ce ff + (mb) (mb) <f + A 5 ° ( i a b ) ( f ± ß f f ("*>)
^Be ( n t 2 n ) 8 B e HB57
ZH63
73+20
70-140
(12)
(13)
PE66
GN68
116.2+13$
144+6
(14)
(15)
148+19
j-144+6
1 2 C ( „ , 2 n ) U C R060 3x lO" 6 3 2 S ( n , p ) - 6 0 3 . 5 x 1 o " 6
NS68 ( 3 . 6 + 4 . 2 ) 1 0 - 7 ( 5 ) ( 4 . 2 + 1 . 4 ) 1 0 - 7 - ( 4 . 2 + 1 . 4 ) 1 0 - ^
1 6 0 ( n , 2 n ) 1 5 0 NS68 ( 4 . 5 + 2 . 0 ) 1 0 " 6 ( 5 ) ( 5 . 3 + 2 . 4 ) i o - 6
( 5 . 3 + 2 . 4 ) 1 0 ~ 6
^ P t n . S n ) 1 8 ? LE63 ( 8 . 6 + 1 . 3 ) 1 0 - 3 3 2 S ( n , p ) . 6 9 ( 8 . 6 + 1 . 4 ) 1 0 - 3 -
HE67 7 . 1 0 i 1 0 " 3 + 2 0 $ S ^ K n . p ) ^ ( 9 . 4 + 2 . 0 ) 1 0 - 3 -
1ÎS68 ( 7 . 2 + 1 . 0 ) 1 0 - 3 ( 5 ) ( 8 . 5 + 1 . 3 ) 1 0 - 3 - y ( 7 . 3 + 0 . 7 ) 1 0 - 3
NJ70 ( 5 . 3 + 0 . 5 ) 1 0 " 3 2 7 A l ( n , o i ) = 0 . 6 1 ( 6 . 3 + 0 . 7 ) 1 0 - 3 -J
2iNa(n,2n)22Na BE57
WA62
6 . 1 0 - 3
0 .0012
unknown
unknown
NS68
ST70
( 2 . 7 + 0 . 7 ) 1 0 - 3
( 2 . 0 + 0 . 1 ) 1 0 - 3
(5 )
5®Ni(n,p)=105
( 3 . 2 + 0 . 8 ) 1 0 - 3 -
( 2 . 1 5 + 0 . 2 ) 1 0 - 3 -^ ( 2 . 2 + 0 . 2 ) 1 0 - 3
" 8 0 a ( n , 2 n ) " 7 C a K U 6 5 0 . 3 + 0 . 0 3 2 7 Al(n ,o<)=0 .6 0 . 3 6 + 0 . 0 4 0 . 3 6 + 0 . 0 4
4 6 T i ( n , 2 n ) 4 5 T i R060
SC 6 9
O.OO63
0 . 0 0 8 7 + 0 . 0 0 1
3 2 s ( n f p ) = 6 0
2 7 A l ( n , o i ) - 0 . 7 6 7
0 . 0 0 7 2 ( + 2 0 $ )
O.OO82+O.OOII -1 0 . 0 0 7 8 + 0 . 0 0 0 9
5 ° C r ( n , 2 n ) 4 9 c r QA71 0 .0054+0 .0008 (20 ) 0 . 0 0 6 + 0 . 0 0 1 0 . 0 0 6 + 0 . 0 0 1
a N u m b e r s i n p a r e n t h e s e s r e f e r t o n o t e s , a l i s t of w h i c h f o l l o w s T a b l e V .
300 CALAMAND
T A B L E III ( con t . )
R e a c t i o n s
Refe
ren
ces
O r i g i n a l v a l u e s
g 1 ± Û 5 s (mb)
S t a n d a r d s
(mb)
Renormal ized v a l u e s
p í ú f (mb)
Recommended v a l u e s
ù r r (mb)
55 jh (n ,2n )54 ( ln SC57
R060
H062
HS68
ST70
QA71
0 . 0 5
0 . I 9
0 . 1 8
0 . 2 0 2 + 0 . 0 1 8
0 . 2 6 + 0 . 0 2
0 . 2 5 8 + 0 . 0 3
(10 )
3 2 S ( n , p ) - 6 0
2 7 A l ( n / / ) . 0 . 5 7
(5 )
5 8 N i ( n , p ) . 1 0 5
(20 )
0 . 1 5
0 . 2 2
0 . 2 3
0 . 2 4 + 0 . 0 2 5
0 . 2 8 + 0 . 0 3
O . 2 8 5 + O . O 4 . O . 2 5 8 + O . O I 3
55 jh (n ,2n )54 ( ln
FA72
FA72
O . 2 7 + O . O I 5 2 3 5 u ( n , f ) . 1 3 3 5 ( 7 ) O . 2 5 3 + O . O I j
55 jh (n ,2n )54 ( ln
FA72
FA72 O . 2 5 3 + O . O I 2 3 5 U ( n , f ) . 1 2 5 0 0 . 2 5 3 + 0 . 0 2 -
5 4 F e ( n , 2 n p 3 F e HU53
BE57
O . O O 3 2
0 . 1 + 0 . 0 2
( 1 )
unknown
O . O O 5 0 . 0 0 5 ( ± 0 , 0 0 2 5 ) +
59co ( n,2n)5 8 C o NS68 0 . 3 4 0 + 0 . 0 0 3 0 ( 5 ) 0 . 4 0 + 0 . 0 4 O . 4 O + O . O 4
5®Hi(n ,2n)5 7 Ni SC57
R060
BA68
0 .0012
0 . 0 0 6
0 .004+0 .0009
d o ) 3 2 S ( n , p ) - 6 0
unknown
0 .0037
0 . 0 0 7 (¿20$) i 0 .0049+0 .0014
6 3 0 u ( n , 2 n ) 6 2 C u
0 .124+0 .011
6 3 0 u ( n , 2 n ) 6 2 C u ¡¡R6B
FA72
(5) O . I 2 4 + O . O O 9 1
0 .124+0 .011
6 3 0 u ( n , 2 n ) 6 2 C u ¡¡R6B
FA72 O . I 2 4 + O . O O 9 2 3 5 U ( n , f ) - 1 2 5 0 0 . 1 2 4 + 0 . 0 1 1 0 .124+0 .011
6 S Z n ( n , 2 n ) 6 5 2 n H062 < 4 2 7 A l ( n ^ * ) . 0 . 5 7 < 5 < 5 +
TOOe(n,2n)69ae R059 1 . 5 2 7 A l ( n ^ l ) - 0 . 6 1 . 8 1 . 8 ( + O . 9 ) +
7 5 A s ( n , 2 n ) 7 4 A B R060
NS68
ST70
0 . 2 9
0 . 3 0 4 + 0 . 0 3 6
O.3O+O.OI
3 2 S ( n , p ) - 6 0
( 5 )
i ^ i f n . p V l O S
0 . 3 3 ( + 2 0 $ )
0 . 3 6 + 0 . 0 5
0 . 3 2 + 0 . 0 2 —
i 0 . 3 3 + 0 . 0 2
7 8 S e ( n , 2 n ) 7 7 n S e K R 6 5 < 1 (21 ) < 1 < 1 +
FISSION NEUTRON AVERAGED CROSS-SECTION S 301
T A B L E II (cont. )
R e a c t i o n s
Ref
eren
ces
O r i g i n a l v a l u e s
O" 1 A « " ( m l )
S t anda rds
(mb)
Renormal ized v a l u e s
+ A 5 (mb )
Recommended v a l u e s CT+A5-(mb)
K R 6 5 < 1 0 (21) < 1 0 < 1 0 +
8 5Rb(n ,2n ) 8 4Rb HN66 0 . 2 unknown 0 . 2 ( + 0 . 1 ) +
8 8 Sr (n ,2n) 8 7°>Sr KR65 < 1 0 (21) <10 <10 +
8 9 Y ( n l 2 n ) 8 8 r R060
BA68
RA67/2
ST70
QA71
0 . 1 2
0 .22+23$
0 . 2 + 0 . 0 1
0 .137^D.005
0 .144+0 .02
3 2 s ( n , p ) = 6 0
unknown
4 6 T i ( n , p ) = 1 2 . 6
5 % i ( n , p ) - 1 0 5
(20)
0 . 1 4 + ( 2 0 $ )
0 . 2 0 + 0 . 0 2
0 .147+0 .010
0 .16+0 .024
l o . 1 5 6 * 0 . O i l
9°Zr ( n , 2 n ) 8 9 z r M 7 1 0.0687;K).01 (20) O . O 7 6 + O . O I 0.076;+p.01
S ^ H b t n ^ ) ? 2 ^ HO66 - 0 . 4 unknown
- 0 . 4 8 + 0 . 0 4
S ^ H b t n ^ ) ? 2 ^
KI71
PA72
0 . 4 0 2 + 0 . 0 3 4
0 . 5 2 + 0 . 0 3
(4)
235o(n , f )=1335 (7
O . 4 4 8 + O . O 3 8 -
O . 4 8 7 + O . O 2
- 0 . 4 8 + 0 . 0 4
S ^ H b t n ^ ) ? 2 ^
NS68
KI71
FA72
0 . 3 7 0 + 0 . 0 3 0
0 . 4 3 2 + 0 . 0 3 3
(5) 1
(4)
O.435+O.O35 -
0 .482+0 .037 _ - 0 . 4 8 + 0 . 0 4
S ^ H b t n ^ ) ? 2 ^
NS68
KI71
FA72 0 . 4 7 + 0 . 0 3 2 3 5 u ( n , f ) » 1 2 5 0
27A1 (n,o<)=0.6
0 . 4 7 + 0 . 0 4
O . 5 I + O . O 3
- 0 . 4 8 + 0 . 0 4
S ^ H b t n ^ ) ? 2 ^
RG72 0 . 4 2 0 + 0 . 0 0 7
2 3 5 u ( n , f ) » 1 2 5 0
27A1 (n,o<)=0.6
0 . 4 7 + 0 . 0 4
O . 5 I + O . O 3
- 0 . 4 8 + 0 . 0 4
W A g C n . a n J i O S g N S 6 8 0 . 3 9 + 0 . 0 7 (5) O . 4 6 + O . O 9 0 .46+0 .09
1 1 2 C d ( n , 2 n ) U l l l C d KR65 0 . 3 5 + 0 . 4 (21) 0 . 4 2 + 0 . 0 6 O . 4 2 + O . O 6
302 CALAMAND
T A B L E III (cont. )
React ions
Ref
eren
ces
O r ig ina l values Standards
(mb)
Renormalized va lues CT ± &CT-(mb)
Recommended va lues ffikCTÍmb)
1 2 ? l ( n , 2 n ) 1 2 6 I R060 1.7 3 2 S(n,p)o60 2.0 (+20$)
M572 ( 6 ) I . O 9 + O . O 5
FA72 1 . 0 9 + 0 . 0 5 f 235u(n,f)=1250 I . O 9 + O . O 8 0 . 9 + p . l
H S 6 8 1.62+0.24 (5) I . 9 + O . 3
0 . 9 + p . l
R068/1 0.647+0.010 32s(n,p)=60 0.744+0.044 •
ST70 1.02+0.01 ^ i O i . p M o s 1.10+0.07
«8Ba(n,2n)13T '»Ba K R 6 5 2.0+10$ (21) 2 . 4 + O . 3 2.4+0.3
1 8 6 H(n ,2n ) l 8 5w DR 66 10.0+0.7 197A u(n,T)-133+10 ( 2 2 )
10.0+0.7 +
1 85Re(n,2n) 1 84Re ST70 4.3+0.3 SSNifn .p^ lOS 4.6+0.4 4 . 6 + O . 4
185Ra(nf2n)l84»He ST70 O . 5 8 + O . O 3 S ^ i Ç n . p ^ l O S 0 . 6 2 + 0 . 0 5 0.62+0.05
l87Re(n,2n)l86Re IE67 10+6 ^ A u t n ,ir).190+19 (22)
10+6 +
>)196Au SCÓ9 3 . 1 4 + 0 . 2 27Al(n^<)«0.767 2.97+0.26 3.0+3
2 0 3 T l ( n , 2 n ) 2 0 2 T l R060 4 . 0 32s(n,p)«60 4 . 6 + ( 2 0 $ ) -
NS68 2 . 7 5 + 0 . 5 5 (5) 3.23+0.67 - • 3 . O + O . 5
QA71 2 . 4 1 + 0 . 3 5 (20) 2 . 6 4 + 0 . 4 2
FISSION NEUTRON AVERAGED CROSS-SECTION S 303
T A B L E II (cont . )
R e a c t i o n s £0 <u O r i g i n a l v a l u e s S t a n d a r d s Renormal i zed Recommended a v a l u e s v a l u e s t
0) ffi
CT+ A Ö ' ( m b ) (mb) 5 + A<r (mb) + Acr(mb)
2 ° 4 p b ( n t 2 n ) 2 ° 3 p t R060 3 . 3 3 2 s ( n , p ) = 6 0 3 . 8 + ( 2 0 $ )
DU62 5 .0+15$ 2 3®u(n , f )e=310 5 . 3 + O . 8 r 2 . 4 5 + 0 . 4
5 .0+15$ 2 3®u(n , f )e=310 5 . 3 + O . 8 r 2 . 4 5 + 0 . 4
KI71 I . 9 O + O . I 8 (4 ) 2 . 1 1 + 0 . 2 3
QA71 2 . I 9 + O . 3 O (20) 2 . 4 I + O . 3 6
2 5 2 T h ( n l 2 n ) 2 5 1 T h PH58 1 2 . 4 + 0 . 6 3 2 S ( n , p ) = 6 0 . 3 I 4 . 2 + I . I 1 4 . 2 + 1 . 1
SC 6 9 ~10 2 7 A l ( n , o < ) . 0 . 7 6 7
304 CAL AM AND
T A B L E V . I N T E G R A L (n, n') C R O S S - S E C T I O N S A V E R A G E D IN T H E U R A N I U M - 2 3 5 T H E R M A L FISSION N E U T R O N S P E C T R U M
React ions
Ref
eren
ces
O r ig ina l va lues
Ï + A ? (">•>)
Standards a
(mb)
Renormalized value s
b)
Recommended value s
77se(n,n')77mSe KR65
K067
600+60
652+30
(21)
Ni(n,p)=100
725+86
737+57 '733+46
8 7 S r ( n , n ' ) 8 7 m S r KR65
KO67
120+12
91+5
(21)
58Ni(n,p)=100
145+17
103+9 112+17
89ï(n,n')89mï DI68 128.4+25$. (25) 128+32
« N b ( n , n ' ) 9 3 m N b H071 97+35 ( c a l e . ) 103Rh(n,n'>=595+150(26 87+14 87+14
103Rh(n,n')103">Rh RO64
K067
BT68
KI69
H071
535.8 ( c a l o . )
403+40
716+40 ( c a l o . )
558+32 ( c a l e . )
595+150(calc.)
(27)
58Ni(n,p)=100
(28)
(29)
(26)
455+53
533+33
l n C d ( n , n ' ) 1 U m C d K R 6 5
KO67
140+14
289+15
(21)
58si(n,p)=100
169+20
327+26 •228+76
115ln(n,n ')115mIn KO67 181+10 58NÍ(n,p)=100 205+15
188+11
115ln(n,n ')115mIn
BR67.70
NJ70
PA72
177+6.0
156+5
200+8
(3) 27Al(n,<*)=61
2 3 5 u ( n , f M 3 3 5 (7)
188.5+6.4
188+6
187.3+6
188+11
115ln(n,n ')115mIn
FA72 188+4 2 3 5u(n , f )=1250 188+11 188+11
^ B a C n . n ' ) 1 3 7 m B a K R 6 5
K067
220+22
I89+IO
(21) 5 8 N i ( n , p ) . 1 0 0
266+32
214+17 ^25+22
a N u m b e r s in p a r e n t h e s e s r e f e r to n o t e s , a l i s t of which fo l l ows th i s t ab l e .
FISSION NEUTRON AVERAGED CROSS-SECTIONS 305
T A B L E V (cont . )
React ions
Ref
eren
ces
O r ig ina l va lues
( y ± ¿ 0 " (mb)
Standards
(mb)
Renormalized va lues
CT i ( m b )
Recommended va lues
CT ¿ ¿ÉyOab)
197Au(n,n )197mAu DI68 379.8+25$ (25) 380+95
2°4pb(n,n DU62 22+15$ 238U(n,f)=310 23.3+3.5 - I K067 I5.3+O.7 5%i (n ,p )=100 I 7 . 3 + I . 3 - H S . 6 + 1 . 5
KI71 18.9+2.0 (4) 2 I . O + 2 . 5 - )
N O T E S T O T A B L E S I I - V
(1) The fission flux was determined by comparison with another fission flux produced in a simpler geometry
such as a converter . Hughes' old data set could not be ignored since some of his measurements are still unique
or among the few. It was then necessary to perform an empi r i ca l renormal iza t ion . This was done by comparing
Hughes' values with well established ones whenever possible. Hughes' data were found to be consistently too
low by an average factor of 1 . 6 .
(2) The fission flux was deduced from the power generated in the uranium rod. This power was calculated
from the flow and temperature rise of the cooling water . No renormal iza t ion was performed.
(3) Bresesti 's da ta were first reported re la t ive to a va lue of 0 . 6 1 mb for Z 7Al(n, a ) 2 4 N a (Ref. BR67). After
comparison with da ta obtained by integration of exci ta t ion functions over various spectral representations for the
fission spectrum, these da ta were rescaled by a factor of 1 . 1 4 . The values for 4 6 T i ( n , p ) 4 6 S c , 5 8 Ni(n , p ) 5 8 m C o
and s z Mo(n , p) ®2Nb which do not appear in Ref. BR70 were mult ipl ied by 1 .14 by Fabry (Ref. FA72) and included
in his eva lua t ion .
(4) The fast neutron flux was monitored using the following standards: 104 mb, 1 .4 mb and 0 . 6 3 mb for
^ N i f n . p ^ C o , " M g ( n , p ) 2 4 N a and z , A l ( n , oc)24Na, respect ively. New values for these standards (see Tab le I)
lead to an average renormal izat ion factor of 1 . 1 1 .
(5) The fission spectrum averaged cross-sections ö were found by correcting the average cross-sections o 0
measured in a c r i t i ca l assembly of enriched uranium. In this case, our renormalized values were obtained by
mult iplying Nasyrov 's data by Fabry ' s rescaling factor, which is 1 .175 for these da ta .
(6) The core cent re react ion ra te measurements of McElroy have been transformed by Fabry (see Ref.FA72)
into fission spectrum averaged cross-sections. Fabry ' s scaling is re la t ive to a value of 0 .73 i 0 .015 for the 2 7 Al(n, a.) cross-section.
(7) Fabry 's data were directly quoted from Ref.FA72, although pract ical ly all of them were reported in
Ref. FA70/1. Although they result from absolute measurements, using the technique described in Ref. FA67
(see Note (9) for description of a similar technique), they are all consistently scaled to the uranium-235 average
fission cross-section value of 1335 mb, which can therefore rightly be considered as the standard.
(8) The double rat io measurements of Gründl (Refs GR67, GR68) have been converted to fission spectrum
averaged cross-sections by Fabry. All detai ls can be found in Ref. FA72.
306 CAL AM AND
(9) Depuydt et al . (Ref. DE62) have used the converter technique for their measurements. The absolute value of the fast flux <£f was determined from the absolute value of the thermal flux $ t j j by means of the relation :
= « £ f * t h G f C O I
where v = 2.43 ± 0. 02 is the mean number of neutrons emitted per thermal fission of uranium-235
If = 23 .8 ± 0 . 2 cm"1 is the macroscopic fission cross-section of the converter, computed for a microscopic thermal fission cross-section of (587 ± 6) b for uranium-235
G is a geometrical factor
fcor takes into account the secondary processes in the facility
<tth is determined using (98.8 ± 0 .3 ) b for the thermal capture cross-section of gold-197
We have not renormalized in this case.
(10) The data are based on the assumption that the fission-neutron flux inside the uranium receptacle slug
equals the thermal neutron flux outside the slug; they were renormalized by multiplying by 69 /22 .5 as shown
by Mellish (see Ref. ME60).
(11) Two standards were used for the neutron flux determination.- 0.54 mb and 10.6 mb for 6 3 Cu(n ,a ) and 4 6 Ti (n , p) cross-sections, respectively.
( 12) Neutron multiplication was measured in beryllium spheres. The quantity 5 n 2n " °n a w a s determined and s n 2 n was deduced taking 10 mb for the 9 B e ( n , a ) cross-section. No renormalization.
(13) The same method as in Note (12) was used with the same value of 10 mb for the ®Be(n,a) cross-section. No renormalization.
(14) Three standards were used for the neutron flux determination: 95 ± 6 mb, 61 ± 8 mb and 9. 8 ± 1 .1 mb for the ^ N i t n . p ) , a F e ( n , p ) and 4 6 T i ( n , p ) cross-sections, respectively.
(15) Green has used a manganese sulphate bath technique to make an accurate measurement of the ®Be(n, 2n) cross-section averaged over a pure ZKCf fission neutron spectrum. The technique measures neutron multiplication and therefore eliminates completely the need for a flux measurement. The 9Be(n, a) reaction was corrected using a calculated average cross-section of 38.2 ± 3 . 8 mb. Fission neutron spectra of 2MCf and Ö 5U are similar enough to justify averaging (n, 2n) cross-section values of Green and of Felber.
(16) The original value of 65 mb has been corrected by Fabry (see Ref. FA72).
(17) Data communicated by S. B. Wright to W.H. Martin and D.M. Clare.
(18) The original value was computed by integration of an evaluated excitation function o(E) over a Watt spectrum. It is clearly our recommended value in this case. Whenever a check is possible, the agreement between our recommended values and Barrall's computed values is generally good, therefore we can arbitrarily use a 1 0 r e l a t i v e error.
(19) Nasyrov's computed values are based on the relation 00 oo
3 = ° e f f ¡ X iE) dE ( / X(E) dE = 1) where X(E) ~ e"°-7 6 6 E
Eeff 0
The calculation was performed whenever it was possible to choose o e f f among experimental or evaluated data. When no other data are available, Nasyrov's calculated data become our recommended values with an arbitrary relative error of 30%.
(20) Two standards were used for the neutron flux determination: 72.6 mb and 0.307 mb fór ^Fe tn , p) and , 5 As(n , 2n) cross-sections, respectively.
(21) Four standards were used for the neutron flux determination: 92 mb, 3 .4 mb, 1 .2 mb and 0.63 mb for 5 8 N i ( n , p ) , 2 7 Al(n ,p ) , 2 4 Mg(n ,p ) and z , Al(n, OÍ) cross-sections, respectively.
(22) The standard chosen depends too much upon the shape of the fission spectrum to allow a renormalization.
(23) Ricabarra et al . have measured the following ratio:
5 [ 3 1 P(n, p ) a S i ] / 5 [ 3 z S(n,p) 3 2 P] = 0 . 5 1 i 0 .03.
FISSION NEUTRON AVERAGED CROSS-SECTIONS 307
(24) Value calculated from an empi r i ca l formula valid ta 8 < Z s 42. This value becomes our recommended
value for which we est imate a 30% rela t ive error.
(25) Cross-section averàged over a reactor spectrum from 0 . 1 MeV to infini ty. The standard reaction used was 2 1 Si(n, p) , for which an average cross-section of ( 10 .4 ± 2 . 4 ) mb, computed over the same energy range, has
been accepted . No renormal izat ion.
(26) Hegediis has measured the excitat ion function of 9 3 Nb(n, n ' ) 9 3 m N b which he integrated over a Watt
spectrum (Ref. WT52) to obtain 97 ± 35 mb . He used a standard value of 595 ± 150 mb for I 0 3Rh(n, n , ) 1 0 3 m R h .
This va lue was computed from Butler 's exci tat ion curve (Ref. BT68) using a larger conversion coeff ic ient ratio
a k / a for 1 0 3 mRh ( 0 . 1 3 1 instead of 0. 099) . This explains the lower value of 595 mb instead of 716 mb obtained
by Butler and Santry. The error on the 9 3 N b ( n , n ' ) 9 3 m N b cross-section includes the uncertainty of the standard.
(27) Obtained by integration of a Vogt and Cross (Ref. VC64) exci ta t ion function over a Cranberg spectrum
(Ref.CR56). No renormal iza t ion .
(28) The measured exci tat ion function was integrated over a Cranberg spectrum (Ref. CR56). Value not
retained for the average (see Note (26)) . No renormal izat ion.
(29) Kimura e t a l . measured the exci tat ion curve up to 4 . 6 MeV. Above this value, they used the curve
calculated by Vogt and Cross (Ref. VC64) to compute 5 using a Cranberg spectrum (Ref.CR56).
R E F E R E N C E S T O T A B L E S I I - V
AM64 AMIEL, S. , GILAT, J . , Nucl . Sei. Eng. 1£(1964) 105.
BA68 BRAUN, H . , NAGY, L . , Radiochim. Acta 10 (1968) 15.
BE57 BETTS, R .H . , DAHLINGER, O . F . , Rep. AECL PR-CM-11 (1957) 12 (quoted in Ref. ST70).
BL65 BARRALL, R. C . , McELROY, W . N . , Personnel Dosimetry for Radiation Accidents [Proc. Symp. Vienna,
1965), IAEA, Vienna (1965) 251.
B064 BOLDEMAN, J . W . , J. Nucl. Energy A/B 18 (1964) 417.
BR67 BRESESTI, A . M . , BRESESTI, M . , RYDIN, R. A . , Nucl . Sei. Eng. 29 (1967) 7 .
BR70 BRESESTI, A . M . , BRESESTI, M . , ROTA, A . , RYDIN, R. A . , LESCA, L. , Nucl . Sei. Eng. 40
(1970) 331.
BT68 BUTLER, J . P . , SANTRY, D . C . , Neutron Cross-sections and Technology (Ptoc. Conf. Washington,
1968) 2, NBS, Washington (1968) 803.
BU70 BRUGGEMAN, A . , DE SOETE, D . , HOSTE, J . , Radiochim. A c t a 2 ¿ ( 1 9 7 0 ) 147.
BY6S BYRNE, A.R., private communication to FREEMAN, N . J . , 1. Nucl. Energy 23 (1969) 713.
CR56 CRANBERG, L . , FRYE, G . , NERESON, N . . Phys. Rev. 103 (1956) 662.
DB57 DUBOVSKY, B .G. , KAMAEV, A . V . , MAKAROV, E . F . , At. Ehnerg. 2 (1957) 279 (Engl, t rans i . :
J. Nucl. Energy 6 (1957) 172).
DE62 DEPUYDT, H . , NEVE DE ME VERGNIES, M . , Reactor Science and Technology (J. Nucl. Energy)
A/B 16 (1962) 447.
DI68 DURRANI, S . A . , KOEHLER, W . , J. Nucl . Energy 22 (1968) 632,
DR66 DRUZHININ, A . A . , LBOV, A . A . , BILI BIN, L. P . , J. Nucl . Phys. (USSR) 4 (1966) 515 (Engl, t rans i . :
Sov. J. Nucl. Phys. 4 (1967) 366).
DR67 DRUZHININ, A . A . , LBOV, A . A . , BILIBIN, L . P . , J. Nucl . Phys. (USSR) 5 (1967) 18 (Engl, t rans i . :
Sov. J. Nucl. Phys. 5 (1967) 13).
DS67 DESCHUYTER, M. , HOSTE, J . , Radiochim. Acta 7 (1967) 198.
DS68 DESCHUYTER, M . , MASART, D . L . , SPEECKE, A . , HOSTE, J . , Radiochim. Acta 10 (1968) 11.
DU62 DURHAM, R. W. , NAVALKAR, M . P . , RICCI, E . , Rep. AECL-1434 (1962).
FA67 FABRY, A. , Nukleonik 10 (1967) 280.
FA70/1 FABRY, A. , Proc. Russian-Dutch-Belgian Meeting on Fast Reactor Physics, Melekess (1970) paper 35.
FA70/2 FABRY, A . , DE COSTER, M . , MINSART, G . , SCHEPERS, J . C . , VANDEPLAS, P . , Nuclear Data for
Reactors (Proc. Conf. Helsinki, 1970) 2, IAEA, Vienna (1970) 535.
FA72 FABRY, A . , Rep. BLG-465 (1972).
FE66 FELBER, F . F . , J r . , FARMELO, D . R . , VAN SICKLE, V. C . , Nucl. Sei. Eng. 25 (1966) 1.
FH64 FAEHRMANN, K . , Unpublished work quoted in Rep. ZFK-RN 23 (1964) 6 .
FM69 FREEMAN, N . J . , BARRY, J . F . , CAMPBELL, N . L . , J. Nucl . Energy 23 (1969) 713.
FR67 FRANÇOIS, J . P . , BE SOETE, D . , HOSTE, J . , Radiochim. Acta 8 (1967) 192.
308
GN68 GI66 G062 GR67 GR68 GV72 HA72 HE58 HG66 HG71 H062
HP69
HU53 HW70 J068
ÎA64
KI69
KI71 K065 K066/1 K066/2
K067
KR65
KU65
LA65
LE63 LL65
LW66 LW68
MA 64 /1
MA64/2 MA 64/3 MA64/4 MC72 ME58
ME60 MU61
NI63 NI64
N165/1 NI65/2
NJ7Û
NL63 NS68 OB67 OB69 PA61 PH58 PL73 P073 QA71
RA67/1
RA67/2
RB59
CAL AM AND
GREEN, L. , Nucl. Sel. Eng. 32 (1968) 30. GILLETTE, J. H . , Rep. ORNL-4013 (1966) 7.
GOPINATHAN, K .P . , Proc. Indian Acad. Sei. Sect. A 56 3 (1962) 141. GRÜNDL, J . A . , Nucl. Sei. Eng. 30 (1967) 39. GRÜNDL, J . A . , Nucl. Sei. Eng. 31 (1968) 191. GOVE, N.B. , WAPSTRA, A. H. , Nucl. Data Tables 11 (1972) 127. HANSEN, J .R . , STEINNES, E. , Radiochlm. Acta 17 (1972) 46.
HENDERSON, W.J . , TUNNICLIFFE, P.R. , Nucl. Sei. Eng. 3 (1958) 145. HEGEDÜS, F . , Helv. Phys. Acta 39(1966) 179. HEGEDÜS, F . , Rep. EIR-195 (1971).
HOGG, C. H. , WEBER, L.D. , Symp. Radiation Effects on Metals and Neutron Dosimetry (Proc. Symp. Los Angeles, 1962), American Society for Testing and Materials (1963) 133. HUPF, H.B. , Rep. TID-24823 ( 1969) 46, 52.
HUGHES, D . J . , Pile Neutron Research, Chapter 4, Addison-Wesley, Cambridge, Mass. (1953). HOWERTON, R.J . , Rep. UCRL-50400, Vol. 9 (1970). JOHANSEN, O. , STEINNES, E. , Radiochim. Acta 9 (1968) 47. JANTSCH, K. , unpublished, quoted in Rep. ZFK-RN 23 (1964) 6.
KIMURA, I . , KOBAYASHI, K. , SHIBATA, T . , J. Nucl. Sei. Technol. (Tokyo) 6 (1969) 485.
KIMURA, I . , KOBAYASHI, K. , SHIBATA, T . , J. Nucl. Sei. Technol. (Tokyo) 8 (1971) 59. KOEHLER, W. , KNOPF, K. , Rep. EANDC(E)-57 (1965) 29.
KOEHLER, W., Nukleonik 8 (1966) 9. KOEHLER, W., Nukleonik 8(1966) 59. KOEHLER, W., Nukleonik 10 (1967) 181.
KRAMER, H . H . , WAHL, W.H. , Nucl. Sei. Eng. 22 (1965) 373.
KURCHATOVA, L.N., LEVIN, V . l . , MOROZOV, L.N. , Radiokhimiya 7 (1965) 472 (Engl, transi . : Sov. Radiochem. 7 (1965) 469).
LAGERWALL, T. ,~Z. Naturforsch. 20a (1965) 1583.
LEONHARDT, W., Kernenergie 6 ( 1963) 45. LLORET, private communication to LISKIEN, H . . quoted in J. Nucl. Energy 27 (1973) 39. LEWIS, R.E. , BUTLER, T . A . , Nucl. Applies 2 (1966) 102. LEWIS, R.E., Rep. TID-24823 (1968) 49.
MARTIN, W.H. , CLARE, D . M . , Nucl. Sei. Eng. 18 (1964) 468.
CLARE, D . M . , MARTIN, W. H. , KELLY, B. T . , Nucl. Sei. Eng. 18 (1964) 448. MARTIN, W.H. , CLARE, D . M . , Nucl. Sei. Eng. 19 (1964) 465. CLARE, D . M . , MARTIN, W. H. , J. Nucl. Energy A/B 18 (1964) 703. MCELROY, W.N. , ARMANI, R.J . , TOCHILIN, E. , Nucl. Sei. Eng. 48 (1972) 51. MELLISH, C .E . , PAYNE, J . A . , OTLET, R.L., Rep. AERE I/R 2630 (1958).
MELLISH, C . E . , Rep. AERE-R3251 (i960): see also Nucleonics 19 3, (1961) 114.
MUENZE, R., JANTSCH, K. , HLADIK, O. , Kernenergie 4 (1961) 293. NIESE, S. , MORZEK, P . , HEROLD, C . , Kernenergie 6 ( 1963) 37.
NIESE, S. , Kernenergie 7 (1964) 105. NIESE, S. , Kernenergie 8 (1965) 499. NIESE, S. , Rep. ZFK-Rch 3 (1965) 23.
NAJZER, M . . RANT, J . , SOLING, H. , Nuclear Data for Reactors (Proc. Conf. Helsinki, 1970) 2, IAEA, Vienna (1970) 571.
N1LSSON, R., Neutron Dosimetry (Proc. Symp. Harwell, 1962) 2, IAEA, Vienna (1963) 275. NASYROV, F . , At. Ehnerg. 25(1968) 437 (Engl, t ransi . : Sov. J. At. Energy 25 ( 1968) 1251). O'BRIEN, H . A . , J r . , ELD RIDGE, J . S . , Nucleonics 25 2 (1967) 41. O'BRIEN, H . A . , J r . , Int. J. Appl. Radiat. Isot. 20 (1969) 121. PASSEL, T . O . , HEATH, R.L. , Nucl. Sei. Eng. 10 (1961) 308. PHILLIPS, J . A . , I. Nucl. Energy 7 (1958) 215. PEARLSTEIN, S. , J. Nucl. Energy 27 (1973) 81. POPE, A.L. , STORY, J . S . , Rep. AEEW-M 1191 (1973). QAIM, S .M. , WÖLF LE, R. , STÖCKLIN, G. , Chemical Nuclear Data, Measurements and Applications (Proc. Conf. Canterbury, 1971), Inst, of Civil Engineers, London (1971) 121. RAU, G . , Nukleonik 9 (1967) 228. RAU, G . , Rep. EANDC (E) 89 (1967) 41. ROBINSON, B.L., FINK, R.W. , private communication, quoted by ROCHLIN, R. S. , in Nucleonics 17 1 (1959) 54, Ref. 14.
FISSION NEUTRON AVERAGED CROSS-SECTIONS 309
RC59 ROCHLIN, R. S . , Nucleonics 17 1 (1959) 54. RE67 REDDY, G. R., SANKAR DAS, M . , Rep. BARC-280 (1967). RG68/1 REGGE, P. de, DAMS, R., HOSTE, J . , Radiochim. Acta 9 (1968) 57. RG68/2 REGGE, P. de, DAMS, R. , HOSTE, I . , Radiochim. Acta 10 (1968) 156. RG72 REGGE, P. de, DAMS, R. , HOSTE, J . , Radiochim. Acta 17 (1972) 69. RI57 RICHMOND, R., quoted by ROCHLIN, R. S . , in Nucleonics 17 1 (1959) 54, Ref. 12. RN66 REYNOLDS, S . A . , Rep. ORNL-3889 (1966) 53. RO60 ROY, J . C . , HAWTON, I. J . , Rep. CRC-1003 (1960). R064 ROY, J . C . , DURHAM, R . W . , FOWLER, A . G . , HAWTON, J . J . , Rep. CRC-1101 (1964). RR60 RICABARRA, D . , TURJANSKI, R. , ATEN, A . H . W . , J r . , J. Nucl . Energy, Part A: Reactor Science 12
(1960) 177. RV57 RIVIER, J . , BLACHOT, J . , HOCQUENGHEM, J . C . , Radiochim. Acta 8 (1967) 196. RY58 ROYS, P . A . , KALMAN SHURE, Nucl. Sei. Eng. 4 (1958) 536. SA59 SAELAND, E. , SAMSAHL, K . , quoted by ROCHLIN, R. S . , in Nucleonics 17 1 (1959) 54, Ref. 7. SC57 SCHUMAN, R. P . , MEWHERTER, A . C . , Rep. KAPL-1779 (1957). SC69 SCHUMAN, R. P . , OESTREICH, D . K . , unpublished (1969). ST67 STEINNES, E . , Rep. KR-123 (1967). ST70 STEINNES, E . , Radiochim. Acta 13 (1970) 169. VC64 VOGT, E . W . , CROSS, W . G . , quoted by ROY, J . C . , in Rep. CRC-1101 (1964). WA62 WAGNER, K. , Kernenergie 10 /11 (1962) 790. WA63 WAGNER, K . , POSER, H . , Kernenergie 6 (1963) 177. WE70 WEITMAN, J . , DAVERHOG, N . , FARVOLDEN, S . , Trans. Am. Nucl. Soc. 13 (1970) 558. WT52 WATT, B.E., Phys. Rev. £7 (1952) 1037. ZH63 ZHEZHERUN, I . F . , SADIKOV, I . P . , TARABAN 'KO, V . A . , CHERNYSHOV, A . A . , At. Ehnerg. 15 6
(1963) 485 (Engl, t rans i . : Sov. J. At. Energy 15 (1963) 1271). ZJ63 ZIJP, W . L . , Neutron Dosimetry (Proc. Symp. Harwell, 1962) 1, IAEA, Vienna (1963) 589.
T A B L E VI. ESTIMATED AVERAGE CROSS-SECTIONS FOR (n, p), (n,ß) AND (n, 2n) REACTIONS IN A FISSION NEUTRON S P E C T R U M
S a m p l e s ( n , p) r e a c t i o n s ( n , a ) r e a c t i o n s ( n 2 n ) r e a c t i o n s
Z Element Mass (MeV)
Eeff (MeV)
0 (mb)
Ao/o m
ET (MeV)
Eeff (MeV)
ö (mb)
A ó / a (%)
Ej. (MeV)
o (mb)
A5/o
3 Li 6
7
3.18
11.91
3 .8
12.5
39.
< 0. 0001
+ 35, -25 - 4 . 7 8
6 .13
6 .41
8.29
2 . 1
0.37
+70 -40
4 Be 9 14.26 15 .1 < 0. 0001 0.67 2 . 1 33. +80, -45 1.85 250.
10 24.15 24 .9 < 0.0001 •8.64 10.3 0.029 7.49 1.0
5 B 10 - 0 . 2 3 0.7 - 2 . 7 9 - 0 . 8 9.28 0.18
11 11.70 12.6 < 0. 0001 7 .24 9 .2 0.15 12.50 0.008
6 C 12 13.64 14.7 < 0. 0001 6.18 8.6 0.37 20.28 < 0. 0001
13 13.63 14.8 < 0.0001 4 .13 6 .5 3 .3 5 .33 10. +70, -40
7 N 14 - 0 . 6 3 0.7 0.17 3 . 1 25.0 11.31 0. 030
15 9.59 11.0 0.001 +150, -60 8.13 11 .1 0.012 11.56 0. 024
8 0 16 10.24 11.8 0.0005 +150, -60 2 .35 5 . 7 6 .0 16.65 0. 0002
17 8.36 9 .9 0. 0006 +150, -60 - 1 . 8 2 1.6 4 .39 31.
18 14.01 15.5 < 0.0001 5.29 8 .7 0.42 8.49 0.56
9 F 19 4. 25 5 .9 0.23 +150, -60 1.60 5.4 8.0 10.98 0. 050
10 Ne 20 6.56 8.5 0. 078 +100, -50 0.62 4 . 8 12, 17.71 0.0001
21 5.14 7 .0 0.049 +150, -60 - 0 . 7 0 3 . 5 26. 7 .08 2 . 5
22 10. 53 12.4 0. 0003 +150, -60 5.97 10.2 0.056 10.84 0.064
TABLJE VI (cont. )
11 Na 23 3 .75 5 .8 0 .31 +150, -60 4 .03 8.7 0.49 +80, -45 12.96 0.008 +70 -40
12 Mg 24 4 .93 7 .2 0.62 +100, -50 2.66 7 . 8 1 .8 17.22 0. 0001
25 3.17 5.4 0.58 +150, -60 - 0 . 4 8 4 .7 14. 7 .63 1.6
26 8.22 10.5 0.005 +150, -60 5.63 10.8 0.027 11.52 0. 036
13 AI 27 1.90 4 . 3 3 . 1 +150, -60 3 .25 8 .8 0.48 13.54 0.005
14 Si 28 4.00 6 .5 2 . 0 + 60, -40 2 .75 8 .7 0.56 17.79 0.0001
29 3.00 5 .5 0.56 +150, -60 0.03 5 .9 7 . 9 8.77 0 .59
30 8. 02 10.5 0.005 +150, -60 4 .34 10.2 0. 069 10.96 0.0070
15 P 31 0.73 3 .5 11. +150, -60 2 . 0 1 8 .3 1 . 1 12.70 0.013
16 S 32 0. 96 3 .9 100. + 35, -25 - 1 . 5 3 5 . 1 13. 15.56 0.0008
33 - 0 . 5 3 2 .4 58. +150, -60 - 3 . 4 9 3 .2 41. 8 .91 0.56
34 4 .45 7.4 0.58 +100, -50 1.37 8 .0 1.7 11.75 0.035
36 10.44 13.4 0.0001 +150, -60 4 . 2 3 10.9 0. 029 10.17 0.17
17 Cl 35 -0 .62 2 .5 52.0 +150, -60 - 0 . 9 4 6 . 1 8 .0 13.01 0.010
36 - 1 . 9 3 1 .1 - 2 . 4 6 4 . 6 19. 8 .82 0 .65
37 4 .18 7 . 3 0.046 +150, -60 1.32 8 .3 1 .2 10.59 0.12
18 A 36 -0 .07 3 .2 320. + 35, -25 - 2 . 0 0 5 .4 12. 15.68 0.0008
38 4 .24 7 . 5 0.54 +100, -50 0.23 7 .7 2 . 9 12.15 0.025
40 6.89 10.2 0.010 +150, -60 2 .55 10.0 0 .11 10.12 0.19
19 K 39 - 0 . 2 2 3 .2 20. +150, -60 -1 .36 5 .4 13. 13.42 0.007
40 - 2 . 2 9 1.2 -3 .87 3 .9 31. 8 .00 1.6
TABLJE VI (cont. )
S a m p l e s ( n , p) r e a c t i o n s ( n . ") r e a c t i o n s ( n 2 n ) r e a c t i o n s
Z Element Mass ET (MeV)
Eeff (MeV)
ff (mb)
A o/ff m
E t
(MeV) Eeff
(MeV) ff
(mb) Ao/a E t
(MeV) o
(mb) Aa/o
19 K 41 1.75 5 .2 1 . 1 +150, -60 0 .11 7 . 8 2 .6 +80, -45 10.34 0.16 +70, -40
20 Ca 40 0.54 4 . 2 77. + 35, -25 - 1 . 7 5 6 . 3 7 .8 16.02 0.0006
42 2.80 6 .5 2 . 6 + 60, -40 - 0 . 3 5 7 . 8 2 .7 11.75 0.040
43 1. 06 4 . 7 2 . 3 +150, -60 - 2 . 2 9 5 .9 10. 8.12 1 .5
44 4.99 8 .6 0 .11 +100, -50 2 . 8 1 10.9 0. 033 11.39 0. 059
46 7.08 10.7 0.005 +150, -60 6 .05 14.2 0.0003 10.63 0.13
48 13.22 16.8 < 0.0001 8 .81 16 .9 < 0. 0001 10.16 0 .21
21 Sc 45 -0 .53 3 .2 22. +150, -60 0.40 8 .8 0.67 +80, -45 11.57 0.050
22 Ti 46 1.62 5 .5 12. + 60, -40 0 .08 8 .9 0.59 13.48 0.008
47 -0 .18 3 .7 11. +150, -60 - 2 . 1 8 6.6 7 . 3 9.06 0 .61
48 3.27 7 .2 0.98 +100, -50 2.07 10.9 0. 035 11.87 0.039
49 1.25 5 .1 1 .4 +150, -60 - 0 . 2 3 9 .0 0. 53 8 .31 1 .3
50 6.23 10.1 0. 013 +150, -60 3 . 5 1 12.3 0.005 11.17 0.079
23 V 50 -3 . 00 1.0 -0 .76 8 .3 1 .5 9.52 0.40
51 1.71 5.7 0.60 +150, -60 2 .10 11.2 0.024 11.27 0.073
24 Cr 50 0.26 4 . 5 57. + 35, -25 -0 .32 9 . 1 0.47 13.20 0.011
52 3.26 7 .5 0.66 +100, -50 1.23 10.6 0. 057 12.27 0.028
53 2.69 6 .8 0.12 +150, -60 - 1 . 8 0 7 .6 4 . 1 8.09 1.7
T A B L E VI (cont . )
24 Cr 54 6.34 10.5 0.008 +150 -60 1.57 11.0 0. 033 +80, -45 9.90 0.29 +70, -40
25 Mn 55 1.84 6 .2 0.30 +150, -60 0.64 10.3 0.090 10.41 0 .18
26 Fe 54 -0 . 09 4 .4 70. + 35 -25 -0 .84 9 . 1 0.49 13.63 0. 007
56 2.97 7.4 0 .81 +100, -50 -0 .32 9.6 0 .25 11.40 0.068
57 1. 81 6 .3 0.27 +150, -60 -2 .40 7 .5 5.0 7 .78 2 . 5
58 5 .41 CO
CO
0.023 +150, -60 1 .41 11.4 0.019 10.22 0.22
27 Co 59 0.80 5.4 1.0 +150, -60 -0 .32 9 .9 0.17 10.64 0 .15
28 Ni 58 -0 .39 4 . 3 85. + 35, -25 -2 .89 7 .6 4 . 4 12.41 0. 026
59 -1 .86 2 . 9 41. +150 -60 - 5 . 0 9 5.4 17. 9 .15 0 .65
60 2. 08 6 .8 2 . 1 + 60 -40 - 1 . 3 5 9 .2 0.46 11.58 0.060
61 0.53 5 .2 1 .4 +150 -60 -3 .57 6 .9 7 . 3 7 .95 2 . 2
62 4. 51 9 .2 0.058 0.44 11.0 0.036 10.77 0.14
63 2.92 7 .6 0.043 -1 .56 9.0 0.63 6 .95 5 . 9
64 6.32 11 .1 0.004 2.47 13.0 0.002 9 .81 0.36
29 Cu 63 -0 .72 4 .2 6 . 3 - 1 . 7 1 9 . 1 0.55 11.03 0 .11
65 1.37 6 .2 0.34 0.09 10.9 0. 043 10.06 0 .28
30 Zn 64 - 0 . 2 1 4 . 8 43. + 35 -25 -3 .87 7 . 3 6 .0 12.04 0.040
66 1.88 6 .8 2 . 2 + 60 -40 -2 .27 8 .8 0.86 11.22 0.091
67 - 0 . 2 1 4 . 8 2 .7 +150 -60 - 4 . 8 8 6 .2 12. 7 .16 5 .0
68 3.86 8 .9 0.098 +100 -50 - 0 . 7 8 10.3 0.10 10.35 0.22
70 6 .3 11.3 0.003 +150 -60 0.72 11.8 0. 012 9 .35 0.60
TABLJE VI (cont. ) CO
S a m p l e s U . p) r e a c t i o n s ( n , a ) r e a c t i o n s ( n 2 n ) r e a c t i o n s
Z Element Mass ET
(MeV) Eeff
(MeV)
ä (mb)
Ao/o
m ET
(MeV) Eeff
(MeV)
Ö
(mb)
A a/S m
E T
(MeV)
o
(mb)
ña/a
3 1 Ga 6 9 0 . 1 3 5 . 2 1 5 + 1 5 0 - 6 0 - 2 . 5 8 9 0 0 6 7 + 8 0 , - 4 5 1 0 . 4 6 0 . 2 0 + 7 0 - 4 0
7 1 2 . 0 5 7 . 2 0 0 8 3 + 1 5 0 , - 6 0 - 0 . 9 3 1 0 4 0 0 9 2 9 . 4 3 0 . 5 6
3 2 Ge 7 0 0 . 8 8 6 . 1 6 5 + 6 0 , - 4 0 - 2 . 9 6 8 7 1 0 1 1 . 7 0 0 . 0 5 9
7 2 3 . 2 6 8 . 5 * 0 1 8 + 1 0 0 , - 5 0 - 1 . 4 8 1 0 2 0 1 2 1 0 . 9 0 0 . 1 3
7 3 0 . 7 8 6 . 0 0 4 9 + 1 5 0 , - 6 0 - 3 . 9 1 7 7 4 4 6 . 8 8 7 . 0
7 4 4 . 7 8 1 0 . 0 0 0 2 0 0 . 4 5 1 2 1 0 0 0 8 1 0 . 3 4 0 . 2 3
7 6 6 . 7 2 1 1 . 9 0 0 0 1 2 . 4 1 4 0 0 0 0 0 6 9 . 5 7 0 . 5 1
3 3 As 7 5 0 . 4 1 5 . 8 0 6 7 - 1 . 2 0 1 0 7 0 0 0 6 3 1 0 . 3 8 0 . 2 3
3 4 Se 7 4 0 . 5 8 6 . 0 7 9 + 6 0 , - 4 0 - 3 . 3 4 9 3 0 4 6 1 2 . 2 3 0 . 0 3 6
7 6 2 . 2 1 7 . 7 0 6 3 + 1 0 0 , - 5 0 - 1 . 6 9 1 0 5 0 0 8 4 1 1 . 3 1 0 . 0 9 1
7 7 - 0 . 1 0 5 . 3 1 4 + 1 5 0 , - 6 0 - 4 . 4 7 7 7 4 6 7 . 5 1 3 . 9
7 8 3 . 5 3 9 . 0 0 0 9 2 + 1 5 0 , - 6 0 - 0 . 4 6 1 1 8 0 0 1 3 1 0 . 6 3 0 . 1 8
8 0 5 . 2 9 1 0 . 7 0 0 0 7 + 1 5 0 - 6 0 0 . 9 6 1 3 . 0 0. 0 0 2 1 0 . 0 2 0 . 3 4
8 2 7 . 1 7 1 2 . 6 0. 0 0 0 4 + 1 5 0 - 6 0 2 . 5 8 1 4 . 7 0. 0 0 0 2 9 . 3 9 0 . 6 4
35 Br 7 9 - 0 . 6 4 5 . 0 2 . 3 + 1 5 0 - 6 0 - 1 . 8 6 1 0 . 6 0. 0 7 5 1 0 . 8 3 0 . 1 5
8 1 0 . 8 1 6 . 4 0. 2 9 + 1 5 0 - 6 0 - 0 . 4 3 1 2 . 0 0. 0 1 0 1 0 . 2 9 0 . 2 6
3 6 Kr 7 8 - 0 . 0 9 5 . 6 1 5 . + 6 0 - 4 0 - 3 . 6 7 9 . 0 0. 7 2 1 2 . 1 3 0 . 0 4 1
8 0 1 . 2 4 6 . 9 2 . 2 + 6 0 - 4 0 - 2 . 3 5 1 0 . 4 0. 1 0 1 1 . 6 7 0 . 0 6 6
TABLJE VI (cont. )
36 Kr 82 2 .33 8 .0 0 .42 +100 -50 - 0 . 9 9 11 .8 0 .014 +80, -45 1 1 . 1 1 0 .12 + 70 -40
83 0 .19 5 . 9 0 .62 +150 -60 - 3 . 4 2 9 . 1 0 .66 7 .56 3 . 9
84 3. 97 9 .6 0 .039 0 .40 1 3 . 1 0 .002 10.64 0 .19
86 6 .60 1 2 . 3 0. 0007 2 .20 1 4 . 9 0. 0002 9. 97 0 .37
37 Rb 85 - 0 . 1 0 5 .7 0 . 8 5 - 0 . 9 9 12 .0 0 .011 10 .60 0 .20
87 3 .15 9 .0 0 .007 1 .22 14 .3 0 .0004 10 .04 0 . 3 5
38 Sr 84 0 . 1 1 6 . 0 8 . 6 + 60, - 40 - 2 . 6 9 10 .6 0 .078 12.16 0 .042
86 1. 00 7 . 0 2 . 0 - 1 . 1 2 12.2 0 .0081 11 .62 0 .073
87 - 0 . 51 5 .4 1 . 3 +150 -60 - 3 . 2 1 1 0 . 1 0 .16 8 . 5 3 1 . 6
88 4. 57 10 .5 0 .011 +150 -60 0 .80 1 4 . 1 0 .0006 11 .24 0 . 1 1
39 Y 89 0 .72 6 . 8 0 .17 +150 -60 - 0 . 7 0 12 .9 0 .003 11.60 0 .076
40 Zr 90 1 .52 7 . 7 0 . 7 1 +100 -50 - 1 . 7 5 1 2 . 1 0 .010 12 .07 0 .048
91 0.77 7 .0 0 . 1 3 +150 -60 - 5 . 6 6 8 . 3 2 . 2 7 . 2 8 5 . 5
92 2 .87 9 .0 0 .10 - 3 . 3 9 1 0 . 5 0.096 8 . 7 3 1 . 3
94 4 . 2 6 10 .5 0. 011 - 2 . 0 7 1 1 . 8 0 .015 8 . 2 8 2 . 1
96 6. 08 12 .2 0 .0009 - 0 . 1 7 1 3 . 8 0 .0009 7 . 9 1 3 . 1
4 1 Nb 93 - 0 . 7 2 5 . 6 1 . 0 - 4 . 9 1 9 . 2 0 . 6 1 8 .92 1 . 1
94 - 1 . 6 8 4 . 6 75. - 5 . 6 3 8 . 6 1 .5 7 . 3 1 5 . 4
42 Mo 92 - 0 . 4 3 6 . 0 9 . 1 + 60, - 40 - 3 . 6 9 10.7 0 .072 12 .83 0 .023
94 1 .28 7 . 7 0 .73 +100, -50 - 5 . 1 3 9 . 3 0 .54 9 . 7 8 0 .48
95 0 .14 6 .6 0 .24 +150, -60 - 6 . 3 9 8 . 0 3 . 4 7 . 4 5 4 . 8
TABLJE VI (cont. )
S a m p l e s ( n , p ) r e a c t i o n s ( n , a ) r e a c t i o n s ( n , 2 n ) r e a c t i o n s
Element Mass (MeV)
Eeff (MeV) (mb)
AO/CT
C7«) E t
(MeV) Eeff
(MeV) (mb) Ao/o
(MeV) (mb) Aa/cr W>)
4 2
4 3
4 5
4 6
Ru
Rh
Pd
96
97
98
100
97
100 101
102
1 0 4
1 0 3
102
1 0 4
1 0 5
2 . 4 3
1.16
3 . 8 6
5 . 2 7
- 1 . 1 3
- 2 . 3 7
0.60
- 0 . 57
0 . 9 3
- 0 . 4 9
2.62
0 . 8 6
3 . 7 6
4 . 5 6
-0.02
0 . 3 7
1 . 7 0
-0 .22
7 . 6
1 0 . 3
1 1 . 7
5 . 4
4 . 1
7 . 2
6 . 1
7 . 6
6.2
9 . 3
7 . 5
1 0 . 5
11.2
6 . 7
7 . 2
8.6
6 . 7
0.12
0 . 0 5 7
0 . 0 1 5
0 . 0 0 2
1 . 4
160.
0.10
8 . 1
0 . 8 7
0 . 4 5
0 . 0 6 9
0 . 0 6 7
0.012 0 . 0 0 4
0.22
1.6 0 . 2 0
0.22
+ 1 0 0 , - 5 0
+ 1 5 0 , - 6 0
+ 3 5 , - 2 5
+ 1 5 0 , - 6 0
+ 6 0 , - 4 0
+ 1 0 0 , - 5 0
+ 1 5 0 , - 6 0
+ 1 0 0 , - 5 0
+ 1 0 0 , - 5 0
+ 1 5 0 , - 6 0
- 3 . 9 9
- 5 . 3 7
- 3 . 2 0
- 2 . 3 9
- 4 . 8 1
- 5 . 9 1
- 3 . 9 2
- 6 . 3 8
- 5 . 1 4
-6.82
- 3 . 9 7
- 5 . 8 0
- 2 . 5 0
- 1 . 0 6
- 3 . 4 8
- 5 . 3 4
- 4 . 1 9
- 6 . 3 3
1 0 . 4
9 . 0
11.2
12.0
9 . 9
8.8
10.8
8 . 5
9 . 8
8 . 1
1 0 . 9
9 . 1
1 2 . 4
1 3 . 8
11.8
10.1 1 1 . 3
9 . 1
0.11
0 . 8 4
0 . 0 3 7
0. 012
0 . 2 3
1 . 1
0 . 0 6 5
1 . 7
0 . 2 7
3 . 1
0 . 0 5 7
0 . 7 5
0 . 0 0 7
0 . 0 0 0 9
0.016
0.18
0 . 0 3 3
0 . 7 7
+ 8 0 , - 4 5 9 . 2 5
6 . 8 9
8 . 7 3
8 . 3 8
9 . 5 1
7 . 4 7
8 . 9 7
10.81
1 0 . 3 5
7 . 5 4
9 . 7 7
6 . 8 7
9 . 3 1
9 . 0 0
9 . 4 0
1 0 . 6 9
10.12 7 . 1 4
0 .81
8 . 4
1 . 4
2 . 0
0 . 6 3
4 . 8
1 . 1
0 . 1 7
0 . 2 8
4 . 5
0 . 5 0
8 .8
0 . 8 0
1 . 1
0 . 7 4
0 . 2 0
0 . 3 6
6 . 9
+ 7 0 , - 4 0
O > t-> S > z ö
TABLJE VI (cont. )
46 Pd 106 2 . 7 8 9.7 0 .040
107 0 .73 7 . 6 0 .061
108 3 . 7 5 10.6 0 .010
110 4 .66 11 .6 0 .002
47 Ag 107 - 0 . 7 5 6 . 2 0 .47
109 0 .34 7 . 3 0 .095
48 Cd 106 - 0 . 5 8 6 . 5 4 . 7
108 0 .87 8 .0 0 . 5 1
110 2 . 1 3 9 . 2 0 .086
111 0 .25 7 . 4 0 .083
112 3 .25 10 .4 0 .014
113 1 .24 8 . 3 0 .022
114 4 . 2 6 11 .4 0 .003
116 5 .57 12.7 0 .0005
49 In 113 - 0 . 4 9 6 . 7 0 .24
115 0 .67 7 . 9 0 . 0 4 1
50 Sn 112 - 0 . 1 2 7 . 2 1 . 7
114 1 . 2 1 8 .6 0 .22
115 - 0 . 3 0 7 . 1 0 .13
116 2. 51 9 . 9 0 .031
117 0 .69 8 .0 0 .036
118 3 . 4 5 10 .8 0 .008
+150, -60
+ 60, - 40
+100, -50
+150, -60
+100, -50
+100, -50
+150, -60
12 .4
10 .0
13 .6
1 4 . 5
1 1 . 5
12 .4
1 0 . 3
11 .2
1 2 . 3
10 .1
13 .7
11 .1
14 .3
15 .8
12 .4
13 .6
11 .1
12 .2
1 0 . 3
13 .4
11 .2
14 .4
0 .007
0.22
0 .001
0 .0004
0 .025
0.007
0 .14
0 .039
0.008
0 .19
0 . 0 0 1
0 .046
0 .0005
0 .0001
0.007
0 .001
0 .046
0.010
0 . 1 5
0 .002
0 . 0 4 1
0 .0004
i
en
S n H
I
TABLJE VI (cont. )
S a m p l e s ( n p) r e a c t i o n s ( n , a ) r e a c t i o n s ( n 2 n ) r e a c t i o n s
Z Element Mass (MeV)
Eeff (MeV)
3 (mb)
A ö / 5
W») E T
(MeV) Eeff
(MeV) ö
(mb) Aö/o
M
E F (MeV)
o (mb)
AO/CT m
50 Sn 119 1.58 8 .9 0 .009 +150. -60 - 4 . 3 0 11.9 0. 015 +80 -45 6 .54 14. +70, -40
120 4 .86 12.2 0 .001 - 0 . 9 6 15.6 0 .0001 +80 -45 9 .18 1 .0
122 5.97 13 .3 0.0002 0 .08 16 .5 < 0 .0001 8 .88 1 .4
124 6.67 14.0 0 .0001 1 .98 18.5 < 0 .0001 8 .56 1 .9
51 Sb 121 - 0 . 4 0 7 . 0 0 .16 - 3 . 5 1 14.5 0.0004 +80 -45 9 .32 0 .89
123 0 .63 8 . 1 0 .032 - 1 . 9 2 14.8 0. 0003 9 .04 1 .2
52 Te 120 0 .21 7 .7 0 .86 +100, -50 - 6 . 6 4 10.4 0 .13 10.37 0 . 3 1
122 1 .21 8 .8 0.17 +100, -50 - 5 . 4 0 11.6 0.024 9 .87 0 .52
123 - 0 . 8 4 6 .7 0 .25 +150, - 6 0 - 7 . 5 8 9.4 0.56 6 . 9 9 8 . 9
124 2 .13 9 . 7 0.044 - 4 . 3 4 12.6 0. 006 9 .50 0.76
125 - 0 . 0 2 7 . 5 0 .078 - 6 . 5 6 10.4 0 .13 6 .64 13.
126 2 .97 10.5 0 .013 - 3 . 3 9 13.6 0 .001 9 .18 1 .0
128 3 .53 11.0 0.006 - 2 . 5 5 14.5 0.0004 8 .84 1 . 5
130 4 . 2 5 11 .8 0.002 - 1 . 8 1 15 .1 0.0002 8 .48 2 . 1
5 3 I 127 - 0 . 09 7 . 6 0 .068 - 4 . 2 8 13.0 0.003 9 . 2 1 1 .0
129 0.72 8 . 4 0 .021 - 3 . 4 7 13 .8 0. 001 8 . 9 1 1 .4
5 4 Xe 124 - 0 . 6 9 7 . 0 2 . 5 + 60, -40 - 6 . 7 9 10.8 0. 076 10 .31 0 .34
126 0 .47 8 .2 0 .42 +100. -50 - 5 . 6 4 11 .8 0. 018 10.17 0 . 3 9
128 1 .35 9 . 1 0 . 1 1 +150, -60 - 4 . 8 1 12.6 0. 006 9 .69 0 .64
TABLJE VI (cont. )
54 Xe 129 -0 .59 7 .2 0.12 +150, -60 - 7 . 0 2 10 .5 0.12 +80 -45, 6.96 9 .5
130 2 .23 10.0 0.029 -4 .06 13.4 0. 002 9.33 0. 92
131 0.19 8.0 0.038 - 6 . 2 2 11.2 0. 044 6.66 13.
132 2.82 10.6 0.012 -3 .37 14. 1 0. 0007 9.00 1 .3
134 3.40 11.2 0.005 - 2 . 7 2 14.8 0. 0003 8.60 1 .9
136 6.27 14.0 0.0001 - 2 . 1 2 15 .3 0. 0001 8.05 3 .4
55 Cs 133 -0 .36 7 . 5 0 .081 - 4 . 4 5 13 .3 0. 002 9 .05 1 .2
135 0.38 8 .3 0. 025 -3 .67 14 .1 0. 0007 8.89 1 .5
137 3.59 11.5 0. 0002 - 3 . 0 6 14.7 0. 0003 8.34 2 . 5
56 Ba 130 -0 .34 7.6 1.0 +100, -50 -6 .67 11.4 0. 033 10.30 0 .35
132 0.49 8 .5 0.28 +100, -50 - 5 . 8 9 12 .1 0.012 9 .88 0 .54
134 1.29 9 .3 0. 084 +150, -60 - 5 . 1 0 12.9 0. 004 9.54 0.76
135 -0 .57 7 .4 0.095 - 7 . 0 6 11. 0 0. 06 7.03 9 . 1
136 1.78 9 .8 0.040 - 4 . 4 0 13.6 0.0015 9.17 1 . 1
137 0. 39 8.4 0.022 - 6 . 0 4 12.0 0.015 6.95 10.
138 4 .65 12.7 0.0005 - 3 . 8 8 14.2 0.0006 8.67 1 .8
57 La 138 -2 . 58 5 .5 25. + 60, -40 - 6 . 8 3 11.5 0. 030 7.37 6 .6
139 1.49 9.6 0.004 +150, -60 - 4 . 8 2 13.5 0.002 c»
1 .6
58 Ce 136 -0 . 36 7 .8 0.80 +100, -50 -6 .76 11.8 0. 019 10.08 0 .45
138 0.28 8 .5 0.28 +100, -50 - 5 . 9 8 12.5 0. 007 9.64 0 .71
140 3 .01 11.2 0.005 +150, -60 - 5 . 3 4 13 .1 0. 003 9.27 1 .0
142 3.76 11.9 0.002 l - 6 . 0 9 12.4 0. 008 7 .21 7 . 9
+70, -40
O Z z m C g z > s g o s e
o H o z
TABLJE VI (cont. )
S a m p l e s ( n p) r e a c t i o n s ( n , oc) r e a c t i o n s ( n , 2 n ) r e a c t i o n s
Z Element Mass E T Eeff o Aö/ff ET Eeff 5 ACT/O E T ö Aa /a Element Mass
(MeV) (MeV) (mb) (%) (MeV) (MeV) (mb) (MeV) (mb) m
59 Pt 141 -0 .20 8 .1 0.035 +150, -60 -6 .15 12.5 0.007 +80 • - 45 9.46 0. 86 +70, -40
60 Nd 142 1.39 9 .8 0.042 -6 .64 12.3 0. 010 9.88 0. 57
143 0.15 8.6 0.017 -9 .72 9 .3 0. 71 6.17 22.
144 2.23 10.6 0.013 -7 .33 11.6 0.027 7.87 4 . 2
145 1.03 9.4 0.005 -8 .73 10.2 0.20 5.80 32.
146 3.32 11.7 0.002 -6 .34 12.7 0.006 7.62 5 .4
148 4 .15 12.5 0.0008 -5 .37 13.5 0.002 7.37 6 .9
150 4 .25 12.7 0. 0006 - 4 . 2 1 14.7 0.0003 7 .41 6.7
62 Sm 144 - 0 . 2 2 8.3 0.39 +100, -50 -7 .92 11.5 0.031 10.63 0.27
147 -0 .56 7 .9 0.048 +150, -60 -10 .11 9 .4 0.63 6.42 18.
148 1.69 10.2 0.023 -7 .73 11.7 0.024 8.20 3 . 1
149 0.29 8.8 0.013 -9 .43 10.2 0.20 5 .91 29.
150 2.74 11.3 0.005 -6 .74 1 2 . 8 0. 005 8.04 3 .6
152 2.64 11.2 0.005 -5 .28 14.1 0.0008 8.32 2 . 8
154 3.24 11.7 0.003 -4 .10 15.4 0.0001 8.03 3 .7
63 En 151 - 0 . 7 1 7 .9 0.049 -7 .87 1 1 . 8 0.021 8.03 3.7
1 5 3 0.02 8.7 0.015 -5 .83 13.8 0.001 8.61 2 . 1
64 Gd 152 1. 05 9.7 0.050 -8 .07 11.9 0. 018 8.65 2 .0
154 1.20 9 .9 0.038 - 6 . 5 1 13.4 0.002 l 8.71 1.9
TABLJE VI (cont. )
64 Gd 155 - 0 . 5 4 8 .2 0.032 +150, -60 - 8 . 3 3 U . 7 0. 024 +80, -45 6.49 17. +70, -40
156 1.68 10.3 0.021 -5 .67 14.3 0.0006 8.59 2 . 2
157 0.58 9 .3 0.006 - 7 . 2 8 12.7 0. 006 6 .41 19.
158 2.67 11.4 0.004 - 5 . 1 6 14.8 0.0003 7.98 4 . 0
160 .3.64 12.4 0.0009 - 3 . 5 16.9 < 0.0001 7.50 6 .4
65 Tb 159 0.17 9.0 0.010 - 6 . 2 2 14 .1 0.0008 +80, -45 8.19 3 .2
66 Dy 156 - 0 . 5 2 8 . 3 0.42 +100, -50 - 8 . 2 6 12.3 0.010 9.50 0 .88
158 0.16 9 . 1 0 .13 +150, -60 - 7 . 3 3 13.3 0.003 9.12 1 .3
160 1.06 9 .9 0.039 - 6 . 8 2 13.7 0. 001 8.64 2 . 1
161 - 0 . 2 0 8.7 0.016 - 8 . 3 0 12.2 0. 012 6.49 17.
162 1.69 10.6 0.014 - 6 . 0 5 14.5 0.0005 8 .25 3 . 1
163 0. 91 9 .8 0. 003 - 7 . 2 3 13.3 0.003 6 .31 21.
164 2 .58 11.6 0.003 - 5 . 2 1 15.3 0.0002 7.70 5 .4
67 Ho 165 0.52 9.6 0.004 - 6 . 4 6 14.3 0.0006 8.04 3 . 9
68 Er 162 -0 .46 8.7 0 .23 +100, -50 - 8 . 4 9 12.5 0. 008 9.27 1 . 1
164 0.18 9 .4 0.083 +150, -60 - 7 . 7 6 13.3 0. 003 8 .91 1.6
166 1.08 10.3 0.022 - 7 . 0 9 13.9 0 .001 8.53 2 .4
167 0.19 9 .4 0.006 - 8 . 3 1 12.7 0.006 6.47 18.
168 2.00 11.2 0.006 - 6 . 2 6 14.7 0.0004 7 .82 4 . 8
170 2 .94 12 .1 0.002 - 4 . 5 8 16.4 < 0.0001 7 .31 8 . 1
69 Tm 169 - 0 . 4 3 8 .8 0.014 - 7 . 4 4 13.8 0. 001 +80, -45 8 .11 3 .7
o z
c H 7> O 2 >
S •pa > O 0 e
n H O 2
T A B L E VI (cont. )
( n , p) r e a c t i o n s ( n , a ) r e a c t i o n s (n 2 a ) r e a c t i o n s
Mass EX
(MeV) Eeff
(MeV) 0
(mb) w
OI
i
EX
(MeV) Eeff
(MeV) 5
(mb) A c / o m
EX
(MeV) 5
(mb) A5/o (%)
168 -0 . 50 8 .9 0.18 +100, -50 - 8 . 6 0 12.9 0.005 +80 -45 9 .11 1 .4 +70, -40
170 0.19 9.6 0.063 +150, -60 -8 .17 13.3 0. 003 8.52 2 .4
171 -0 .69 8.7 0.016 - 9 . 3 3 12.2 0.013 6.66 15.
172 1.09 10.5 0.017 - 7 . 3 1 14.2 0.0007 8.07 3 . 8
173 0.54 10.0 0.002 - 8 . 2 0 13.3 0. 003 6 .40 20.
174 2.29 11.7 0.003 - 6 . 4 1 15 .1 0.0002 7 .51 6 .7
176 3.38 12.8 0.0005 - 5 . 5 8 15.9 0.0001 6.92 12.
175 - 0 . 3 1 9 .2 0.008 -7 .87 13.8 0.001 7.70 5 .6
176 -0 . 90 8 .5 0 .33 +100, -50 - 8 . 4 9 13.2 0.003 6.33 22.
174 - 0 . 5 8 9.0 0.16 +100, -50 -9 .17 12.8 0.005 8.64 2 . 2
176 0.41 10.0 0.036 +150, -60 -8 .62 13.4 0.002 8.13 3 .7
177 - 0 . 2 9 9 .3 0.007 - 9 . 7 1 12.3 0.011 6.42 20.
178 1.48 11 .1 0.007 - 7 . 9 1 14.1 0.0009 7.67 5 .8
179 0.57 10 .1 0.002 - 8 . 6 8 13.3 0. 003 6.13 27.
180 2.53 12.2 0.001 -6 .86 15.2 0. 0002 7 .43 7 .4
180 - 1 . 7 1 8 .0 0.72 +100, -50 - 9 . 1 8 13.0 0.004 6.62 17.
181 0.24 10.0 0.003 +150, -60 - 7 . 4 1 14.8 0.0003 7 .69 5 .8
180 0.03 9 .8 0.049 - 8 . 8 6 13.6 0. 002 8.54 2 . 5
182 1.03 10.9 0.009 J - 7 . 8 9 14.9 0.0003 i
8.10 3 . 9
S a m p l e s
Element
70
7 1
72
73
74
Yb
Lu
Hf
Ta
O > t-> S í> 2 O
TABLJE VI (cont. )
74 W 183 0.29 10.1 0.002 +150 -60 -9 .09 13.6 0.002 +80, -45 6.23 25. +70 -40
184 2.26 12 .1 0.002 -7 .37 15.4 0. 0001 +80, -45 7 .45 7 .4
186 3.14 13.0 0.0004 - 6 . 3 9 16.4 < 0.0001 7.24 9 .2
75 Re 185 -0 . 35 9.4 0.006 - 8 . 2 8 14.4 0.0006 +80, -45 7.83 5 . 1
187 0.53 10.2 0.002 - 7 . 1 0 15.8 0.0001 7 .41 7 . 8
76 Os 184 -0 .68 10.4 0.020 - 9 . 7 1 13.2 0.003 8 .91 1 .8
186 0.30 10.3 0.024 - 9 . 0 2 13.9 0 .001 8 . 3 1 3 . 2
187 - 0 . 7 8 9.2 0.008 -10 .13 12.7 0. 007 6 .33 23.
188 1.34 11.3 0.005 - 7 . 8 9 15.0 0. 0003 8 .03 4 . 2
189 0.23 10.2 0.002 -9 .17 13.7 0.002 5 .95 33.
190 2 .41 12.4 0.001 -6 .84 16.0 0. 0001 7 .83 5 .2
192 3.19 13.2 0.0003 -5 .24 17.7 < 0.0001 7 .60 6.6
77 Ir 191 -0 .47 9.6 0.005 -7 .96 15.5 0.0001 +80, -45 8.16 3 . 8
193 0.35 10.4 0.001 -6 .64 16.5 < 0.0001 7 . 8 1 5 .4
78 Pt 190 - 0 . 1 1 10 .1 0.032 -9 .54 13.9 0.001 +80, -45 8 .86 1 .9
192 0.68 10.9 0.010 -8 .34 15 .1 0.0002 8 .70 2 . 2
194 1.46 11.6 0.003 - 7 . 2 8 16 .1 0.0001 8 . 4 1 3 .0
195 0.15 10.3 0.002 - 8 . 7 1 14.7 0.0004 6 .16 28.
196 2.40 12.6 0.0008 - 6 . 3 8 17 .1 < 0.0001 7 .96 4 . 7
198 3.64 13.8 0.0001 - 5 . 5 9 17.8 < 0.0001 7 .60 6 .7
79 Au 197 -0 .04 10.2 0.002 6 .98 16.4 < 0.0001 8 .12 4 . 0
sa o z z en C
O Z > S > O m Ö
9 o
n H O Z
TABLJE VI (cont. )
S a m p l e s ( n , p ) r e a c t i o n s ( n , o t ) r e a c t i o n s ( n , 2 n ) r e a c t i o n s
Element (MeV)
Eeff (MeV) (mb)
Aö/ö Wo) (MeV)
"•eff (MeV) (mb)
A 3 / 5 (MeV) (mb)
Aö/a W«)
80
81
82
83
Hg
T1
Pb
Bi
196 - 0 10 10.3 0.024
198 0 59 11.0 0.009
199 - 0 . 3 3 10.0 0.003
200 1 43 11.8 0.003
201 0 72 11.1 0.0005
202 2 73 13 .1 0.0004
204 3 74 14 .1 0.0001
203 - 0 . 29 10.2 0.002
204 -1 . 13 9 .4 0.096
205 0. 75 11.2 0.0005
204 - 0 . 02 10.5 0.019
206 0. 75 11.3 0.006
207 0. 65 11.2 0.0005
208 4. 23 14.8 < 0.0001
208 - 3 . 65 7 . 3 2 . 2
209 -0 . 14 10.5 0.001
210 -0 . 72 9 .9 0.046
+150, -60
+100, -50
+150, -60
+150, -60
- 8 . 2 5 15.0 0.0003
- 7 . 4 6 16.3 < 0.0001
- 8 . 7 3 15.0 0.0003
- 6 . 5 5 17.3 < 0.0001
- 7 . 8 9 15.9 < 0.0001
- 5 . 7 1 18.0 < 0.0001
-4 .46 19.2 < 0.0001
- 7 . 2 0
-7 .46
- 5 . 6 8
16.8
16.2
18.0
< 0.0001
0.0001
< 0.0001
CO 20 16 1 0 OOOl
-7 14 17 1 < 0 OOOl
-7 89 16 4 < 0 0001
-6 19 18 2 < 0 0001
10 58 14 1 0 001
-9 63 14 9 0 0003
11 88 12. 6 0. 008
+80, -45
+80, -45
+80, -45
+80, -45
+80, -45
+80, -45
+80, -45
8.79
8.34
6.68
8.07
6.26
7.79
7 .53
7.76
6.69
7 .58
8.44
8.12 6.77
7.40
6.94
7.49
4.62
2 . 1
3 . 2
17.
4 . 3
25.
5 .6
7 . 3
5 .8
17.
7 . 0
3 .0
4 . 1
16.
8 .5
13.
7 .8
130.
+70, -40
> 2 O
EXCITATION FUNCTIONS FOR CHARGED-PARTICLE-INDUCED NUCLEAR REACTIONS IN LIGHT ELEMENTS AT LOW PROJECTILE ENERGIES
J. LORENZEN, D. BRUNE Aktiebolaget Atomenergi, Studsvik, Sweden
ABSTRACT. This compilation of data should be useful in various fields of nuclear applications, with the emphasis on charged particle activation analysis. Activation analysis of light elements using charged particles has proved to be an important tool in solving various problems in analytical chemistry, e . g . those associated with metal surfaces. Scientists desiring to evaluate the distribution of light elements on the surface of various matrices using charged-particle reactions require accurate data on cross-sections in the MeV-region. Also, a knowledge of cross-section data and yield functions is of great interest in many applied investigations involving work with charged particles, such as radiological protection and health physics, material research, semiconductor material investigations and corrosion chemistry. The authors therefore decided to collect a limited number of data which find use in these fields. Although the compilation is far from being complete, it is expected to be of assistance in devising measurements of charged-particle reactions in Van de Graaff or other low-energy accelerators.
INTRODUCTION
It i s wel l known that n u c l e a r r e a c t i o n s with cha rged p a r t i c l e s a r e h indered by the r e p u l s i v e Coulomb i n t e r a c t i o n with the n u c l e u s . Thus , c h a r g e d - p a r t i c l e r e a c t i o n s with accep tab le y i e lds o c c u r only w h e r e low-or m e d i u m - w e i g h t nuc le i a r e involved. E l e m e n t s h e a v i e r than Z > 12 have t h e r e f o r e been omi t t ed f r o m th i s compi la t ion . The c e n t r a l p r o b l e m in ac t iva t ion ana ly s i s i s the iden t i f i ca t ion of a given nucl ide and a quant i ta t ive d e t e r m i n a t i o n of i t s concen t r a t i on in a m o r e o r l e s s complex m a t r i x . In th is connect ion it i s n e c e s s a r y to s e a r c h f o r spec i a l r e a c t i o n s which exclude compet i t ive p r o c e s s e s . Th is can be done, f o r example , by using s e l e c t e d bombard ing e n e r g i e s which lead to a s few compet i t ive r e a c t i o n s a s p o s s i b l e . Thus , r e s o n a n c e s in the exc i ta t ion funct ion have been used in o r d e r to obtain a dominant y ie ld f r o m the s e l e c t e d nucl ide , o r co inc idence m e a s u r e m e n t s with r e a c t i o n p r o d u c t s have been m a d e . Consequent ly , d i f f e r e n t i a l c r o s s -sec t ions have been included, w h e r e v e r they w e r e ava i l ab le , as well as i n t e g r a l c u r v e s . F u r t h e r m o r e , the compi la t ion conta ins v a r i o u s y ie ld c u r v e s .
In s o m e c a s e s the e m e r g i n g p a r t i c l e i s spec i f i ed with an index i . This denotes whe the r the l ight p roduc t is p roduced in the g r o u n d - s t a t e (0) o r in the i - t h exc i t ed s t a t e of the p roduc t nuc leus . The exci ted s t a t e s and the c o r r e s p o n d i n g g a m m a - r a y e n e r g i e s can be obtained fo r i n s t ance in: Nuc l ea r Da ta Shee t s , Nat ional Academy of S c i e n c e s , Nat ional R e s e a r c h Counci l , Washington, D . C . (1962).
W h e r e the v a l u e s f o r angu la r d i s t r ibu t ion a r e r e l a t e d to the c e n t r e - o f -m a s s s y s t e m th i s i s denoted by the index c . m . fo r the uni ts of the c r o s s -sec t ion in the g r a p h s . O t h e r w i s e the g r a p h s show va lues in the l a b o r a t o r y s y s t e m .
325
326 LORENZEN and BRU NE
The au tho r s a r e of the opinion tha t a d i a g r a m showing the shape of c r o s s - s e c t i o n s o r exc i ta t ion func t ions p rov ide s a m o r e r ap id and use fu l s o u r c e of i n f o r m a t i o n than do data f r o m t a b l e s . F o r th is r e a s o n , only d i a g r a m s of absolu te , n o r m a l i z e d e x p e r i m e n t a l va lues have been p r e s e n t e d , even in those i n s t a n c e s w h e r e t ab l e s w e r e p rov ided by the e x p e r i m e n t a l i s t s . Unif ied s y m b o l s and units (see below) have been used, and abbrev ia ted r e f e r e n c e s and c o m m e n t s have been included. The absolute e r r o r s as d e t e r m i n e d by the e x p e r i m e n t a l i s t s a r e shown in the d i a g r a m s .
Fol lowing the compi la t ion of g r a p h s , a l i s t of r e f e r e n c e s i s g iven which i s a r r a n g e d in P (number) fo r pro ton , D (number) for deu te ron , A (number) for alpha and H (number) for 3 H e - p a r t i c l e - i n d u c e d r e a c t i o n s .
In s o m e c a s e s t h e r e a r e s e v e r a l publ ica t ions conce rned with the s a m e r e a c t i o n . W h e r e the c r o s s - s e c t i o n was m e a s u r e d in d i f f e r e n t ene rgy r eg ions an a t t emp t was m a d e to f i t and n o r m a l i z e the d i f f e r en t r e s u l t s to a m e a n va lue at the point of i n t e r s e c t i o n . W h e r e i den t i ca l i n f o r m a t i o n was p r e s e n t e d by s e v e r a l au tho r s the choice was r e s t r i c t e d to that of the m o s t r e c e n t o r i g i n .
In m o s t c a s e s the c r o s s - s e c t i o n s co l lec ted fo r th i s compi la t ion a r e up to 20 MeV. To op t imize i r r a d i a t i o n condi t ions , it m a y be n e c e s s a r y to know whe the r the c r o s s - s e c t i o n i n c r e a s e s at h igher e n e r g i e s o r whe the r the r e s o n a n c e f o r the r e a c t i o n conce rned i s a l r e a d y exceeded at low bom-bard ing e n e r g i e s . Unfor tuna te ly , t h e r e a r e only v e r y few m e a s u r e m e n t s fo r r e a c t i o n s induced by cha rged p a r t i c l e s at h ighe r e n e r g i e s . T h e r e f o r e , a r e q u e s t was m a d e to H. Miinzel at the K e r n f o r s c h u n g s z e n t r u m K a r l s r u h e fo r p e r m i s s i o n to publ i sh p a r t s of the s y s t e m a t i c s tudy made by h im and his c o - w o r k e r on e x p e r i m e n t a l c r o s s - s e c t i o n s f o r c h a r g e d - p a r t i c l e - i n d u c e d r e a c t i o n s at h igher e n e r g i e s . 1 We r e c e i v e d the kind p e r m i s s i o n to s e l e c t f r o m th i s r e p o r t the p a r t s of i n t e r e s t . This r educed v e r s i o n i s given in Appendix l .2
( p , 7 ) r e a c t i o n s exhibi t s e v e r a l r e s o n a n c e s in the MeV reg ion . T h e s e r e s o n a n c e s a r e of spec i a l i n t e r e s t in c h a r g e d - p a r t i c l e ac t iva t ion a n a l y s i s . F o r c a l i b r a t i o n p u r p o s e s and depth d i s t r ibu t ion s tud ie s of l ight e l e m e n t s in heavy m a t r i c e s , t h e s e s h a r p r e s o n a n c e s can be used f avourab ly . In m o s t of the c a s e s the shape of the r e s o n a n c e s i s not so i m p o r t a n t as the c h a r a c -t e r i s t i c da ta , such as pos i t ion ( r e sonance e n e r g y in keV), r e s o n a n c e width (FWHM in keV) and height ( c r o s s - s e c t i o n in mb) . T h e r e f o r e , a r e q u e s t was m a d e to J . W . B u t l e r , U . S . Naval R e s e a r c h L a b o r a t o r y , Washington, D . C . , fo r p e r m i s s i o n to publ i sh the s y s t e m a t i c co l lec t ion m a d e by him on (p, 7 ) - r e s o n a n c e s 3 (see Appendix 2).
In Tab le A2-I , the c r o s s - s e c t i o n given i s the to ta l c r o s s - s e c t i o n in m i l l i b a r n s at the r e s o n a n c e peak . W h e r e m o r e than one p r i m a r y g a m m a ray i s emi t t ed , the t abu la ted c r o s s - s e c t i o n va lue is the s u m of a l l such individual p r i m a r y g a m m a - r a y c r o s s - s e c t i o n s . F o r those r e s o n a n c e s which a r e too n a r r o w f o r such c r o s s - s e c t i o n m e a s u r e m e n t s , the i n t eg ra t ed
1 LANGE, J . , MUNZEL, H . , Estimation of Unknown Excitation Functions for ( a , xn)- , ( a , p x n ) - , (d .pxn) - , and (p,xn)-React ions, Rep. KFK-767 (1968).
2 A more comprehensive compi la t ion is published in Landolt-Börnstein, New Series 1/5, Vol. a , Q-Values; Vo l .b , Excitation Functions for Charged Particle Induced Nuclear Reactions, Springer Verlag (1973).
3 BUTLER, J . W . , Tab le of (p , y) Resonances, Rep. NRL-5282 (Apr. 1959).
CHARGED-PARTICLE NUCLEAR EXCITATION FU NCTIONS 327
c r o s s - s e c t i o n , JadE, has been tabula ted w h e r e th is m e a s u r e m e n t has been m a d e . In t h e s e i n s t a n c e s , the abbrev ia t ion "evb" fo r " e l e c t r o n - v o l t b a r n " has been i n s e r t e d in the c r o s s - s e c t i o n column.
As f a r a s the g a m m a e n e r g i e s a r e concerned , only the m o s t p r e d o m i -nant ones have been compi led in Tab le A2-I . A ques t ion m a r k m e a n s doubt about the n u m b e r .
F ina l ly , Appendix 3 i s a Bib l iography l i s t ing pub l ica t ions containing v a r i o u s da ta for c h a r g e d - p a r t i c l e - i n d u c e d r e a c t i o n s .
A C K N O W L E D G E M E N T
The au tho r s wish to e x p r e s s t h e i r g ra t i tude to the v a r i o u s c o n t r i b u t o r s to th i s compi la t ion , e spec i a l l y to D r . McGowan of the Data C e n t r e at Oak Ridge , T e n n e s s e e .
GRAPHS O F EXCITATION FUNCTIONS
Conventions and s y m b o l s
total c r o s s - s e c t i o n
exci ta t ion funct ion
angu la r d i s t r i bu t ion
d i f fus ion c r o s s - s e c t i o n fo r 0°
c e n t r e - o f - m a s s s y s t e m
l a b o r a t o r y angle of m e a s u r e m e n t in angu la r d i s t r i bu t ions
ene rgy in l a b o r a t o r y s y s t e m
s u b s c r i p t s r e f e r to p r o t o n
s u b s c r i p t s r e f e r to deu te ron
s u b s c r i p t s r e f e r to h e l i u m - 3
s u b s c r i p t s r e f e r to a lpha p a r t i c l e
g r o u n d - s t a t e
exci ted s t a t e
r e s i d u a l nuc leus l e f t in exci ted s t a t e
(p ,p ' ) i n e l a s t i c p ro ton s c a t t e r i n g
dpm d i s i n t e g r a t i o n s p e r minu te
a
o, exc dg d n
c. m .
0
E
P
d
a
g r . St.
P Y P fit
3 2 8 LORENZEN and BRU NE
P R O T O N
Reac t i on C r o s s - s e c t i o n
and angu la r d i s t r ibu t ion E n e r g y r a n g e
(MeV) P a g e
1. 7 L i ( p , n ) 7 B e a (0°) 3 - 1 3 329
2. 7 L i ( p , a ) 4 H e CT (90°, 120°) 0. 5 - 2 . 3 330
3. 1 B e ( p , 7 ) 8 B <7 1 - 3 . 5 330
4. 9 B e ( p , a ) 6 L i dCT df2
6 - 1 1 . 5 332
5. 1 0Be(p, 7 ) 1 1B er (0°, 90°) 0 - 6 334
6. 1 0 B ( P , T ) U C er (90°) 3 - 1 7 334
7. n B ( p , 7 ) 1 2 C a . & (90») 1 - 14 335
8. 1 2 C(p ,7 ) 1 3 N CT 0 - 2 . 2 337
9. 1 3 C(p ,n ) 1 3 N er; er (5°, 40°) 3 - 1 4 337
10. U N ( P , 7 ) 1 5 0 a (90°) 2 - 19 339
1 1 . 1 5N(p, n ) 1 5 0 CT; CT (5°, 40°) 4 - 1 4 340
12. 1 8 0(p , p ' ) 1 8 0 * CT (0°) 3 . 2 - 5 . 4 341
13. l s O ( p , a ) 1 5 N a (0») 3 . 2 - 5 . 4 342
14. 19 t - , , v l 6 „ F(p,<*) O der
ff; d ñ 4 - 1 2 342
er (70°, 165°); % 9 - 1 2 343
15. 1 9 F ( P j o 7 ) 1 6 0 r e l a t i v e yield 0 - 5 . 6 347
CHARGED-PARTICLE NUCLEAR EXCITATION FUNCTIONS 3 2 9
Reaction 1, Ref. P1
7 U ( p , n ) 7 Be
8 9 10 11 12 13
E p ( M e V )
Reaction 14, Ref. P12 Reaction 14, Ref. P12
3 3 0 LORENZEN and BRUNE
7 L ¡ (p , cc) 4He
E p ( M e V )
Reaction 2, Ref. P2
7 B e ( p , Y ) ®B
Ep (MeV)
Reaction 14, Ref. P12 Reaction 14, Ref. P12
CHARGED-PARTICLE NUCLEAR EXCITATION FUNCTIONS 331
Ref. P4
9 B e ( p , d 0 ) 8 B e
Ref. P4
332 LORENZEN and BRUNE
9 Be+p
E p ( M e V )
Ref. P4
9Be (p,a) 6L¡
Ep(MeV)
Reaction 14, Ref. P12 Reaction 14, Ref. P12
CHARGED-PARTICLE NUCLEAR EXCITATION FUNCTIONS 333
. a E
ö|C! T3IX1
( . 0
2.0
10.
4.0
2.0
1. 0,
«.o
2.0
1.0
4.0
2.0
1.0
0.5
9 Be(p .a 0 ) 6 L¡ i 1 1 r
60 90 120 150 180
0 c m.
-Q £
o i c : •OITJ
9 B e ( p , a 0 ) 6 L ¡ "I r~ Ep « 10 MeV
150 180
Reaction 4, Ref. P4
9Be(p.a,)6Li*(2.18)
_ J i i i i 30 60 90 120 150 160
9 r m
Reaction 14, Ref. P12 Reaction 14, Ref. P12
334 LORENZEN and BRUNE
1 0 B e ( p , V o > 1 1 B
E p ( M e V )
Reaction 5 , Ref. P5
1 0 B ( P , Y O > 1 ' C
E p ( M e V )
Reaction 14, Ref . P12 Reaction 14, Ref. P12
CHARGED-PARTICLE NUCLEAR EXCITATION FUNCTIONS 335
n B ( p , V o ) , 2 C
Reaction 7 , Ref. P7
" B I P V V
Reaction 14, Ref. P12 Reaction 14, Ref. P12
3 3 6 LORENZEN and BRUNE
E p ( M e V )
Reaction 7, Ref. P7
Reaction 14, Ref. P12 Reaction 14, Ref. P12
CHARGED-PARTICLE NUCLEAR EXCITATION FUNCTIONS 3 3 7
, 2 C ( 1 , 3 N
Ep(MeV)
Reaction 8, Ref. P8
1 3 C(p,n) 1 3 N gr.st.
Ep (MeV)
Reaction 14, Ref. P12 Reaction 14, Ref. P12
3 3 8 LORENZEN and BRUNE
50
jO
1 30 b|G
•DTO
20
10
3 4 5 6 7 8 9 10 11 12 13 H
Ep (MeV)
Reaction 9, Ref. P9
1 3 C(p ,n ) 1 3 N
30
~ 2 0 in
E
O i G x j | T 5
10
C(p,n) N
THRESHOLD J I I I I I
3 4 5 6 7 8 9 10 11 12 13 H
Ep(MeV)
Reaction 14, Ref. P12 Reaction 14, Ref. P12
CHARGED-PARTICLE NUCLEAR EXCITATION FU NCTIONS 339
LORENZEN and BRUNE
E p ( M e V )
Reaction 11, Ref. P9
1 5 N (p ,n) 1 5 0 gr. st.
240
220
200
180
160
2 140
Ê. 120 b 100
80
60
40
20
0 2 4 6 8 10 12 14
E p ( M e V )
- i — i — | — i — r i 1 — r
THRESHOLD
J i I I I i ! i L
Reaction 11, Ref. P9
CHARGED-PARTICLE NUCLEAR EXCITATION FUNCTIONS 341
15. . . N ( p , n ) 0
30 1 1 T 1 1 1 T 11 1 H r
ft e » 4 0 ° 2 0 \ n -
(/) 2 0
i \ h J3 E
b i c ; •OITJ A 10 I / Vo
THRESHOLD i i i i i
3 Í 5 6 7 8 9 10 11 12 13 U
Ep (MeV)
Reaction 11, Ref. P9
,80(p, p' )180*
Ep(MeV)
Reaction 14, Ref. P12 Reaction 14, Ref. P12
342 LORENZEN and BRUNE
1 8 0 ( p , t f t 2 ) 1 5 N *
Reaction 13, Ref. P12
1 8 0 ( p . < £ 3 ) 1 5 N *
Ep ( MeV)
Reaction 13, Ref. P12
, 9 F ( P , « O ) , 6 O
Ep ( M e V )
Reaction 14, Ref. P12 Reaction 14, Ref. P12
CHARGED-PARTICLE NUCLEAR EXCITATION FUNCTIONS 343
" f W O
 it. ! 4 i ) i ;
i î 165° lab.
7 0 ° lab.
12.0
2 . 0
— 1.5
ä 1 .0 •o
0 .5
1 9 F ( p,oto - I 1
*• 3 rdS.4 ,h EXCITED i \ STATE GROUPS
st nd V»— 1 4 2 EXCITED . " i , » STATE GROUPS^; 1 | \
l a o 1 0 5 11.0 11-5 12.0
E p ( M e V )
R e a c t i o n 1 4 , Ré f . P 1 2 Reac t ion 1 4 , R e f . P 1 2
, 9 F ( p , a 0 ) ' 6 0
0 20 40 60 30 tOO 120 K0 160 ISO
9 r i n
Ci P 0.6
T T Ç - I r - i 1 r
0 20 40 60 80 100 120 140 160 180
® c . m .
Reac t ion 1 4 , Re f . P 1 2 Reac t ion 1 4 , R e f . P 1 2
344 LORENZEN and BRUNE
i — r
I 9 F(P,«Q) I 6 0 T 1 1—1 1
E p : 5.080 MeV
\ A \ \ \
_l I ' I I 0 20 (0 60 80 100 120 RO 160
1.8 t
1.6 -
1.1 -
1.2 -
S 1.0-
.O
JÊ 0.0 • c* •o - 0.6. "O
0.4 •
0 . 2 •
\
F ( p , « o ) 0 1 — I — i — r
Ep= 5.520 MeV
\ A * y J I I I L.
0 20 ¿0 60 100 120 H0 160 ISO
Reaction 14, Ref. P12 Reaction 14, Ref. P12
19_. .16-F ( p , « 0 ) O , 9 F ( P , « O ) , 6 0
100 120 140 160 B0
Reaction 14, Ref. P12 Reaction 14, Ref. P12
CHARGED-PARTICLE NUCLEAR EXCITATION FUNCTIONS 345
19 c i l , 6 n F ( p, «o ) o 19F( p,Oo) ,60
E p = 7.400 MeV
0 20 40 68 80 IOO 120 HO 160 180
9c .m.
Reaction 14, Ref. P12 Reaction 14, Ref. P12
I9 C , ,16n R p , * o ' 0
- J T — i — i — i — i — i — i — r
\ Ep= 8.000 MeV
[
_l L J L. 0 20 40 60 «0 100 120 140 160 180
0.9
0.8
0.7
0.6
V) 0.5 n 0.5
E w 0.4 « T3
b 0.3 •D
0.2
0. 1
F ( p,»i0) 0 ., r 1 1 1 1 f 1
E p = 8.500 MeV
—
1 _
V s 1 _
- / -1 1
V ; i i i i . .
0 2 0 40 60 80 100 120 140 160 180 e „ „
Reaction 14, Ref. P12 Reaction 14, Ref. P12
346 LORENZEN and BRUNE
1.0
0.8
43 0.6 E
b •o
0.4
19_, . 16„ F ( p , a 0 ) 0
"1 1 — I 1 1 1 — i — r
i Ep = 9.000 MeV
A
• 1 \ V v J L J J i i i i i
0 20 ¿0 60 80 100 120 KO 160 180
9 . „
9 F ( p,«,,)1^ 0.8
0.7
0.6 -
0.5 -
•o O.Af-£
i " l
C i i — i — i — i — i — i — r
A
b X)
0 . 2 | -
Ep =10.000 MeV
V
tí [ W
A
V J 1 I I L_ J L.
0 20 40 60 80 100 120 110 160 180
e, c.m.
Reaction 14, Ref. P12 Reaction 14, Ref. P12
, 9 F ( p , « o i , 6 0
« T3
I 0.5
1 — I — i — i — i — r
Ep = 11.000 MeV
A \A / v " \ ; i i i i m i i t—
0 20 40 60 80 100 120 140 160
e, „
^ ( p . a J ^ O
0 20 40 60 80 100 120 140 160 B0
Q e m.
Reaction 14, Ref. P12 Reaction 14, Ref. P12
CHARGED-PARTICLE NUCLEAR EXCITATION FUNCTIONS 347
18
16
U V) A a. • 12 <n E E 10 A O o 8
"3 £ 6 Ol >
« 4
tx. 2
0
M I I I I I I I I I I I I I I I i
e =o°
1 9 F ( p ^ v V 6 0
I I I
Reaction 15, Ref. P13
•a r & • a C. a. <
09
« in -
100-
9 0 -
8 0 -
7 0 -
60 -
5 0 -
40 -
30 -
2 0 -
10 •
i r i r
• G A M M A - R A Y Y I E L O
-I-ALPHA-PARTICLE YIELD
9 = 138°
19F(p,otV)160 "i 1 r
o i — 8 6 0 870 880 890 900 910 920 930 940 950 960 970
E p ( k e V )
Reaction 14, Ref. P12 Reaction 14, Ref. P12
348 LORENZEN and BRU NE
DEUTERON
„ ,. C r o s s - s e c t i o n E n e r g y r ange _ Reac t i on , , ,, , Page and angu la r d i s t r i bu t ion (MeV)
1. 9 B e ( d ) 7 ) n B CT 0 . 5 - 3 . 5 349
2. 10B(d, n) 1 1C ct; ct(0); ^ 3 - 9 350
ct 5 - 12 352
3. n B ( d , n ) 1 2 C CT (0°) 0 . 6 - 3 352
4. u B ( d , 2 n ) n C CT 8 - 18 353
5. 1 2 C(d ,p ) 1 3 C CT(0) 5 - 10 354
cr (30°) 1 - 9 358
6. 1 2 C(d ,n ) 1 3 N CT 1 - 4 . 5 ; 1 - 1 2 ; 358 4 - 1 9
7 - 12 360 do d í í
7. C fd ,» ) B CT(0) 5 - 10 361
8. 1 4 N(d,p) 1 5 N CT 1 .0 - 3 . 5 363
9. 1 4 N ( d , n ) 1 5 0 CT; g(0); ^ 1 - 5 . 5 363
10. l e O ( d , n ) 1 7 F CT; CT(0) 2 . 5 - 4 . 5 366
11. 1 6 0 ( d , ö ) 1 4 N ct(0) 4 - 5 . 3 ; 3 - 15 368
ct(0) 3 - 5; 9 - 15 371
5 . 7 - 11 373 dg dQ
12. Ne(d, p) Ne CT (30°, 150°) 0 . 8 - 2 .6 375
^ r 1 . 4 - 2 . 4 376
CHARGED-P ARTICLE NUCLEAR EXCITATION FUNCTIONS 349
9 B e ( d , Y o ) 1 1 B
Reaction 1, Ref. D1
9Bé(d,"V,J V
E d (MeV)
Reaction 10, Ref. D9 Reaction 10, Ref. D9
350 LORENZEN and BRUNE
9 « I j . " r , * Be ( d, Y2+3' B
E d (MeV)
Reaction 1, Ref. D1
1 0 B(d ,n ) 1 , C
E d (MeV)
Reaction 10, Ref. D9 Reaction 10, Ref. D9
CHARGED-P ARTICLE NUCLEAR EXCITATION FUNCTIONS 3 5 1
, 0 B(d , n ) 1 l C
® e.m.
Reaction 10, Ref. D9 Reaction 10, Ref. D9
352 LORENZEN and BRUNE
, 0 B ( d , n ) " c
Ed ( MeV )
Reaction 2, Ref. D3
11B(d,n)12C
E d (MeV)
Reaction 10, Ref. D9 Reaction 10, Ref. D9
CHARGED-PARTICLE NUCLEAR EXCITATION FU NCTIONS 729
11B(d,2n)11C
Ed (MeV)
Reaction 4, Ref. D3
354 LORENZEN and BRU NE
1 2 C ( D , P 0 ) 1 3 C
Reaction 5 , Ref. D 4
CHARGED-PARTICLE NUCLEAR EXCITATION FU NCTIONS 355
, 2 c ( d , P l ) V
Reaction 5, Ref. D4
356 LORENZEN and BRU NE
Ed (MeV)
Reaction 5, Ref. D4
CHARGED-P ARTICLE NUCLEAR EXCITATION FUNCTIONS 357
, 2 c ( d , p 3 ) V
E d (MeV)
Reaction 10, Ref. D9 Reaction 10, Ref. D9
358 LORENZEN and BRUNE
12C(d,p0)13C < I • • I I I I I I I I I I I I I I I I I I I I I I I I I j I I II I I I I I j I I I I I M I I I I I
9 = 30°
Reaction 5, Ref. D5
1 2 C(d ,n ) 1 3 N
•Q £
Reaction 10, Ref. D9 Reaction 10, Ref. D9
CHARGED-P ARTICLE NUCLEAR EXCITATION FUNCTIONS 3 5 9
, 2 C ( d , n 0 ) 1 3 N
E d ( M e V )
Reaction 6 , Ref. D5
E d ( M e V )
React ion 10, Ref . D9 Reaction 10, Ref. D9
360 LORENZEN and BRU NE
1 2C{d,n0 ) , 3N p - r - p r
60 90 120 150 0 20 40
öc.m.
Reaction 6, Ref. 0 5
CHARGED-P ARTICLE NUCLEAR EXCITATION FUNCTIONS 3 6 1
1 2C( d ,a o ) 1 0 B
Reaction 10, Ref. D9 Reaction 10, Ref. D9
362 LORENZEN and BRU NE
, 2 C ( d , a / ° B *
E d (MeV)
Reaction 7, Ref. D4
CHARGED-P ARTICLE NUCLEAR EXCITATION F U N C T I O N S 363
React ion 8 , Ref . D 7
U N ( d , n ) ' 5 0 40
35 _ 1 1 i i i
30 - -
25 - / j x
.a 20 / E
b 15
10 -/ / -
5
0
r i i i i i Ol 1 1 1 1 I
0 1 2 3 4 5 6
E d ( MeV)
Reac t ion 9 , Ref . D 8
u N ( d , n ) 1 5 0
E d ( M e V )
R e a c t i o n 10, Ref. D9 Reaction 10, Re f . D9
364 LORENZEN and BRU NE
U N ( d , n ) 1 5 0 " N ( d , n ) , 5 0
Reaction 9, Ref. D8
CHARGED-PARTICLE NUCLEAR EXCITATION FU NCTIONS 3 6 5
1 4 N ( d , n ) 1 5 0
6 l a b
Reaction 9 , Ref. D 8
366 LORENZEN and BRUNE
, 6 0 ( d , n ) 1 7 F *
300
200
E
100
2.5 3.0 3.5
E d ( M e V )
4.0 4.5
Reaction 10, Ref. D9
" o i d . n ^ F
40-
30
11111111111111 » 11 ' 111111111
40®
0
— 4 0
in 30 -
I 2 0 -
0 25
1 15
10
5
0
J L
20°
0"
J I k J .
J L-
I t I I I I I t I t t I I I I I I I I I I I I t'.l | 2.0 2.5 3.0 3.5 4:0 4.5
E¿ (MeV)
15
10
5
0
_ 20
¡ñ 15
1 101
80°
0
30
20
10|
0
1 6 0 ( d , n ) 1 7 F TTTTTTfTTI r [ r i 11 [ m i 1 I I I I 11
Ü0°
V 1 1
' \ -1
_
- V -
, 1 , . , , 1 , , , É1 1 1 11 1 11 I 1 1 1 l'sJ 1 ZO 2.5 3.0 3.5 4.0 45
Ed ( M e V )
Reaction 10, Ref. D9 Reaction 10, Ref. D9
CHARGED-P ARTICLE NUCLEAR EXCITATION FUNCTIONS 367
, 6 0 ( d, n ) 1 7F
25 -1 1 1 1 M 1 1 I I 1 1 1 ' M 1 1 M 111 i ' ' f r
20 - 160° -
15 • /WW 10
- / ' ^ \A * 5 - 1J V • -n 1 1 1 1
20
15
10
5
0
15
10
5
0
H 0 °
1 » 1 1 1 1
- -
\20°
i 1 i 11 i 1 i i i 1J 1 1 1 1 1 1 1 1 / " \ -
1 i M\.l 1 2.0 25 3.0 3.5 4.0 4.5
E d I M e V )
1 6 . , , ,17,-* 0 (d,n, ) F
30
20
10
0
75
¡5 50 JQ £ 20 b
0
200
150
100
50
0
I I I M i i i i i i I j II I I I I I I I [ I
- 40°
J I i i I
20°
-I L_l_
2.5 3.0 3.5 4.0
E d ( M e V )
15
10
5
0
15
10
5
0
IS
10
5
0
Reaction 10, Ref. D9 Reaction 10, Ref. D9
' 6 0(d ,n , ) , 7 F * 1 60(d,n, ) 1 7F*
_i i i i i i i i i i i i i i M i i i i i i i i .
100° < 15 11 1 M i i i i i i i i M i i 11 i i i i i
" 160° \ À 10
1 1 1 1 V 1 5 v / v / ^ . .
0 i i i i v j
80°
J L J h - L
- 60® . - A
J . 1 I 1 1 1 1 I 1 L I 1 1 1 1 1 1 1 1 i-'l 1 1 2.5 3.0 3.5 4.0 4.5
E d ( M e V )
i i r 140°
~ 15 in j3 10 E
b 5
0
15
10
5
0
i 1 r q
I V-L
1 \ 1 1 ' 1 -120° \ —
1 . 1 , , I
25 3.0 3.5 4.0 4.5
E d ( MeV)
Reaction 10, Ref. D9 Reaction 10, Ref. D9
368 LORENZEN and BRUNE
" b ( d , « ) U N
so . o £
•ofê 30 -
-J L J U 30 60 90 120 150 180
e Reaction 11, Ref. D10
Reaction 11, Ref. DIO
16 H O l d , « ) N
30 60 90 120 150 180
e
Reaction 11, Ref. DIO
CHARGED-P ARTICLE NUCLEAR EXCITATION FUNCTIONS 369
, 6 0 ( d , < x , ) V
t/>
E
t>|C! tdITJ
3 4 5 6 7 8 9 10 II IZ 13 14 15
E d ( M e V )
R e a c t i o n 1 1 , R e f . D 1 1
1 . 5 " i — i — i — i — i — i — i — i — i — i — i — i — r
160(d,a,)uN
% m * 3 0 °
I . O
n
4
4
Û\\ : f
t 4
i -
\ t
V , /
0.0
V
I I I I
v.'
J\
3.0
A 1 1 1 1 1 1 1 1 1 1 FT»A/LF->Y * ^
3.5 4 .0 4.5 5.0
E d ( M e V )
Reaction 10, Ref. D9 Reaction 10, Ref. D9
370 LORENZEN and BRUNE
3 . 0
2.0 . a e
b i a XJlTJ
1 . 0
, 6 0 ( d ( a ( ) U N *
I I I I I I I I I I j I I j I I I I j
*
f \ f .
+ A
t
i t I i * f \ I
r.'
0.0 /
il I I
W
Q C J T T
J — I I I I I I I I 1 I >
3.0 3.5 LO
E d (MeV)
4 .5 5 . 0
Reaction 11, Ref. D11
1 6 0 ( d , o c ) U N *
E d (MeV)
Reaction 10, Ref. D9 Reaction 10, Ref. D9
CHARGED-P ARTICLE NUCLEAR EXCITATION FUNCTIONS 3 7 1
Old , * , ) N
1000
5 0 0
XI i
b | C ! 5 0 0
1000
5 0 0
11 i J
,.v / !
— i
i
i •W* V 1 A A
V v v r>tv
' k • —
e<
A J
5 ° J
,.v / !
— i
i
i
/ f
e c . m . « » 0 O
'A .'
h j 1 ' ^ i 1 i
'• »V A ¿
••/V
ï
* t • • V
i 4.
/ ' \
f
; : ' W
i . \ e c.m. = 13
i
a L
/-I > -i . .NK e c.m. =90 . 3 °
'"S i» J
V ~ > > > \ /i
; V J
i1 % A /
t
• 6« :.m. =47 4 °
j! ! ¡
i i i •
A
/ W k i
\J
H K
' l A - f i
^ i
M
V > v
e c.m. = 30 >
/ W í V
i I J V
A
/ W k i
\J
H K
' l A - f i
^ i
M
V > v
\ ^
1000
500
5 0 0
500
50 5.5 60 6.5 70 7.5 8.0 85 9.0
E d ( MeV)
Reaction 11, Ref. D11
372 LORENZEN and BRU NE
®c. m.
Reaction 12, Ref. DI 2
CHARGED-P ARTICLE NUCLEAR EXCITATION FUNCTIONS 373
160(d/»,)MN*
Reaction 11, Ref. D11
3 7 4 LORENZEN and BRU NE
1 6 0 ( d , « | ) t t N * 1 ®0(d ,a , ) t t N*
Reaction 12, Ref. DI 2
CHARGED-PARTICLE NUCLEAR EXCITATION FUNCTIONS 375
20Ne(d,p)2Vle
E d (MeV)
Reaction 12, Ref. D12
20Ne(d,p)21Ne
E d ( MeV )
Reaction 12. Ref. D12
LORENZEN and BRUNE
1.40 MeV J I
1.50 MeV i I
1.60 MeV -J I
n r
1.71 MeV J I
1.92 MeV i i
120 150 180
2 0 . . , . . 2 1 . . Neid,p0) Ne
150 180
Reaction 12, Ref. D12
CHARGED-P ARTICLE NUCLEAR EXCITATION FUNCTIONS 377
E d (MeV)
Reaction 12, Ref. D12
378 LORENZEN and BRU NE
^ N e í d , p , ) 2 W *
0 30 60 SO 120 150 180 0 30 60 90 120 150 1B0
© c . m . ® c . m .
Reaction 12, Ref. DI 2
CHARGED-P ARTICLE NUCLEAR EXCITATION FUNCTIONS 379
ALPHA
_ .. C r o s s - s e c t i o n E n e r g y r a n g e „ R e a c t i o n 6 P a g e and a n g u l a r d i s t r i b u t i o n (MeV) 5
a da 1. L i + a — 10; 1 2 . 5 380
d u 2. 7 L i ( a , n ) 1 0 B a; a (0°) 4 - 8 381
4 . 8 - 7 . 8 382 der dQ
3. 9 B e ( « , n ) 1 2 C a; a (0°) 1 . 6 - 6 . 4 383
^ (0°) 0. 34 - 0. 7 384
d a dfi 3. 2 - 6 . 4 385
4. S Be(f f , 2n ) 1 1 C a 24 - 38 389
5. 1 3 C ( a , n ) 1 6 0 a 2 - 5 . 3 389
6. 1 6 0 ( a , n ) 1 9 N e a 6 - 1 7 . 5 390
7. 2 0 N e ( a , n ) 2 3 M g a 11 - 28 390
380 LORENZEN and BRLJ NE
6 U + « fe1 I 1 I 1 I 1 I 1 I 1 M I 1 I 1 á
E a r lO.OOMeV
E
oie; Til-a
10' U
io" y
10 l i l i I I ' I l l ' 0 20 40 60 80 100 120 140 160 180
9c.m.
Reaction 1, Ref. A1
0 cm.
Reaction 17, Ref. H12
CHARGED-P ARTICLE NUCLEAR EXCITATION FU NOTIONS 381
7 L i (« ,n ) 1 C b
Reaction 2, Ref. A2
7 L i ( a , n ) 1 0 B
E a (MeV)
Reaction 17, Ref. H11
382 LORENZEN and BRLJ NE
7 Li (a, n„)10B
150 180
7L¡ (a,no )1 0B
e c . m .
(For clarity some curves have been raised by the number in mb/sr in brackets.)
Reaction 17, Ref. H12
CHARGED-PARTICLE NUCLEAR EXCITATION F U N C T I O N S 383
7 .10 * Li K n , ) B
20
1 8
16
i i I i i I i i
t 1 4 1 = — r
V)
! 3 E
b i a T3lT3
12
10
8
6
4
2
— - Ï -
7 .85 MeV ( - 1 4 ) 1
- Ï - J 7 . 5 3 M e V ( - 9 )
' • I 1 I I 1 1 I 1 _ 1
4 - H 7,21 M e V ( - 6 )
f ¡ 6 . 9 6 M e V i - 2 )
' 1 i J 6 . 7 1 M e V
I • i I • I I I 0 3 0 6 0 9 0 120 150 180
6 c . m .
(For clarity some curves have been raised by the number in mb/sr in brackets.)
Reac t ion 2 , Ref . A 2
9Be(«,n) 1 2C r ~ i — i i i i i
2 .0 3 .0 4 . 0 5 . 0
E a (MeV)
Reac t ion 3 , Ref . A 3
384 LORENZEN and BRUNE
9Be(<x,n)12C
Reaction 3, Ref. A3
E „ (KeV)
Reaction 3, Ref. A4
CHARGED-P ARTICLE NUCLEAR EXCITATION FUNCTIONS 3 8 5
9 B e ( a , n 0 ) l 2 C
® lab
Reaction 3, Ref. A3
386 LORENZEN and BRUNE
9 c / > 1 B e t o . n , ) C 4 _ 4 4
40
0 80
V) 4 0 JQ E 0
b|CX 80 Tarn
4 0
0 8 0
4 0
' l a b
Reaction 3 , Ref. A 3
CHARGED-P ARTICLE NUCLEAR EXCITATION FUNCTIONS 387
Be ( a , n 2 ) C 7
® lab
Reaction 11, Ref. H7
388 LORENZEN and BRUNE
I
in
í 0 ¡ E
Sfê 5
H - H s : 4 ! -
3
2
9 B e ( a , n 3 ) 1 2C ; . 6 4
EQ= 6 .44 MeV
EQ= 6 .24 MeV
15 _ L
30 45
9 lab
6 0 75 9 0
Reaction 3 , Ref . A 3
CHARGED-P ARTICLE NUCLEAR EXCITATION FUNCTIONS 3 8 9
9 BeU,2n ) 1 1 C
Ea (MeV)
Reaction 4 , Ref. A 5
1 3C(a,n) 1 60
E a ( M e V )
Reaction 5, Ref . A 6
390 LORENZEN and BRLJ NE
, 6 0 U , n) ,9Ne
Reaction 6, Ref. A7
20 „ , ,23.. Nein, n) Mg
E a ( MeV)
Reaction 17, Ref. H12
CHARGED-P ARTICLE NUCLEAR EXCITATION FUNCTIONS 3 9 1
HELIUM-3
R e a c t i o n C r o s s - s e c t i o n a n d a n g u l a r d i s t r i b u t i o n
E n e r g y r a n g e (MeV) P a g e
1. 3 H ( 3 H e , n ) 5 L i dcr mo díT; CT(0 40°) 1 - 4 392
2 . 7 L i ( 3 H e , t ) 7 B e a (30°) 2 - 4 393 da dfi 3; 3 . 5 ; 4 393
3 . 7 L i ( 3 H e , a 6 L i a (40°) 2 - 4 394
4 . 9 B e ( 3 H e , n ) n C CT 3 - 1 0 394
5. 9 B e ( 3 H e , t 9 B a (40°) 2 . 5 - 4 394 d a dfi 3 - 3 . 8 395
6 . i o B 3 H e , p 12C a (90°, 150°) 11 - 18 396
7 . i o B 3 H e , d n C a (150°) 11 - 19 396
8. 10 B 3 H e , a 9 B a(fl) a(fl)
2 - 1 9 9 - 1 9
397 398
9. i o B 3 H e , n 12N CT 1 - 7 399
10. 1 0 B 3 H e , t t 9B a(fl) der df i
2 - 1 0
3 . 4 - 9 . 8
399
400
11. 12 c 3 H e , p 14N der d?T; 3 - 1 1 402
12. 12 c 3 H e , d 13 N CT 6 - 1 0 422
13. 12 c + 1 2 ^ e . d
C ( 3 H e , 13 N
pn) 1 3 N CTexc 6 - 3 0 422
14. 12 c 3Ue,a 1 1 C CT 1 - 6 423
15. 12 c 3 H e , n 1 4 o CT
a e x c
1 . 6 - 6 1 . 6 - 11 2 - 3 2
423 424 424
16. 14N 3 H e , p 1 6 0 CT 3 - 1 2 425
17. 14N 3 H e , a 13N a 4 - 1 0 425
18. 1 6 0 3 H e , p 18 F a 2 - 9 429
19. 1 6 0 3 H e , a 1 5 0 CT 2 - 9 429
20 . 19 F s H e , a 18 F a 3 - 9 4 3 0
21 . 19 F 3 H e , f f n ) 1 7 F a 3 - 9 430
392 LORENZEN and BRUNE.
2.80
3H (3He, n ) 5 Li
1-0 1.6 2.2 2.8 3.4 4.0
E 3 u (MeV) a H e
Reaction 1, Ref. H l
0 40 80 120 160
e c . m .
Reaction 1, Ref. H1
CHARGED-PARTICLE NUCLEAR EXCITATION FUNCTIONS 393
7 L i ( 3 He , t 0 l 7 Be
E 3 H e , M e V )
Reaction 2, Ref. H 2
7 3 . 7 Li C He,t ) Be
7 3 7 Li( He . tJ Be 7Li (3He, t 0 ) ? B e
"c.m.
Reaction 2 , Ref. H 2
394 LORENZEN and BRUNE
30
— 20
i r 7Li(3He,a)6L¡
"1 r
-a E
b i a
e = ¿o°
/ V
- M
2.0 2.5 3.0 3.5 4.0
E 3 H e I M e V )
Reaction 3, Ref. H2
9 Be(3He,n)i'C
10 12
E 3 u (MeV) He
Reaction 4, Ref. H2
9 B e l 3 H e , t 0 ) 9 B
E 3 H e , M e V »
Reaction 5, Ref. H2
CHARGED-P ARTICLE NUCLEAR EXCITATION FU NOTIONS 3 9 5
9Be(3He,t0 )9B 9Be(3He,t0)9B
1.5
- | 1 0
toiCi •01T3
0.5
1 i i i i
E 3 H e = 3 . 2 MeV
N -
\
\ • -
/ V / -\ »
i
\ •
1 1 1 1 30 60 9 0 120 150
9 c . m .
Reaction 5, Ref. H 2
9Be(3He,to)9B
60 9 0 120 150
9 c . m .
_ 3 in
-Q
b | G 2
• a l - o
\ i \
I- \
9Be(3He,t0)9B "i 1 1 r
E 3 H e = 3 . 8 M e V
• • a.
0 30 60 9 0 120 150
9 c . m .
Reaction 17, Ref. H11
772 LORENZEN and BRLJ NE
, 0 B ( 3 H e < P ) 1 2 C
11 12 13 U 15 16 17 18 19
E 3 H e ( M e V )
Reaction 6 , Ref. H4
1 C t e ( 3 H e , d ) 1 1C T T
d „ 1 5 0 ° V d .
• d 3
* d 4 . S
V
Reaction 17, Ref. H12
2.0F
1 .0k
b |G Tjfrj
, 0 B (3He,ao)9 B
— r
.< \ ; \ ! ,-r-I f \
!/ \
30° a 0
• 90° a«,
150° a
y
/• \ V> . - ' '
/ / !
1 i I
Ht / / /
I I I u 8 10 12
R e a c t i o n 8 , R e f . H 4
o X
> s
2 . 0 H
1.0h
o l e •o lu
1 r
1 0 B ( 3 H e , a , ) 9 B *
30° o ,
9 0 ° a ,
JZ 150° a ,
, — ' y -V / \ .
/ / / I ' /
¡fs J L _i L _ L _ L
8 10
E î H e (MeV)
Reaction 8, Ref. H4
J L. J L. 12 14 16 18 20
S Q >
H O Z
a z o H O Z
3 9 8 LORENZEN and BRLJ NE
1 0 B ( 3 H e , « o ) 9 B
E 3 H ( M e V )
Reaction 8 , Ref. H4
2 6
2.4
2.2
2.0
1.8
in 1.6 ^ XI 1 4 F
1.2
t > | o ¡ 1.0 • a l - o
1.0
0.8
0.6
0.4
0.2
, 0 B ( 3 H e , « , ) 9 B *
T " T
i 30° «,
v 60° a,
o 90° »,
• 150»«,
E 3 H e ( M e V )
Reaction 17, Ref. H12
CHARGED-P ARTICLE NUCLEAR EXCITATION FU NOTIONS 3 9 9
,0B(3He,n)12N
E3H<1(MeV)
Reaction 9, Ref. H5
10 B (3He,«o)9B
E 3 i . j M e V )
Reaction 17, Ref. H11
4 0 0 LORENZEN and BRLJ NE
1 0 O | 3 .
4.0
3.0
2.0
1.0
2.0
E 1.0
tolO t j | -O
2.0
1.0
2.0
i i " ' r - " -
- 8 Mtv • 1 ' 1 1 ' ' 1 ' ' • 1 1 ' ' -
5 , ^ - 9 ' 8 Mtv :
i i " ' r - " -
- 8 Mtv
£",„=9 0 Mtv :
r £ " v 4 - 2 n e v
- f j „ =3-4 Mtv
1 , , , 1 . , . 1 , , , 1 , , , • - • • < • - -=
20 60 100 140 20 60 100 140
0 C . m .
Reaction 10, Ref. H6
1 0 B ( 3 H e , a , ) 9 B *
E 3 u ( M e V ) H e
Reaction 17, Ref. H12
CHARGED-P ARTICLE NUCLEAR EXCITATION FUNCTIONS 401
1 0 B( 3 He,a , ) 9 B*
8 c.m.
Reaction 10, Ref. H6
402 LORENZEN and BRUNE
Reaction 11 , Ref . H 7
CHARGED-P ARTICLE NUCLEAR EXCITATION FUNCTIONS 403
Reaction 11, Ref. H7
404 LORENZEN and BRUNE
1 2 C ( 3 H e , p 2 ) u N *
in
- Q
D i G - o l - o
'He
Reaction 11 , Ref . H 7
CHARGED-P ARTICLE NUCLEAR EXCITATION FUNCTIONS 405
Reaction 11, Ref. H7
4 0 6 LORENZEN and BRUNE
1 2 C ( 3 H e , p 4 ) U N *
( 5 . 1 0 M e V S T A T E )
9 = 1 7 2 °
' H e
Reaction 11 , Ref. H 7
CHARGED-P ARTICLE NUCLEAR EXCITATION FUNCTIONS 4 0 7
, 2C (3He, p 5 ) u N *
'He
Reaction 11, Ref. H7
CHARGED-P ARTICLE NUCLEAR EXCITATION FUNCTIONS 4 0 9
, 2 C ( 3 H e , p 7 ) u N *
Reaction 11, Ref. H7
410 LORENZEN and BRLJ NE
1 T
12C ( 3 H e , p 8 ) u N *
i l
n 1 1 r
(6.44 MeV STATE)
8 = 172°
. Q e
150
Reaction 17, Ref. H12
CHARGED-P ARTICLE NUCLEAR EXCITATION FUNCTIONS 411
12C (3He, pg) U N *
JD
E H 20 o
Reaction 11, Ref. H7
Reaction 11, Ref. H7
CHARGED-P ARTICLE NUCLEAR EXCITATION FUNCTIONS 413
1 2 C ( 3 H e ) P l ) ' V
0c.m.
Reaction 11 , Ref. H 7
414 LORENZEN and BRLJ NE
Reaction 17, Ref. H12
CHARGED-P ARTICLE NUCLEAR EXCITATION FU NOTIONS 415
Reaction 17, Ref. H11
416 LORENZEN and BRLJ NE
, 2 C < 3 H e ( p 4 ) ' V
Reaction 17, Ref. H12
CHARGED-P ARTICLE NUCLEAR EXCITATION FU NOTIONS 417
« TLOO 1050 9.90
1 2 C ( 3 H e . p 5 ) V
9.70
12
8
4 Nt—**
\
16 9.50 9.20 8.92 8.60
12
8
4
8.35 8.23 8.10 7.90
\ \ ^
Reaction 17, Ref. H11
418 LORENZEN and BRLJ NE
Reaction 17, Ref. H12
CHARGED-P ARTICLE NUCLEAR EXCITATION FU NOTIONS 4 1 9
Reaction 17, Ref. H11
420 LORENZEN and BRLJ NE
6.05 5X6 5.10
\ «
^ "-»-"--Hy
, Im 1 1 . . . 1 i x
0 c. m.
Reaction 17, Ref. H12
CHARGED-P ARTICLE NUCLEAR EXCITATION FU NOTIONS 421
noo
y
1050 ago
1 2 C ( 3 H e , p g ) V
9.70
X
9.50 9.20 8.92 8.60
1 - , 1 ; , l , , , 1 . . . . . 1 1
8.35 a 2 3 8.D 7.90
a
750 7.00 6.70 650
6.05 5.46 5.10
a 90° 180® 9tf 180° 90" 180°
9c.m.
Reaction 17, Ref. H11
422 LORENZEN and BRUNE
2.8 1 2 C ( 3 H e , p ) U N
2.4 w l/> .o 2.0 E
1-6 o in
b i a 1.2 tjITJ
0.8
0.4
.3.945 MeV (p . )
2.31 MeV(p, 1 \ X \
g s ( p o r - >
• 10 12 U 16 13 20 22 24 26 28 30 32
E 3 H e ( M e V )
Reaction 11, Ref. H8
12C(3He,d ) n N
E3He ' M e V )
Reaction 12, Ref. H3
12„ , 3 , . .,1 C ( 3 H e , d ) , 3 N A N D ' 2 C ( 3 H e , p n ) , 3 N
6 8 10 12 H 16 18 20 22 24 26 28 30
E 3 u (MeV)
Reaction 13, Ref. H8
CHARGED-P ARTICLE NUCLEAR EXCITATION FU NOTIONS 799
,2C(3He,<x),1C
E 3 l l (MeV) 3 He
Reaction 14, Ref. H9
,2C(3He,n)1<D i i i i i i i
20
15
10
THRESHOLD /
•J I • • ' I I I I ! I I I • I 1 . . . • I
E 3 u (MeV) He
Reaction 17, Ref. H11
424 LORENZEN and BRLJ NE
E, (MeV) He
Reaction 15, Ref. H10
E 3 u (MeV) JHe
Reaction 17, Ref. H12
CHARGED-P ARTICLE NUCLEAR EXCITATION FU NOTIONS 4 2 5
JD
i 10 b
1
Reaction 16, Ref. H11
U N ( 3 H ^ ) , B 0
E3 (MeV)
U N ( 3 H Í , « ) 1 3 N
4 6 8 10 12 E 3 (MeV)
Reaction 17, Ref. H11
426 LORENZEN and BRLJ NE
U N( 3 He, t t 0 ) ' 3 N
Reaction 17, Ref. H12
14.., 3., .13..* N( He,«,) N
Reaction 17, Ref. H12
CHARGED-P ARTICLE NUCLEAR EXCITATION FUNCTIONS 803
14N(5He,a2+3)13N*
E, (MeV) He
Reaction 17, Ref. H12
428
x i e
10 H
1 h~
10
10 H
1 h -
i o '
i
10 V
LORENZEH and BRUNE
U N( 3 He,a ) 1 3 N
10° ( 0 . 5 9 H
^7 .5° (1)
2 5 ° (2 .1 )1
3 5 ° ( 2 . 3 H
^77.5 ( 6 8 ) ]
85° (0 .22 )
9 0 ° (0 .36)
9 5 ° ( 0 . 5 l )
'100°(0.70Î:
112.5°(0.90)"
¿I 1 I J 1 1 L 11
E 3 H e ( M e V )
Reac t ion 1 7 . R e f . H 1 1
x Indicates data from: KNUDSON, Y O U N G , Nucl. Phys. A 149 (1970) 323. The plotted cross-section must be multiplied by the number in brackets to obtain the true cross-section.
CHARGED-PARTICLE NUCLEAR EXCITATION FUNCTIONS
1 6 0 ( 3 H e , p ) 1 f l F
Reaction 18, Ref. H3
1 6 0 ( 3 H e . < x ) , 5 0
0 2 U 6 8 1 0 1 2
E 3 H e ( M e V )
Reaction 19, Ref. H3
430 LORENZEN and BRLJ NE
19F(3He,a)18F
0 2 i, 6 8 10 12
E 3 H e ( M e V )
Reaction 2 0 , Ref. H3
E 3 u (MeV) He
Reaction 17, Ref. H12
CHARGED-P ARTICLE NUCLEAR EXCITATION FUNCTIONS
YIELD CURVES
4 3 1
R e a c t i o n E n e r g y r a n g e
(MeV) P a g e
1. 9 B e ( 3 H e , n ) n C 6 - 8 432
2. 1 0 B ( 3 H e , 7 ) 1 3 N + 1 : 1 B ( 3 H e , n ) 1 3 N 6 - 8 432
3 . 1 0 B ( 3 H e , d ) u C + u B ( 3 H e , i ) u C 6 - 8 432
4 . 1 4 N ( 3 H e , d ) 1 5 0 6 - 8 4 3 3
5 . 1 4 N ( 3 H e , a ) 1 3 N 6 - 8 4 3 3
6 . 2 3 N a ( 3 H e , 2 p ) 2 4 N a 9 - 8 4 3 3
7. 9 B e ( 3 H e , n ) n C 1 0 B ( 3 H e , d ) n C + n B ( 3 H e , t ) n C 1 2 C ( 3 H e , a ) n C
0 -0 -0 -
8 8 8
434
n B ( 3 H e , n ) 1 3 N 1 2 C ( 3 H e , d ) 1 3 N 1 4 N ( 3 H e , < * ) 1 3 N
0 -0 -0 -
8 8 8
1 2 C ( 3 H e , n ) 1 4 0 0 - 8
8. 1 4 N ( 3 H e , d ) 1 5 0 1 6 0 ( 3 H e , a ) 1 5 0
0 -0 -
8 8
435
1 9 F ( 3 H e , a n ) 1 7 F 0 - 8 1 6 0 ( 3 H e , p ) 1 8 F 1 9F(3He, o ) 1 8 F
0 -0 -
8 8
808 LORENZEN and BRUNE
9Be( 3He,nl 1 ,C
6 8 10 12 U 16 18 E , (MeV)
H»
Reaction 1, Ref. Y1
10=,ÎL. l i t 1 1 c . \ ' 3 U B( He,y) N* B( He,n) N
I ' I ' I I I I I < 5
r / 1 '
y ' * i » » 6 8 10 12 U 16 18
E 3 H e ( M e V .
Reaction 2, Ref. Y 1
, 0 B i V o > , , c * , 1 B c V t > , , c T ~ i ' I 1 I 1 I i I - 1 T - 1 "
6 8 10 12 U 16 18
E 3 H e (MeV)
Reactions 7, Ref. Y2
CHARGED-PARTICLE NUCLEAR EXCITATION FUNCTIONS 43 5
U 3 15 N I He,d ) 0
l5« _L l . l . l I i I 6 8 10 12 H 16 18
E 3 H e (MeV)
Reaction 4 , Ref. Y 1
I i I 1 I 1
2 -e 0
1 5 h
" n (3He, * ) " n
I I I I I
a
IÜ 2 h
10 I i I i I i I ' ' ' I ' I 10 12 U 16 18
E 3 H e , M e V )
Reaction 5, Ref. Y 1
I > I i I i I 1
2 3 Na ( 3 H e , 2 p ) " N Q
2 -
-5 10 -
• ¡¡J 10"
1 I 1 I
z 1 '
/ j.
i ' • ' ' ' ' i ' 8 10 12 H 16 18
E a H e (MeV)
Reactions 8, Ref. Y2
4 3 4 LORENZEN and BRUNE
I I I I I I I I I I I I I I I I I I I I I
1 2 C ( 3 H e , a ) 1 1 C
10 r~
5 h
. q
~ 21
1 0 h
5 h
1 2 C ( 3 H e , d ) 1 3 N 1 4 N( 3 He,a) 1 3 Nl
B(3He,d)11C . + 11B(3He,t)11C
9Be(3He,n)1 ,C
1 2C( 3He,n ) 1 4 0
2 r b . n B ( 3 H e , n ) 1 3 N
i L - Ü i 11 i i i i i i i i i i i i i i i i i
8 12 16 20
E.3He ( M e V )
Reactions 7, Ref. Y2
CHARGED-PARTICLE NUCLEAR EXCITATION FUNCTIONS 4 3 5
E 3 H e (MeV)
Reactions 8, Ref. Y2
436 LORENZEN and BRUNE
R E F E R E N C E S T O G R A P H S P r o t o n
PI BORCHERS, R.R. , POPPE, C . H . , Phys. Rev. 129 (1963) 2679. P2 SWEENY, W . E . , MARION, J . B . , Phys. Rev. 182 (1969) 1007. P3 VAUGHN, F . J . , et a l . , Phys. Rev. 2 (1970) 1657. P4 BLIEDEN, H . R . , TEMMER, G . M . , WARSH, K . L . , Nucl . Phys. 49 (1963) 209. P5 GOOSMAN, D . R . , ADELBERGER, E . G . , SNOVER, K . A . , Phys. Rev. 1 (1970) 123. P6 KUAN, H . M . , et a l . , Nucl. Phys. A151 (1970) 129. P7 ALLAS, R . G . , et a l . , Nucl. Phys. 58 (1964) 122. P8 ] ARM IE, N . , SEAGRAVE, J . D . , Rep. LA-2014 (1957). P9 WONG, C . , et a l . , Phys. Rev. 123 (1961) 598. P10 DAGLEY, P . , HAEBERLI, W., S ALAD IN, J . X . , Nucl. Phys. 24 (1961) 353. P l i BERGDOLT, G . , GUILLAUME, G . , ] . Phys. 30 (1969) 145. P12 WARSH, K . L . , TEMMER, G . M . , BLIEDEN, H . R . , Phys. Rev. 131 (1963) 1690. P13 WILLARD, H . B . , e t a l . , Phys. Rev. 85(1952) 849. P14 CHAO, C . Y . , e t a l . , Phys. Rev. _79 (1950) 108.
D e u t e r o n Dl BATTLESON, K . , McDANIELS, D . K . , Phys. Rev. 4(1971) 1601. D2 DIN, G . U . , NAGARAJAN, M . A . , POLLARD, R . , Nucl. Phys. A93 (1967) 190. D3 BRILL, O . D . , SUMIN, L . V . , At. Ehnerg. 2 (1959) 377. D4 CORDS, H . , DIN, G . U . , ROBSON, B .A. , Nucl. Phys. A127 (1969) 95. D5 DAVIS, J . R . , DIN, G . U . , Nucl. Phys. A179 (1972) 101. D6 JASZCZAK, R . J . , MACKL1N, R .L . , GIBBONS, J . H . , Phys. Rev. 181 (1969) 1428. D7 PORTO, V . G . , et a l . , Nucl. Phys. A136 (1969) 385. D8 RETZ-SCHMIDT, T . , WEIL, J . L . , Phys. Rev. 119 (1960) 1079. D9 BAHNSEN, R . M . , WYLIE, W.R. , LEFEVRE, H . W . , Phys. Rev. 2 (1970) 859. DIO THORNTON, S . T . , et a l . , Phys. Rev. 3 (1971) 1065. D i l JOBST, J . , MESSELT. S . . RICHARDS. H. T . . Phys. Rev. 178 (1969) 1663. D12 COMSAN, M . N . H . , Atomkernenergie 18 (1971) 317.
A l p h a
Al BLIEDEN, H . R . , TEMMER, G . M . , WARSH, K . L . , Nucl. Phys. 49 (1963) 209. A2 VAN DERZWAN, L. , GEIGER, K.W. , Nucl. Phys. A180 (1972) 615. A3 OBST, A . W . , GRANDY, T . B . , WEIL, J . L . , Phys. Rev. C 5 (1972) 738. A4 DAVIDS, C . N . , Nucl . Phys. Al 10 (1968) 619. A5 BRILL, O . D . , SUMIN, L . V . , At. Ehnerg. 7 (1959) 377. A6 SEKHARAN, K . K . . et a l . , Phys. Rev. 156 (1967) 1187. A7 GRUHLE, W . , SCHMIDT, W . , BURGMER, W . , Nucl. Phys. A186 (1972) 257.
H e l i u m H l KLOPCIC, J . T . , DARDEN, S . E . , Phys. Rev. C 3(1971) 2171. H2 ORIHARA, H . , e t a l . , Nucl . Phys. A139 (1969) ~226. H3 HAHN, R .L . , RICCI, E . , Phys. Rev. 146 (1966) 650. H4 BELL, R . A . I . , e t a l . , Rep. ANU-P/550 (1972). H5 PETERSON, R. W. , GLASS, N . W . , Phys. Rev. 130 (1963) 292. H6 PATTERSON, J . R . , POATE, J . M . , TITTERTON, E . W . , Proc. Phys. Soc. 85 (1965) 1085. H7 HAAS, F . , e t a l . , Phys. Rev. 188 (1969) 1625. H8 SINGH, J . , Nucl. Phys. A155 (19 7 0) 443. H9 CIRILOV, S . D . , NEWTON, J . O . , SCHAPIRA, J . P . , Nucl . Phys. 77 (1966) 472. H10 OSGOOD, D.R., PATTERSON, J . R . , TITTERTON, E . W . , Nucl . Phys. 60 (1964) 503. H l l GUAZZONI, P . , MICHELETTI, S . , PIGNANELLI, M . , Phys. Rev. C 4(1971) 1086. H12 KNUDSON, A . R . , YOUNG, R . C . , Nucl. Phys. A149 (1970) 323.
Y i e l d c u r v e s
Y1 HAHN, R . L . , RICCI, E . , Nucl. Phys. A101 (1967) 353. Y2 RICCI, E . , HAHN, R . L . , Anal. C h e m . 40 (1968) 54.
CHARGED-PARTICLE NUCLEAR EXCITATION FUNCTIONS 4 3 7
APPENDIX 1
E X C I T A T I O N F U N C T I O N S O F C H A R G E D - P A R TIC L E - INDU C E D R E A C T I O N S A T HIGHER E N E R G I E S *
T a b l e A l - I . C h a r a c t e r i s t i c d a t a f o r t h e e x c i t a t i o n f u n c t i o n s .
F i g u r e A l - 1 . P o s i t i o n s of t he m a x i m a f o r t h e e x c i t a t i o n f u n c t i o n s d e p e n d e n t on t he a t o m i c n u m b e r Z of t he t a r g e t n u c l e u s .
F i g u r e A l - 2 . F u l l w i d t h a t hal f m a x i m u m f o r t h e e x c i t a t i o n f u n c t i o n s d e p e n d e n t on t h e a t o m i c n u m b e r Z of t he t a r g e t n u c l e u s .
F i g u r e A l - 3 . H e i g h t s of m a x i m a f o r t h e e x c i t a t i o n f u n c t i o n s d e p e n d e n t on t h e a t o m i c n u m b e r Z of t he t a r g e t n u c l e u s .
F i g u r e A l - 4 . C h a r a c t e r i s t i c d a t a of t h e e x c i t a t i o n f u n c t i o n s d e p e n d e n t on t h e a t o m i c n u m b e r Z of t h e t a r g e t n u c l e u s .
F i g u r e s A l - 5 to A l - 1 2 . E s t i m a t e d and e x p e r i m e n t a l e x c i t a t i o n f u n c t i o n s .
F i g u r e A l - 1 3 . Y ie ld f r o m i r r a d i a t i o n of t h i c k t a r g e t s .
From: LANGE, J . , MUNZEL, H . , Estimation of Unknown Excitation Functions for ( a , xn) - , ( a , p x n ) -( d , x n ) - , ( d , pxn ) - , and (p .xn)-React ions , Rep. KFK-767 (1968), with kind permission from the authors.
438 LORENZEN and BRU NE
T A B L E A l - I . C H A R A C T E R I S T I C DATA FOR THE EXCITATION FUNCTIONS
No. T a r g e t n u c l e u s
R e a c t i o n Q - v a l u e
(MeV)
P o s i t i o n of m a x i m u m ' 3
(MeV)
He igh t of m a x i m u m
(mb)
(a , n) 1 21 S c - 4 5 - 2 . 2 12. 7 630
2a 25 M n - 5 5 - 3 . 5 8. 7 680 2b 25 M n - 5 5 - 3 . 5 10. 9 520
3 26 F e - 5 4 - 5 . 8 10. 5 190
4 27 C o - 5 9 - 5 . 1 - -5 28 N i - 6 0 -7 . 9 11. 1 550 6 N i - 6 2 -6 . 5 9 , 7 950 7 29 C u - 6 3 -7 . 5 8. 9 700
8a C u - 6 5 - 5 . 8 - -8b C u - 6 5 - 5 . 8 11. 8 820 9a 30 Z n - 6 4 - 9 . 2 10. 9 770
9b 30 Znr-64 - 9 . 2 10. 2 320
10 Z n - 6 8 - 5 . 7 - -11 37 R b - 8 5 -3 . 5 12. 0 250 12 R b - 8 7 -3 . 8 10. 0 240
13a 41 N b - 9 3 - 7 . 0 9 . 4 470 13b 41 N b - 9 3 - 7 . 0 - -14 42 M o - 9 2 - 8 . 4 11. 6 370
15 M o - 1 0 0 - 4 . 6 9. 6 760
16a 47 A g - 1 0 7 - 7 . 6 9. 2 420 16b 47 A g - 1 0 7 - 7 . 6 10. 8 340
17 Ag-109 - 6 . 4 10. 0 360 18 48 C d - 1 0 6 -10 . 1 10. 9 670
a T h e n u m b e r s r e f e r to the n u m b e r e d e x c i t a t i o n func t ion c u r v e s i n F i g s A l - 5 to A l - 1 2 .
b Wi th r e s p e c t to the e n e r g y s c a l e E + Q .
CHARGED-P ARTICLE NUCLEAR EXCITATION FUNCTIONS 439
T A B L E A 2 - I (cont . )
No. T a r g e t
n u c l e u s
R e a c t i o n Q - v a l u e
(MeV)
P o s i t i o n of m a x i m u m
(MeV) -
Height of m a x i m u m
(mb)
( a . n )
19 49 In - 1 1 5 -7 . 2 12. 1 300
20 50 Sn-112 -13 . 0 6 . 4 550
21 Sn -114 -11 . 1 7. 0 290
22 Sn -124 - 5 . 6 13. 4 160
23a 56 B a - 1 3 8 -8 . 6 7. 4 130
23b 56 B a - 1 3 8 -8 . 6 17. 2 900
24a 57 L a - 1 3 9 - 9 . 2 9. 1 115
2 4b 57 L a - 1 3 9 - 9 . 2 8. 4 110
24c 57 L a - 1 3 9 - 9 . 2 8. 3 110
25a 67 H o - 1 6 5 - 9 . 2 11. 8 79 25b 67 H o - 1 6 5 - 9 . 2 8. 8 30
26 68 E r - 1 6 4 -11 . 1 6. 9 260
27 79 A u - 1 9 7 - 9 . 8 - -
28 82 P b - 2 0 7 -12 . 1 10. 3 110
29 P b - 2 0 8 -15 . 0 6. 4 90
30 92 U - 2 3 5 -10 . 9 - -
31 94 P u - 2 3 8 -13 . 1 -
(a , 2n) 1 21 S c - 4 5 -12 . 8 13. 3 200
2a 25 M n - 5 5 -12 . 1 - 640
2b 2,5 M n - 5 5 - 1 2 . 1 - 670
3 26 F e - 5 4 -16 . 0 16. 3 10
4 27 C o - 5 9 -14 . 0 14. 4 390
5 28 N i - 6 0 -17 . 1 14. 9 180
6 2.9 C u - 6 3 -16 . 6 14. 4 260
7a C u - 6 5 -14 . 1 13. 4 650
7b C u - 6 5 -14 . 1 - 1000
8 30 Z n - 6 4 -19 . 0 13. 5 86
9 32 G e - 7 0 -16 . 1 16. 9 320
10 35 B r - 7 9 -14 . 4 - 2300
11 37 R b - 8 5 -12 . 7 12. 3 810 12 47 A g - 1 0 7 -15 . 6 11. 4 1000
440 LORENZEN and BRUNE.
T A B L E A l - I (cont . )
No. T a r g e t n u c l e u s
R e a c t i o n Q - v a l u e
(MeV)
P o s i t i o n of m a x i m u m
(MeV)
He igh t of m a x i m u m
(mb)
(or, 2n) 13 A g - 1 0 9 -14 . 3 10. 2 1050
14 48 C d - 1 0 6 -19 . 2 12. 3 430
15 52 T e - 1 3 0 -11 . 8 13. 7 66
16 67 H o - 1 6 5 -16 . 2 7. 3 750
17 68 E r - 1 6 4 -18 . 0 11. 0 820
18a 79 Au-197 -16 . 4 12. 6 640
18b 79 A u - 1 9 7 -16 . 4 1 3 . 6 800
18c 79 Au-197 -16 . 4 12. 4 650
19 82 P b - 2 0 6 - 2 0 . 0 11. 0 1050
20 P b - 2 0 8 -19 . 5 10. 5 1000
21a 83 B i - 2 0 9 -20 . 3 9 . 9 900
21b 83 B i - 2 0 9 -20 . 3 10. 5 910
22 92 U - 2 3 3 -19 . 1 8. 9 6. 5
23 U - 2 3 5 -17 . 9 8. 3 16
24 93 N p - 2 3 7 -18 . 3 9 . 7 16
25 94 P u - 2 3 8 -17 . 8 8. 2 15. 5
26 P u - 2 3 9 -18 . 2 10. 8 13
27 P u - 2 4 2 -17 . 2 7 . 8 10. 5
28 98 C f - 2 5 2 -18 . 2 10. 4 9. 5
(ff, 3n) 1 25 M n - 5 5 -23 . 5 - -
2 26 F e - 5 6 -26 . 3 17. 3 16
3 30 Z n - 6 4 -31 . 5 - -
4 37 R b - 8 5 -24 . 7 15. 1 600
5 47 A g - 1 0 7 -26 . 1 13. 1 550
6a A g - 1 0 9 -24 . 1 11. 9 1000
6b A g - 1 0 9 -24 . 1 13. 9 950
7 49 I n - 1 1 5 -24 . 4 - -
8 50 Sn -124 -21 . 0 15. 0 1400
9 57 L a - 1 3 9 -24 . 5 11. 7 1400
10 67 H o - 1 6 5 -24 . 7 10. 1 840
11 68 E r - 1 6 4 -27 . 5 12. 9 1180
CHARGED-P ARTICLE NUCLEAR EXCITATION FUNCTIONS 441
T A B L E A 2 - I (cont . )
No. T a r g e t n u c l e u s
R e a c t i o n Q - v a l u e
(MeV)
P o s i t i o n of m a x i m u m
(MeV)
He igh t of m a x i m u m
(mb)
(or. 3n) 12a 79 Au-197 -25 . 4 1 3 . 6 1100
12b 79 A u - 1 9 7 -25 . 4 12. 8 1400
13 82 P b - 2 0 6 -28 . 5 - -
14 P b - 2 0 7 -26 . 8 12 8 1400
15 83 B i - 2 0 9 -28 . 0 - -
16 83 B i - 2 0 9 -28 . 0 1 1 . 5 1200
17 92 U - 2 3 3 -25 . 3 9. 1 1
18 U - 2 3 5 -23 . 8 9 . 8 8
19 93 Np-237 -25 . 4 13. 4 14
20 94 P u - 2 3 9 -23 . 8 13. 2 4. 5 21 98 C f - 2 5 2 -25 . 0 12. 4 3. 3
(» . P) 1 26 F e - 5 4 - 1 . 8 16. 2 600 2 28 N i - 5 8 -3 . 1 - -
3 30 Z n - 6 4 - 4 . 0 15. 0 520 4 42 M o - 9 2 - 5 . 6 14. 4 185 5 48 C d - 1 0 6 - 5 . 6 1 7 . 3 245 6 50 S n - 1 2 4 - 6 . 4 2 3 . 0 18
( a , pn) l a 26 F e - 5 4 - 1 3 . 2 14. 8 750 l b 26 F e - 5 4 -13 . 2 14. 6 470 2a F e - 5 6 -13 . 7 13. 7 840 2b F e - 5 6 -13 . 7 14. 7 790 2c F e - 5 6 -13 . 7 16. 3 630 3 28 N i - 6 0 - 1 4 . 6 16. 4 890 4 N i - 6 2 -14 . 3 17. 2 495 5 29 C u - 6 3 -12 . 6 1 7 . 4 870 6a 30 Z n - 6 4 -16 . 0 - -
6b 30 Z n - 6 4 -16 . 0 16. 6 790 7 Z n - 6 6 -15 . 5 - -
8 Z n - 7 0 -13 . 9 17. 1 88
9 32 G e - 7 0 -15 . 3 15 .7 575
442 LORENZEN and BRUNE.
T A B L E A l - I (cont . )
No. T a r g e t n u c l e u s
R e a c t i o n Q - v a l u e
(MeV)
P o s i t i o n of m a x i m u m
(MeV)
Height of m a x i m u m
(mb)
(a . Pn) 10 47 Ag-107 -13 . 6 1 7 . 4 91 11 48 C d - 1 0 6 - 1 6 . 7 18. 6 225 12 50 Sn-124 -14. 8 24. 2 46
13 57 L a - 1 3 9 -15 . 6 - -
14 94 P u - 2 3 8 -18. 3 20. 7 15
(d ,n ) 1 22 T i - 4 7 4. 6 12. 4 200 2 24 C r - 5 0 2. 9 8. 3 265 3 26 F e - 5 4 2. 8 10. 5 155
4 30 Z n - 6 6 3. 1 11. 4 450 5 32 G e - 7 0 2. 4 10. 4 270 6a 40 Z r - 9 4 4. 6 13. 8 120 6b 40 Z r - 9 4 4. 6 12. 3 130 7a Z r - 9 6 5. 2 12. 7 85
7b Z r - 9 6 5. 2 13. 0 85 8 42 Mo -92 1. 9 10. 9 190
9 52 T e - 1 3 0 5. 2 16. 2 75 10a 58 C e - 1 4 2 3. 5 - -
10b 58 C e - 1 4 2 3. 5 1 5 . 9 60
I I a 83 B i - 2 0 9 2. 8 20. 8 34
I I b 83 B i - 2 0 9 2. 8 - 32
12 92 U - 2 3 5 2. 6 22. 2 10 13 94 P u - 2 3 9 2. 2 24. 2 14
(d, 2n) 1 22 T i - 4 7 - 5 . 9 9. 5 400 2 T i - 4 8 - 7 . 0 10. 0 38
3a 24 C r - 5 2 - 7 . 7 - -
3b 24 C r - 5 2 -7 . 7 14. 3 200
4 26 F e - 5 6 - 7 . 6 10. 0 310 5 29 C u - 6 3 -6 . 4 - . -
6a C u - 6 5 -4 . 4 11. 3 920
6b C u - 6 5 -4 . 4 9 . 6 820
7a 30 Z n - 6 6 -8 . 2 - -
CHARGED-P ARTICLE NUCLEAR EXCITATION FUNCTIONS 4 4 3
T A B L E A 2 - I (cont . )
No . T a r g e t n u c l e u s
R e a c t i o n Q - v a l u e
(MeV)
P o s i t i o n of m a x i m u m
(MeV)
He igh t of m a x i m u m
(mb)
(d, 2n) 7b 8
30 Z n - 6 6 Z n - 6 8
-8 . 2
- 5 . 9 ; 9 32 G e - 7 0 -9 . 2 - -
10 34 S e - 8 2 -3 . 1 - -
11a 40 Z r - 9 6 - 2 . 8 - -
l i b 40 Z r - 9 6 - 2 . 8 8. 2 1050
12 52 T e - 1 2 6 - 5 . 2 7. 3 750
13 T e - 1 2 8 - 4 . 3 9. 0 800
14a T e - 1 3 0 -3 . 4 8. 8 700
14b T e - 1 3 0 - 3 . 4 8. 5 7 50
15 53 J - 1 2 7 - 3 . 7 10. 9 700
16 55 C s - 1 3 3 -3 . 5 10. 3 600
17a 58 C e - 1 4 2 -3 . 8 - -
17b 58 C e - 1 4 2 - 3 . 8 7 . 8 7 50
18 73 T a - 1 8 1 - 3 . 2 8. 4 660
19 74 W-184 - 4 . 7 - -
20 W-186 -3 . 6 9. 2 380
21 79 A u - 1 9 7 - 3 . 8 10. 8 600
22 83 B i - 2 0 9 - 4 . 9 9 . 9 540 23 92 U - 2 3 4 - 4 . 8 9. 2 32
24a U - 2 3 5 - 3 . 1 8 6 19 24b U- 235 - 3 . 1 10. 8 25
25 U - 2 3 6 -3 . 9 8. 4 43
26a U-238 - 3 . 1 8. 9 48
26b U - 2 3 8 -3 . 1 10. 5 70
27 94 P u - 2 3 9 -3 . 8 10. 6 28
(d, 3n) 1 40 Z r - 9 6 -10 . 0 - -
2 53 J - 1 2 7 -10 . 9 - -
3 59 P r - 1 4 1 -12 . 7 12. 9 1200
4a 83 B i - 2 0 9 -11 . 9 - -
4b 83 B i - 2 0 9 -11 . 9 - -
5 92 U - 2 3 4 -10 . 9 7. 9 19
4 4 4 LORENZEN and BRUNE.
T A B L E A l - I (cont . )
No. T a r g e t n u c l e u s
R e a c t i o n Q - v a l u e
(MeV)
P o s i t i o n of m a x i m u m
(MeV)
He igh t of m a x i m u m
(mb)
(d. 3n) 6a 92 U - 2 3 5 -10 . 1 10. 1 26
6b 92 U - 2 3 5 -10 . 1 8. 9 24
7 U - 2 3 6 - 9 . 6 9 . 4 57
8 94 P u - 2 3 9 -10 . 9 - -
(d ,p ) i 27 C o - 5 9 5. 3 13. 1 300
2 29 C u - 6 3 5. 7 14 .7 27 5
3 30 Z n - 6 8 4. 3 12. 5 450
4 32 G e - 7 0 5. 2 1 3 . 4 450
5 33 A s - 7 5 5. 1 13. 6 250
6 35 B r - 8 1 5. 4 13. 9 370
7 39 Y-89 4. 6 13. 6 20 5
8 40 Z r - 9 4 4. 2 13. 4 280
9a Z r - 9 6 3. 4 12. 8 220
9b Z r - 9 6 3. 4 12. 6 300
Í0 45 R h - 1 0 3 4. 8 14. 5 200 11 46 P d - 1 1 0 3. 5 12. 8 285
12 48 C d - 1 1 4 3. 9 13. 3 265
13 52 T e - 1 3 0 3. 7 13. 5 200
14 55 C s - 1 3 3 3. 9 13. 5 175
15a 58 C e - 1 4 2 2 . 9 - -
15b 58 C e - 1 4 2 2 . 9 1 2 . 9 230 16 59 P r - 1 4 1 3. 6 15. 8 260
17 73 T a - 1 8 1 3 . 8 15. 8 230
18 74 W - 1 8 4 3. 5 15. 8 280
19 W - 1 8 6 3. 3 15. 7 310
20 75 R e - 1 8 7 3. 0 17. 0 210 21 78 P t - 1 9 6 3. 1 - -
22a 79 A u - 1 9 7 4. 3 1 8 . 8 280
22b 79 A u - 1 9 7 4. 3 19. 3 160
23 82 P b - 2 0 8 1. 7 15. 1 205
24 83 B i - 2 0 9 2. 4 1 5 . 4 115
25 B i - 2 0 9 2. 4 15. 6 110
26 92 U - 2 3 8 2. 6 18. 6 220
CHARGED-P ARTICLE NUCLEAR EXCITATION FUNCTIONS 4 4 5
T A B L E A 2 - I (cont . )
„ , R e a c t i o n P o s i t i o n of He igh t of T a r g e t ^ . . No. . Q - v a l u e m a x i m u m m a x i m u m n u c l e u s (MeV) (MeV) (mb)
(P. n) 1 22 T i - 4 7 - 3 . 7 6. 5 300
2 T i - 4 8 - 4 . 8 7 . 2 510
3a 23 V - 5 1 - 1 . 5 - -
3b 23 V - 5 1 - 1 . 5 11. 5 700
4a 24 C r - 5 2 -5 . 5 7. 1 600
4b 24 C r - 5 2 -5 . 5 - -
5 25 M n - 5 5 - 1 . 0 - -
6 26 F e - 5 6 - 5 . 4 6. 6 450
7 F e - 5 7 - 1 . 6 7 . 4 400
8 27 C o - 5 9 - 1 . 9 8. 1 500
9 28 N i - 6 1 - 3 . 0 6. 6 700
10 N i - 6 2 - 4 . 7 - -
11 N i - 6 4 - 2 . 5 7. 9 850
12 29 C u - 6 3 -4 . 2 8. 2 500 13 C u - 6 5 - 2 . 1 - -
14 31 G a - 6 9 - 2 . 2 - -
15 39 Y-89 - 3 . 6 9 . 4 730 16 47 A g - 1 0 7 - 2 . 2 - -
17 A g - 1 0 9 - 1 . 0 8. 2 360 18 48 C d - 1 1 0 - 4 . 7 8. 3 870 19a C d - 1 1 1 - 1 . 9 11. 1 530 19b C d - 1 1 1 - 1 . 9 - -
20 C d - 1 1 2 - 3 . 4 - -
21 C d - 1 1 4 - 2 . 2 - -
22 50 Sn -124 - 1 . 4 - -
23 57 L a - 1 3 9 - 1 . 1 - -
24 58 C e - 1 4 2 - 1 . 6 7. 4 120 25 59 P r - 1 4 1 - 2 . 6 - -
26a 73 T a - 1 8 1 - 1 . 0 8. 5 100 26b 73 T a - 1 8 1 - 1 . 0 9. 0 100 26c 7 3 T a - 1 8 1 - 1 . 0 9 . 0 105
26d 73 T a - 1 8 1 - 1 . 0 12 100 27 79 A u - 1 9 7 - 1 . 6 9 . 2 95
446 LORENZEN and BRUNE.
T A B L E A l - I (cont . )
No. T a r g e t n u c l e u s
R e ac t ion Q - v a l u e
(MeV)
P o s i t i o n of m a x i m u m
(MeV)
Height of m a x i m u m
(mb)
(p, 2n) 1 23 V - 5 1 - 1 0 . 8 4. 2 240
2 27 C o - 5 9 -10 . 9 - -
3 28 N i - 6 2 -13 . 6 9. 9 2.10
4 29 C u - 6 3 -13 . 3 11. 7 180
5 31 G a - 6 9 - 1 1 . 6 7. 4 500
6 39 Y-89 - 1 2 . 8 13. 2 1300
7 41 N b - 9 3 - 9 . 3 - -
8 47 Ag-107 -10 . 1 - -
9 48 C d - H O -12 . 7 - -
10 C d - 1 1 1 -11 . 7 - -
11 C d - 1 1 2 -11 . 3 9 . 7 1050
12a 7 3 T a - 1 8 1 - 7 . 9 - -
12b 73 T a - 1 8 1 - 7 . 9 6 . 8 900
13a 79 A u - 1 9 7 - 8 . 2 - -
13b 79 A u - 1 9 7 -8 . 2 " - -
14 82 P b - 2 0 6 -11 . 6 9- 4 1050
(p. 3n) 1 23 V - 5 1 - 2 3 . 7 16. 3 100
2 27 C o - 5 9 -23 . 1 17. 9 11
3 29 C u - 6 5 -22 . 0 16. 0 160
4 31 G a - 6 9 -23 . 8 13. 2 65
5 G a - 7 1 -20 . 0 10. 0 550
6 39 Y-89 -20 . 8 20. 2 390
7 48 C d - 1 1 2 -21 . 1 9. 9 780
8 73 T a - 1 8 1 -15 . 5 9. 5 1200
9 82 P b - 2 0 6 - 2 0 . 0 9. 0 900
10 83 B i - 2 0 9 -18 . 0 12. 0 850
CHARGED-P ARTICLE NUCLEAR EXCITATION FUNCTIONS 447
FIG. A l - 1 . Positions of the max ima for the exc i t a t ion functions dependent on t he a t o m i c number Z of t he ta rget nucleus .
448 LORENZEN and BRUNE
FIG. A l - 2 . Full width at ha l f m a x i m u m for t he exc i ta t ion funct ions dependent on t he a t om i c number Z of t he ta rget nucleus .
CHARGED-PARTICLE NUCLEAR EXCITATION FUNCTIONS 4 4 9
FIG. A l - 3 . Heights of m a x i m a for the exc i t a t ion funct ions dependent on the a t o m i c number Z of the ta rget nucleus .
450 LORENZEN and BRU NE
Position of max ima
Height of max ima
FIG. A l - 4 . Characterist ic data of the exci ta t ion functions dependent on the a tomic number Z of the target nucleus. structure corresponding to Figs. A l - 1 to Al -3 ; structure es t imated.
CHARGED-PART1CLE NUCLEAR EXCITATION FUNCTIONS 451
FIG. A l - 7 . Estimated and expe r imen ta l exc i ta t ion funct ions . expe r imen ta l exc i t a t ion functions; exc i ta t ion functions es t ima ted for the midd le of the Z - r eg ion given in the f igures.
4 5 2 LORENZEN and BRUNE
FIG. Al-10. Est imated and exper imenta l exc i t a t ion funct ions. '•" expe r imen ta l exc i t a t ion functions;
exc i ta t ion funct ions es t imated for the midd le of the Z - r e g i o n given in the figures.
CHARGED-PART1CLE NUCLEAR EXCITATION FUNCTIONS 4 5 3
10 15 20 25 30 35 E.*QCMeV3
10 15 20 25 30 35 E-*Q [MeV)
3-103!
10!
ecmbj
.0°
' 1
(a,,pn)
_ 2« 20 - AO
~ 6 Q X C ^ 6b r
7*. y y y f e . < —-Ib^--^
[fí/T/^ :
«b-f/f I
/ 1 7 /
— ¡ f-2b /
- 1 1 8 -
- 'a ?5 -
K 1 1 1 1
3.»'
103
10 15 20 25 30 35 E_+Q CMeV]
1 1 I —i 1 i
(a,pn)
r Z = 41 - 60 _
- ' / z / V ^ -
/ yf : f / \ ^--V lï N
¿ II
f t / / — / I / / '- t / / - / ' / / / ' / / / ' / / - / / L
/ '• / '« , 1 , 1 20 25 30 35
Eg, .0 CMeVJ
FIG. A l - 7 . Estimated and exper imenta l exci ta t ion functions.
exper imenta l exci ta t ion functions;
exci tat ion functions est imated for the middle of the Z- reg ion given in the figures.
830 LORENZEN and BRUNE
2 0 2 5 30 3 5
E n » 0 C MeV]
3-tO3
103
Slmö]
-
1
ld,n)
r 2=20-40 —
i -
—
z 1 If 6c-j rf ,--6a -- 2 / 7¿/6b
- i s s : 5-1 /
- / 1-3 1 N s
rf-6b E -
7o, P
' - i i i 10 15 20 2 5 3 0 3 5
E a • Q t M e V ]
3 - t f ,
FIG. Al-10. Estimated and experimental exci tat ion functions.
'•" exper imenta l exci tat ion functions;
exci tat ion functions est imated for the middle of the Z-region given in the figures.
CHARGED-PART1CLE NUCLEAR EXCITATION FUNCTIONS 4 5 5
FIG. A l - 7 . Est imated and expe r imen ta l exc i t a t ion funct ions . e x p e r i m e n t a l exc i ta t ion funct ions; exc i t a t i on funct ions es t ima ted for t he m i d d l e of the Z - r eg ion given in t he f igures.
4 5 6 LORENZEN and BRUNE
FIG. A l - 1 0 . Est imated and expe r imen ta l exc i t a t ion funct ions . '•" expe r imen ta l exc i ta t ion functions;
exc i ta t ion functions es t ima ted for the midd le of the Z- reg ion given in the f igures.
CHARGED-P ARTICLE NUCLEAR EXCITATION FUNCTIONS 4 5 7
3-103
2 0 25 3 0
Ep » Q CMeV1
(p,2n) r s- ZïAi-60 — - //X'
Ji-i- 9 r hi
: \\ \ N \ x 7 i nil
•Hi--« V II II
If, -
y i i — i — i — i i
0 5 10 15 20 25 30
Ep»O [MeV1
FIG. A l - 1 1 . Estimated and exper imental exci tat ion functions.
exper imenta l exci ta t ion functions;
exci tat ion functions est imated for the middle of the Z- reg ion given in the figures.
LORENZEN and BRUNE
a-K^r
K>:
5 10 15 20 25 30 35 Ep« Q ÜMev:
- (p,3n) 2 s 61 -83 —
: ft* x
/ ' / • / ' /
/' / - s - h I i /
0 -
i 4 3 1 í i I t !
-
0 5 10 15 2 0 25 3 0 35 ,u 6 ,0 15 20 2S 30 35
Ep + Q CMeV3 Ep + O CMeVJ
FIG.A1-12. Estimated and experimental excitat ion functions. exper imenta l exci ta t ion functions; exci ta t ion functions est imated for the middle of the Z-region given in the figures.
CHARGED-P ARTICLE NUCLEAR EXCITATION FUNCTIONS 4 5 9
10' AK
S
-
- Z. 30 :
r Z = S0_
/ Z i 70 I
[ 1 Z i 90 -
(a.n) \
. -
ÍS) 10*
I 1
- 7 .30 I
r ' Z = 50 ~
/ Z = 70
/ 2 =90 1
^ ^ (<x.p) :
15 20 25 30 35 Ea*0 iMevi
1 Z ' 30
r / z.so
; f 1 / /
' 1 / / (a.pn) ;
. -
PsEillï»
E : -- z » 30 :
— — r H o
f / / ' ZTTO _
r /
/ ^ ^ T T i o ;
r
(d.n) !
20 25 30 35 ~ 0 5 10 15 20 25 30 35
:
: Z.so : ^ Z.70 -
-
Z.JO .
~ /
- 2 «90 ;
r 9 0
:
' X (d,3n) Ê
Ë ' - AL
feci 2.X - le*
E ^—' ~ ?i5Q 10=
I
r T 10'
r -
103
[ /z 70 (d.pl
20 25 S 35 0 5 10 15 20 25 3 0 35
—
— / ZtTO : zoo :
yc r
2 = 90
r
(p,2n) j
O 0 5 ¡Í ft 5 Í » 30 35 " O 5 10 15 20 25 M 35 " o 5 t fe Si 25 3ÎT
FIG. A l - 1 3 . Yield f r o m i r r ad i a t i on of t h i c k t a rge t s .
AL = y i e l d a f t e r long i r r a d i a t i o n t i m e s ( t » T ) . AK = y i e ld a f t e r short i r r a d i a t i o n t i m e s ( t = 0 . 1 T ) ;
460 LORENZEN and BRU NE
APPENDIX 2
T A B L E A 2 - I . (p, y) R E S O N A N C E S AS A F U N C T I O N O F P R O T O N E N E R G I E S RANGING F R O M 163 keV T O 3 . 0 MeV*
P r o t o n e n e r g y
(keV) R e a c t i o n
G a m m a - r a y e n e r g y (MeV)
C r o s s -s e c t i o n
(mb)
R e s o n a n c e w i d t h
( F W H M ) (keV)
H a l f - l i f e a n d e n e r g y a
(MeV)
B Ü ( P , , ) C 1 2
F 1 9 ( P . « Y ) O 1 6 ' . . 2 4 , . . , 2 5 M g (p, Y ) A 1
Al27(p,Y)Si28
N a 2 3 ( p , Y ) M g 2 4
C 1 4 ( P . Y ) N 1 5
N 1 4 ( P , Y ) O 1 5
, , 2 7 , , „ . 2 8 A I ( P . Y ) S I
Mg 2 6(p, Y)Al 2 7
N a 2 3 ( p , Y ) M g 2 4
M g 2 5 ( p , Y ) A 12 6
Al27(p,Y)Si28
- . 2 9 , , „ 3 0 S i ( p , Y ) P
B « 9 ( p , y ) B 1 0
Mg 2 6(p, Y)Al 2 7
F 1 9(p,o Y)0 1 6
P 3 1(p, Y)S 3 2
C (p,Y)N N (p,Y)0 . . 1 5 , , _ 1 2 N (p,ay)C
N a 2 3 ( p , Y ) M g 2 4
Mg 2 5(p, Y)Al 2 6
. , 2 7 , , C . 2 8 AI (p,Y)Si
S Í 2 9 ( P , Y ) P 3 0
2 4 , , . , 2 5 M g ( P - Y ^ N (p,aY)C N (p,Y)0 . . 2 5 , , . , 2 6 M g (p,Y)Al . , 2 7 , , C . 2 8 AI (p,Y)Si
P 3 1 ( p , v ) s 3 2
Li 7(p, Y)B e8
16. 11, 11. 68, 4.43 7. 12, 6. 92, 6. 13 2.06, 1. 56, 0.95
6.82, 6. 14, 1. 47
10. 6, 7.8, 6.7 6. 19, 4. 86, 0. 82 7. 6, 7.,2, 6. 2
5. 88, 5. 17 6.9, 6. 2, 5. 2 7.74, 5.85, 5. 61 7. 12, 6. 92, 6. 13
10. 5, 7. 1, 5. 4 12. 43, 6. 37 4. 43 6. 2 6
6. 26, 4. 6?, 3. 5? 7. 3. 5. 1. 2. 8 5. 25, 0.70 2. 70, 2. 25, 0. 89 4. 43 6. 46 6. 72, 6. 30, 4. 66?
17.64, 14.74, 12. 24
0. 157 > 0 . 2
160
0. 007 0. 03 2
4
300
0. 001
7 1
1 ?
0. 3
1. 6
< 1
0.8 12
< 1
160
3
94 94
1
0.9 0.9
34 12
7. 2 s; 3. 3
2.03 min; 1.7
6. 4 s; 3. 2
2. 50 min; 3. 2
6. 4 s; 3. 2
2.5 min; 3.2 7. 2s; 3. 3
6. 4 s; 3. 2
F r o m : B U T L E R , J . W . , T a b l e of (p, T ) R e s o n a n c e s , R e p . N R L - 5 2 8 2 (1959) , w i t h k ind p e r m i s s i o n f r o m t h e a u t h o r .
a F r o m : C h a r t of t h e N u c l i d e s , 3 r d E d n , F e d e r a l M i n i s t r y f o r E d u c a t i o n and S c i e n c e , B o n n (1968 ) .
CHARGED-P ARTICLE NUCLEAR EXCITATION FUNCTIONS 461
T A B L E A2-I (cont. )
P r o t o n e n e r g y (keV)
R e a c t i o n G a m m a - r a y e n e r g y
(MeV)
C r o s s -s e c t i o n
(mb)
R e s o n a n c e w i d t h
( F W H M ) (keV)
H a l f - l i f e a n d ß + e n e r g y
(MeV)
.. 23, , w 24 N a (p,y)Mg C (p,Y)N Mg 2 6(p, v)Al 2 7
-12, ...13 C (P, y)N Mg 2 5(p, Y)Al 2 6
i t 1 ' / \ r > 1 6 F (p.ayJO Mg 2 5(p, Y)Al 2 6
c.30, ,„31 Si (p,Y)P Al27(p,Y)Si28
Al27(p,Y)Si28
N a 2 3 ( p , Y ) M g 2 4
Mg 2 5(p, Y)Al 2 6
Mg 2 5(p, Y)Al 2 6
-14, ,..15 C (p,Y)N „31, , c32 P (p,Y)S C (p,Y)N Mg 2 5(p, Y)Al 2 6
N a 2 3 ( p , Y ) M g 2 4
S 3 2(p, v)Cl 3 3
F 1 9 ( p , a Y ) 0 1 6
M g 2 5 ( p , Y ) A 12 6
Al27(p,Y)Si28
Si 3 0(p, Y)P 3 1
O 1 8 ( p > y ) F 1 9
Al27(p, Y)Si28
Ne 2 2(p, Y ) N a 2 3
C 1 4 ( p , Y ) N 1 5
P 3 1(p, Y)S 3 2
r- 40, x c 41 Ca (p,Y)Sc ,.27, ,c.28 Al (p,Y)Si Ne 2 2(p, Y)Na 2 3
Mg 2 6(p, Y)Al 2 7
.. 25, ...26 M g (p,Y)Al
7.85, 7. 68, 5. 71 2. 36
7. 12, 6. 92, 6. 13 6. 36, 4. 24, 4. 21 ? 7. 75, 6. 48, 4. 62 12. 07 10. 29 10. 8, 8. 0, 6. 9
10. 7, 5. 3
8. 06, 4. 11 6. 85? , 6. 43, 4. 28 10. 9. 8. 0, 7. 0 2.86, 2.05, 0.806 7.12, 6. 92, 6. 13 6.88?, 6.46, 4. 34
7. 87 8. 5 10. 41, 7. 59, 1. 77 9. 40 10. 8, 5. 3
10. 43, 7. 61
7. 88, 6. 68, 5. 9
0. 127
>32
1. 44
7. 1
0. 8
39. 5
0. 9 5
< 0 . 20
<0. 17 0. 8 3 3
32. 5
30
<1
2. 6 <0. 06
17
<0. 06
9. 96 min; 1. 2 6. 4 e.; 3. 2
6. 4 e; 3. 2
6. 4 s; 3. 2 6 , 4 s; 3.2
6. 4 s; 3. 2
2. 53 s; 4. 5
6. 4 s; 3. 2
0. 596 s; 5. 6
6. 4 s; 3. 2
462 LORENZEN and BRUNE
T A B L E A 2 - I (cont . )
P r o t o n e n e r g y
(keV) R e a c t i o n
G a m m a - r a y e n e r g y (MeV)
C r o s s -s e c t i o n
(mb)
R e s o n a n c e w i d t h
( F W H M ) (keV)
H a l f - l i f e and ß + e n e r g y
(MeV)
F 1 9(p, Y)Ne 2 0
F 1 9(p.a Y)0 1 6
B U ( p , v ) C 1 2
N a 2 3 ( p , Y ) M g 2 4
M g 2 5 ( P , Y ) A l 2 6
„.30, ,_31 Si (p,Y)P .,27, ,„.28 AI (p,Y)Si Si 2 9(p, Y)P 3 0
N14(p,Y)015 Si(p,Y)P N (p, Y)0 Si(p,Y)P Mg 2 5(p, Y)Al 2 6
M g 2 6 ( P ( Y ) A l 2 7
Ni 6 0(p, Y)Cu 6 1
„.29, ,„30 Si (p,Y)P Al27(p,Y)Si28
Al27(p,Y)Si28
.T 23, 24 N a (p,Y)Mg .,27, ,„.28 AI (p,Y)Si Na 2 3(p, Y)Mg 4
.,27, .„.28 AI (p,Y)Si „.30, ,„31 Si (p,Y)P Ne 2 1(p, Y)Na 2 2
..27, ,„.28 AI (p,Y)Si
.,27, ,„.28 AI (p,Y)Si „.30, .„31 Si (p,Y)P
25, ,.,26 M g ( P . ^ A l „19, F (p, 0"y)O Si(p,Y)P Mg 2 6(p, Y)Al 2 7
P (p. Y)S 25, ,.,26
M g (P . Y ) a 1 24, -,.,25 M g (p,Y)Al
P (p.Y)s Ne 2 2(p, Y)Na 2 3
11.88, 1.63 7. 12, 6. 92, 6. 13 12. 15, 4. 43 11. 0, 8. 1, 7. 1 6. 55, 5. 21, 3. 30 7. 92, 6. 65, 1. 27 10. 45, 7 63 6. 26, 4. 29, 3. 51 8. 0
6.72
6. 59, 4. 93, 2. 46 6. 74, 5. 96, 5. 28 <5. 52 3. 33
11
8
6. 71, 4. 57, 1. 27
12. 33 8.00, 6.73, 1. 27 6. 65?, 4. 99, 3. 90
7. 39 7. 69, 5. 04, 4. 56 3. 09, 2. 64, 2. 14 9. 64
0. 5 57 0. 050
0. 01 evb
6.
6. 322
i l
<1
100
40
< 1
< 0 .
<0 .
<3 < 1
<3 <0,
< 0 .
0 .
16 09
06
08
009
7.6
1. 5
6. 4 s; 3. 2
2. 5 min; 3. 2
2.03 min; 1.7
6.4 s; 3. 2
3. 3 h; 1. 2 2. 5 min; 3. 2
2. 62yr; 0.5, 1.
6. 4 s; 3.2
6. 4 s; 3. 2
7. 2 s; 3. 3
CHARGED-PARTICLE NUCLEAR EXCITATION FUNCTIONS 463
TABLE A2-I (cont . )
P r o t o n e n e r g y
(keV)
G a m m a - r a y e n e r g y (MeV)
C r o s s -s e c t i o n
(mb)
R e s o n a n c e w i d t h
( F W H M ) (keV)
H a l f - l i f e and ß+ e n e r g y
(MeV)
„19, > 016
F (p, ay)0
M g 2 6 ( p , Y ) A l2 7
Si 3 0(p, Y)P3 1
O 1 8 ( P , y ) F1 9
Ne 2 2(p, Y)Na2 3
C l 3 5 ( P l Y ) A3 6
Ni 5 8(p, Y)Cu5 9
F 1 9 ( p . c Y ) 01 6
N a 2 3 ( p . Y ) M g2 4
„39, 40 K (p , v)Ca Al27(p.Y)Si
28
C l 3 5 ( P l Y ) A3 6
M g 2 5 ( p ( Y ) A l2 6
„31, ,„32 P (p. Y)S
Si(p.Y)P
Ni 6 0(p, Y)Cu6 1
M1®/ , „ 1 2
N (p,o<Y)C
A 4 0(p, y)K4 1
Ne 2 2(p, Y ) N a2 3
F 1 9 ( p , o y ) O1 6
S Í 2 9 ( P , Y ) P 3 0
..27, ,„.28 Al (p,Y)Si „39, 40 K (p,Y)Ca
Ne 2 2(p, Y)Na2 3
F (p, a y ) 0
Al27(p,Y)Si28
Mg 2 5(p, Y)Al2 6
.. 22, ,.T 23 N e (p,Y)Na
Si(p,Y)P
Ni 5 8(p, Y)Cu5 9
.. 26, ,.,27 M g (P , Y)A1
Si 3 0(p, Y)P3 1
Si 2 9(p, Y)P3 0
Mg 2 5(p. Y)Al2 6
F 1 9 ( P . Y ) N e2 °
7. 12, 6. 92, 6. 13
6.82, 4.80, 1. 27
8. 8
9. 61, 9. 17, 5.70
7.2, 5. 1, 4. 3
C4. 26
7. 12, 6.'92, 6. 13
11
9?
¿5. 69
4. 43
9. 66?, 9. 22?
7. 12, 6. 92, 6. 13
5.74, 4.48
9?
9. 69?, 9. 25?
7. 12, 6. 92, 6. 13
6. 99, 5. 15
£4. 35
8. 19, 6. 92, 1. 27
6. 49, 5. 04, 4. 52
5. 17, 4. 70, 3. 57?
19
0. 007 evb
540
0. 01 evb
800
23
180
0. 14 evb
6. 5
40
¿ 5
< 1
4. 5
< 1
< 1
2. 2
5. 1
<0. 19
8 . 6
0. 34
< 1
11 s; 3.7
3. 3 h; 1. 2
2.5 min; 3. 2
6. 4 s; 3. 2
81 s; 3. 7
2. 5 min; 3. 2
6. 4 s; 3. 2
464 LORENZEN and BRUNE.
TABLE A l - I (cont. )
P r o t o n e n e r g y (keV)
R e a c t i o n G a m m a - r a y e n e r g y
(MeV)
C r o s s -s e c t i o n
( m b )
R e s o n a n c e w i d t h
(FW HM) (keV)
S i 3 0 ( p . Y ) P 3 1
K 3 9 ( p . Y ) C a4 0
Ne 2 2(p, Y)Na2 3
N a 2 3 ( p , Y ) M g2 4
Mg 2 5(p, Y)Al2 6
Be 9(p l Y)B1 0
Mg 2 6(p, Y)Al2 7
Al27(p,Y)Si28
-.30/ ,„31 Si (p,Y)P -.30, ,„31 Si (p, Y)P
Al27(p,Y)Si28
Ne 2 2(p, Y ) N a2 3
Ge ? 4(p, Y)As7 5
Ni 5 8(p, Y)Cu5 9
N a 2 3 ( p , Y ) M g2 4
26, ,.,27 M g (p,Y)Al
Na 2 3(p, Y ) M g2 4
..27, ,c.28 AI (p, Y)Si
Ni 6 0(p, Y)Cu6 1
Li7(p,Y)Be8
N i 5 ( P , ^ 0 1 6
N 1 5(p,« Y)C1 2
Mg 2 5(p, Y)Al2 6
P 3 1 ( P , Y ) S 3 2
A 4 0 ( P , Y ) K4 1
Mg 2 6(p, Y)Al2 7
N 1 4 ( p , y ) O1 5
Ni 6 0(p, Y)Cu6 1
„31, , c32 P (p, Y)S
Ne 2 2(p, Y ) N a2 3
Cl 3 7(p, Y)Ar3 8
Ni 6 0(p, Y)Cu6 1
.40, ,„41 A (p,Y)K
Be 9(p, Y)B1 0
Mg 2 5(p, Y)Al2 6
4. 96, 4. 84, 1. 27
9?
7. 5, 6.8, 5. 8
10. 78, 7. 93, 1. 77
6. 98, 6. 02, 1. 27
8. 25, 6. 98, 5. 12
¿4. 41
<5. 82
18. 15, 15. 25, 0. 478
13. 09
4. 43
8. 34, 5. 27, 3. 04
<5. 86
9. 1, 7. 5, 6. 3
£5. 87
6. 9, 5. 4, 0. 7
0. 007 evb
0. 02 evb
1
15
0. 05 evb
0. 03 evb
<1
89
0. 05
<1
<2. 5
< 1
£0. 5
6. 6
<0. 24
< 1
168
130
130
<5
4
< 1
6
<5
< 1
3.8
H a l f - l i f e and ß + e n e r g y
(MeV)
6. 4 s; 3. 2
81 s; 3. 7
3. 3 h; 1.2
6. 4 s; 3. 2
2.03 min; 1.7
3. 3 h; 3. 2
6. 4 s; 3. 2
CHARGED-P ARTICLE NUCLEAR EXCITATION FUNCTIONS 4 6 5
T A B L E A 2 - I ( con t . )
Proton
energy
(keV)
R e a c t i o n G a m m a - r a y e n e r g y
(MeV)
C r o s s -s e c t i o n
( m b )
R e s o n a n c e w i d t h
( F W H M ) (keV)
H a l f - l i f e a n d ß+ e n e r g y
(MeV)
N a 2 3 ( p , Y ) M g2 4
Ne 2 2(p, y)Na 2 3
..27, >„.28 Al (p,Y)Si
F 1 9(p, Y)Ne2 0
F19(p,OY)o16
-.37, 38 C I ( p . Y ) A r .,27, <„.38 Al (p,Y)Si r- 74, 75 G e (p, Y)A s
A 4 0(p, Y)K4 1
Ni 5 8(p, Y)Cu5 9
P ( P . Y ) s
Cl 3 5(p, Y)Ar3 6
Mg 2 5(p, Y)Al2 6
Ne 2 2(p, Y ) N a2 3
.,27, «„.28 Al (p,Y)Si
P 3 1(p, Y)S3 2
K 3 9(p. Y)Ca4 0
f ' V ^ O 1 6
Ni 6 0(p, Y)Cu6 1
Cl 3 7(p. Y)Ar3 8
F 1 9(p,<y Y)01 6
B ^ i p . y J C 1 1
P 3 1 ( p . y ) S 3 2
C13(p.Y)N14
C14(P.Y)N15
Ne 2 0(p, Y)Na2 1
Na 2 3(p, Y ) M g2 4
Ni 6 0(p, Y)Cu6 1
Ge 7 4(p, Y)As7 5
O18(P,Y)F19
Al27(p,Y)Si28
M g 2 6 ( P l Y ) A l2 7
N a 2 3 ( p , Y ) M g2 4
B10(P,Y)C" ..27, >„.28 Al (p,Y)Si
12. 28, 8.84, 1. 63
7. 12, 6. 92, 6. 13
¿4. 50
9.92
9. 5, 6. 1, 3.8
¿5. 92
9.1, 7.5, 6. 3
7. 12, 6. 92, 6.-13
9.7, 5.5?, 4.2?
7.71
8. 62, 4. 67, 2. 39
11. 30
<4
¿5. 96
6.3
9.4
>0. 05
> 1 3
0. 05 evb
0. 04 evb
15
0.0055
0. 56
0. 15 evb
0. 0075
1. 1
<0 . 11
0.7
0.7
< 1
9. 5
0
5
¿ 5
22
<1
<5
2.
450
6
12
1.
< 1
4.
1
0 .
2.
570
0.
80
5
25
5
71
81 s; 3.7
6. 4 s; 3. 2
3. 3 h; 1. 2
20.3 min; 1.0
22. 8 s; 2. 5
3.3 h; 1.2
20. 3 min; 1. 0
466 LORENZEN and BRUNE
TABLE A2-I (cont. )
P r o t o n e n e r g y
(keV) R e a c t i o n
G a m m a - r a y e n e r g y (MeV)
C r o s s -s e c t i o n
( m b )
R e s o n a n c e w i d t h
(FW H M ) (keV)
H a l f - l i f e and ß+ e n e r g y
(MeV)
Mg 2 5(p, Y)Al2 6
TT1**! \ 0 1 6 F (p, a y ) 0 ,r.60, 61 Ni (p,y)Cu
Al27(p,Y)Si28
M « 2 4 ( P , Y ) A I 2 5
...60, 61 Ni (p,Y)Cu
N 1 5 ( P . « V ) C 1 2
Al27(p,v)Si28
N a 2 3 ( p , Y ) M g2 4
r- 74/ 75 G e (p,y)As ...58, 59 Nl (p.y)Cu .40, >„41 A (p,y)K
Ni 6 0(p, Y)Cu6 1
Ni 6 0(p, Y)Cu6 1
P 3 1 ( P . V ) S 3 2
C 1 3 ( P , Y ) N 1 4
Mg 2 6(p, Y)Al2 7
Ge 7 4(p, Y)As7 5
C1 3 5( P. Y)A3 6
.,27, xc.28 AI (p,y)Si
Ne 2 3(p, Y)Na2 3
.. 23, ... 24 N a (p,Y)Mg ..27, .-.28 AI (p,Y)Si
Ne 2 2(p, Y)Na2 3
F 1 9 ( p , a Y ) 01 6
Mg 2 6(p, Y)Al2 7
K 3 9 ( P ( Y ) C a4 0
...58, 59 Ni (p,Y)Cu
C 1 4 ( P , Y ) N 1 5
. . . 6 0 , 61 N I (p,Y)Cu
.,27, ,c.28 AI (p,Y)Si ...58, >_ 59 Ni (p,y)Cu
Ni (p,Y)Cu
N a 2 3 ( p , Y ) M g2 4
F 1 9(p, Y)Ne2 0
7. 12, 6. 92, 6. 13
<5. 99
3. 44, 1. 83, 1. 61
< 6 . 00
4. 43
¿4. 63
< 6 . 0 3
£6. 04
10. 05, 7.80
8. 71
7. 12, 6. 92, 6. 13
9. 6, 6. 3, 3.8
5.4.71
11. 43
<6 . 10
<4. 71
< 6 . 11
11
12. 50, 1. 63
19
0. 13 evb
0. 14 evb
425
0 045 evb
0. 13 evb
0. 1 evb
0. 0 6 2
29
0.11 evb
0. 21 evb
0. 08 evb
0. 25 evb
0. 081
110
< 1
6.3
< 1 0
< 1
22. 5
<0 . 21
0.4
<2. 5
< 1
< 1
9
500
<2. 5
< 0 . 20
<1
19
<5
< 1
43
<1
< 0 . 16
< 1
< 1
2. 1
4.0
6. 4 s; 3. 2
3. 3 h; 1. 2
7. 2 s; 3. 3
3. 3 h; 1. 2
81 s; 3. 7
3. 3 h; 1.2
3. 3 h; 1. 2
3. 3 h; 1. 2
81 s; 3.7
3. 3 h; 1.2
CHARGED-PARTICLE NUCLEAR EXCITATION FUNCTIONS 467
T A B L E A 2 - I ( c o n t . )
P r o t o n e n e r g y (keV)
R e a c t i o n G a m m a - r a y e n e r g y
(MeV)
_ R e s o n a n c e , C r o s s - . . . . H a l f - l i f e a n d
w i d t h 0 + s e c t l o n ( F W H M ) ß e n e r g y
( m b ) (MeV)
Ne 2 2(p, Y)Na2 3
. . . 6 0 , >,. 61 Ni (p,y)Cu
A l (p,Y)Si . . . 6 0 , 61 Ni (p,Y)Cu
G e 7 % , Y ) A s 7 ^ „ 39/ 4 0 K (p,Y)Ca
...60, 61 NI ( P , Y ) C U
Ni 6 0(p , Y)Cu 6 1
F 1 9(p, Y)Ne2 0
F 1 9 ( p , « y ) O1 6
Ne 2 2(p, y)Na 2 3
. . 2 7 , , „ . 2 8 Al (p, Y ) S I „ 3 4 , V —,35 S ( P , Y ) C 1 . . .60, 61 Ni (p,Y)Cu
F 1 9 ( P , „ Y ) O 1 6
Ne 2 2(p, Y)Na2 3
. . . 5 8 , 59 Nl (p.yJCu . . 2 7 , , „ . 2 8 Al ( P , Y ) S I . . 2 7 , , „ . 2 8 Al (P,Y)SI ...60, 61 Ni (p,Y)Cu
Ne 2 2(p, Y)Na2 3
B U ( P , Y ) C 1 2
P 3 1 ( P , Y ) S 3 2
N a 2 3 ( p , Y ) M g 2 4
O 1 8 ( P , V ) F 1 9
P 3 1 ( P , Y ) S 3 2
Ni 6 0( P, Y)Cu6 1
N a 2 3 ( p , Y ) M g2 4
„ 7 4 , , . 7 5 G e (p, Y)As
Ni 5 8(p, Y)Cu5 9
Mg 2 6(p, Y)Al2 7
„ 1 9 , WT 20 F (p,Y)Ne
Ni 6 0(p, Y)Cu6 1
Ne 2 2(p, Y)Na2 3
„ 3 1 , , „ 3 2 P ( p . y ) s
£ 6 . 11
¿6. 12
5. 9 1 , 5. 7 4 , 3. 8
á.6. 13
¿ 6 . 14
7 . 12 , 6. 92 , 6. 13
¿6. 16
7. 12 , 6. 9 2 , 6. 13
4 . 7 7 , 4 . 2 8 , 3. 8 6
< 6 . 17
17. 2 3 , 12. 8 0
8
9. 3
S 6 . 20
9
4 . 8 2 , 4 . 3 3
12. 6 0 , 1. 6 3
< 6 . 22
0. 29 evb
0. 06 evb
0. 4 5 evb
0. 4 0 evb
0 . 1
8 9
0. 15 evb
3 0 0
0 19 evb
0. 2 evb
0 0 5 3
0. 35 evb
1. 7 evb
0. 19
0. 18 evb
< 1
<0 . 16
< 1
5 . 0
£ 5
< 1
< 1
5. 6
5. 6
<0 . 12
<1
11
< 1
0 . 7 0
0 . 29
< 1
1270
15
0 . 5
< 1 5
15
< 1
¿ 0 . 3
< 2 . 5
£ 0 . 0 5
1 5 . 7
<1
12
3. 3 h; 1. 2
3. 3 h; 1.2
3. 3 h; 1.2
3. 3 h; 1.2
3. 3 h; 1. 2
3. 3 h; 1 . 2
3. 3 h; 1.2
3. 3 h; 1.2
468 LORENZEN and BRUNE.
T A B L E A l - I (cont. )
Proton
energy
(keV)
R e a c t i o n G a m m a - r a y e n e r g y
(MeV)
„ R e s o n a n c e „ . . . , C r o s s - H a l f - l i f e and
w i d t h „+ s e c t l 0 n ( F W H M ) ß e n e r g y
(mb) (MeV)
1451
1461
1465
1465
1470
1482
1483
1484
1490
1491
1492
1500
1500
1502
1510
1515
1519
1520?
1522
1527
1529
1530
1533
1538
1540
1544
1550
1559
1566
1566
1570
1571
1577
1580
Ni 6 0(p, Y)Cu6 1
Ni 6°(p, Y)Cu6 1
Mg 2 6(p, Y)Al2 7
Ni 6 0(p, Y)Cu6 1
C (p,Y)N
P 3 1 ( P . Y ) S 3 2
Ni 6 0(p, Y)Cu6 1
-.35, , . 36 CI (p,Y)Ar
M g 2 4 ( p . Y ) A l2 5
Ni 6 0( P f Y)Cu6 1
Ne 2 2(p, Y)Na2 3
C (p,Y)N ..27, ,<..28 Al (p,Y)Si
Ne 2 2(p. Y)Na2 3
35, ,. 36 CI (p,Y)Ar
Ni ( P, Y)Cu
Ni é 0(p, Y)Cu6 1
S I ( P , Y ) P
Ni 5 8(p, Y)Cu5 9
„31, ,„32 P (p. y)s
Ni 6 0(p, Y)Cu6 1
_ 74, 75 G e (p,Y)As -.37, ,. 38 CI (p,Y)Ar
Ni 6 0(p,^Cu 6 1
Ni 5 8(p, Y)Cu5 9
N 1 4 ( p , Y ) 01 5
C 1 3 ( p , y ) N1 4
— 74/ vA 75 Ge (pty)As
K 3 9(p, Y)Ca4°
Ni (p,Y)Cu
AI27(p,Y)Si28
P 3 1 ( P , Y ) S 3 2
Ni 6 0(p, Y)Cu6 1
-.35, 36 CI (p.Y)Ar
6. 24
<6. 25
¿6.25
5.83, 5.10, 3.07
<6. 27
9.9
3. 72, 1. 91
<.(>. 28
11. 61
9.9
<6. 30
<6. 30
<4. 92
¿6. 31
9. 5
6.32
¿ 4 . 9 3
8. 8?
8. 99
9. 9, 6. 6, 6. 1
¿6. 35
<6. 36
10
0. 75 evb
0. 14 evb
0. 11 evb
0. 074
0. 14 evb
0. 14 evb
0. 4 evb
0. 7 evb
0. 012 evb
0. 06 evb
0. 35 evb
0. 020 evb
0. 037
0. 22 evb
0. 35 evb
< 1
< 1
<1
20
6
< 1
<5
0. 3
< 1
520
<5
< 1
< 1
9.0
< 1
14
< 1
9.0
£ 5
< 1
< 1
34
7
6. 5
<5
< 1
7
< 1
¿ 5
3. 3 h; 1. 2
3 . 3 H 1.2
3.3 h; 1. 2
3. 3 h; 1. 2
7. 2 ä; 3. 3
3.3 h; 1. 2
3.3 h; 1. 2
3.3 h; 1. 2
81 s; 3.7
3.3 h; 1.2
3.3h; 1. 2
81 s; 3.7
2.03 min; 1.7
3.3 h; 1.2
3.3 h; 1.2
CHARGED-P ARTICLE NUCLEAR EXCITATION FUNCTIONS 469
TABLE A2-I (cont. )
Proton
energy
(keV)
R e a c t i o n G a m m a - r a y e n e r g y
(MeV)
C r o s s -s e c t i o n
(mb)
R e s o n a n c e w i d t h
( F W H M ) (keV)
H a l f - l i f e a n d ß+ e n e r g y
(MeV)
Ni 5 8(p. Y)Cu5 9
Ni 6 0(p, Y)Cu6 1
d31, .„32 P (P.Y)S
Ni 6 0(p,y)Cu 6 1
Ni 6 0(p, Y)Cu6 1
F 1 9 ( p , « y ) O1 6
S 3 4(p. y)Cl3 5
Si(p,Y)P
Mg 2 4(p, Y)Al2 5
Ni 6 0(p, Y)Cu6 1
Si(p,Y)P
Cl(p,Y)Ar
Ni 6 0(p, Y)Cu6 1
N 1 5(p, ay)C1 2
Al 2 7(p, Y)Si2 8
...60, 61 Ni (p,Y)Cu
Ge 7 4(p, y)As 7^
Cl(p,y)Ar
Ni 6 0(p,y)Cu 6 1
„.28, , _29 Si (p,y)P
Ni 5 8(p,y)Cu 5 9
...60, 61 Nl (p,Y)Cu ..27, ,„.28 Al (p,y)Sl .. 24, v . , 25 M g (p,y)Al
Cl(p,y)Ar
Si(p,y)P
Ni 5 8(p,y)Cu 5 9
Ge 7 4(p, -^As7^
Ni 6 0(p,^Cu 6 1
Cl(p,y)Ar ...60, 61 Nl (p,y)Cu
N i 6 0 ( p , y ) C u 6 1
Si(p,y)P
Cl(p,y)Ar
0 1 8(p,y)F 1 9
¿4. 98
6.37, 5.90
6. 38, 5. 00
6. 39, 5.01
3. 40, 2. 90, 1. 34
6.40, 5.02
<6. 42
4. 43
¿6. 43
S.6. 43
4. 30
£5. 05
6. 44, 5. 97
3. 88, 3. 43, 2. 93
5. 06, 4. 15, 3. 28
S.6. 45
5. 50, 5. 08
£6. 46
9.6
0. 066 evb <1 81 b; 3.7
0. 9 evb <1 3. 3 h; 1.2
5
2. 3 evb <1 3. 3 h; 1. 2
2, 0 evb <1 3. 3 h; 1. 2
6. 0
36 7.2 s; 3. 3
1. 8 evb <1 3. 3 h; 1.2
0. 14 evb <1 3. 3 h; 1. 2
340 68
0. 35 evb <1 3. 3 h; 1.2
-15
0. 29 evb <1 3. 3 h; 1.2
50 4. 20 s; 4. 0
0. 045 evb <1 81 S; 3.7
1. 0 evb <1 3.3h; 1.2
0. 1 7. 2 s; 3. 3
0. 16 evb <1 81 s; 3.7
~15
0. 4 evb <1 3. 3 h; 1. 2
1. 0 evb <1 3 . 3 H 1.2
0. 5 evb <1 3 . 3 K 1.2
15
470 LORENZEN and BRUNE.
T A B L E A l - I (cont . )
P r o t o n e n e r g y
(keV) R e a c t i o n
G a m m a - r a y e n e r g y (MeV)
C r o s s -s e c t i o n
(mb)
R e s o n a n c e w i d t h
( F W H M ) (keV)
H a l f - l i f e and ß+ e n e r g y
(MeV)
S 3 4 ( p , y ) C l 3 5
r- 14/ 1« 75 G e ( p . y) A s
F ( p , Q - Y ) ° ...60, 61 N l ( p . y J C u
C ( p . v ) N ...60, 61 N i ( p . y ) C u
S i ( p , y ) P .,27, .„.28
AI ( p , y ) S i
C l ( p , y ) A r
N i 6 0 ( p , y ) C U6 1
N i 5 8 ( p , y ) C u 5 9
N i 6 0 ( p . y ) C u 6 1
—, 37, ..38 C l ( p , y ) A .,27, ,_.28
AI ( p . y ) S i
N i 6 0 ( p , Y ) C u 6 1
N i 6 0 ( p , y ) C u 6 1
-.14, ,,.15 N ( p , y ) 0 -13- ...14 C ( p , y ) N
C l ( p , y ) A r ...60, 61 N i ( p , y ) C u
N i 6 0 ( p , y ) C u 6 1
C l ( p , y ) A r
0 1 8 ( p , y ) F 1 9
x t . 6 0 / 61 N i ( p , y ) C u
S i ( p , y ) P
A l 2 7 ( p , y ) S i 2 8
...60, 61 N l ( p . y ) C u ...60, 61 N l ( p , y ) C u
S 3 4 ( p , y ) C l 3 5
r 14, , . 75 G e ( p , y) A s
S i ( P , y ) P
N U ( p , y ) 0 1 5
24, . a.25 M g ( p . y ) A l
N i 5 8 ( p , y ) C u 5 9
N i 5 8 ( p , y ) C u 5 9
S i ( p , y ) P
7 . 12 , 6. 9 2 , 6 . 13
6 . 4 8 , 5. 52
3 . 5 i , 2. 3 7 , 1. 14
< 6 . 4 8
< 6 . 4 9
5. 11, 4 . 20
¿ 6 . 50
5. 2 , 3
6. 52
< 6 . 52
9 . 0 ?
9. 17 , 6. 4 3 , 2 . 7 4
< 6 . 54
5,6. 55
9 . 6
< 6 . 55
< 6 . 56
< 6 . 57
9 . 0 ?
4 . 0 5 . 2 . 4 3 , 1. 62
£ 5 . 22
5. 2 3
1. 0 e v b
0 . 0 3 5
0 . 3 e v b
0 . 2 3 e v b
0 . 35 e v b
0 . 11 e v b
0 . 7 e v b
0 . 3 e v b
3 4 0
0 . 5 e v b
0 . 6 e v b
0 . 7 5 e v b
0 . 55 e v b
0 . 4 5 e v b
0 . 0 6 3 e v b
2. 1 e v b
. 3 0
3 5
< 1
70
<1
< 1
<1
<1
£ 5
<1
< 1
5
0 . 0 7 5
< 1
<1
4
< 1
< 1
< 1
20
<1
¿ 0 . 1
3. 3 h ; 1 . 2
9 . 9 8 m i n ; 1 . 2
3 . 3 h ; 1 . 2
3. 3 h ; 1 . 2
8 1 s ; 3. 7
3 . 3 h ; 1 . 2
3. 3 h ; 1 . 2
3 . 3 h ; 1 . 2
2 . 03 m i n ; 1 . 7
3. 3 h ; 1 . 2
3. 3 h ; 1 . 2
3. 3 h ; 1. 2
3 . 3 h ; 1 . 2
3 . 3 h ; 1 . 2
2 . 03 m i n ; 1 . 7
7 . 2 s ; 3 . 3
81 s ; 3 . 7
81 s ; 3 . 7
CHARGED-P ARTICLE NUCLEAR EXCITATION FUNCTIONS 471
T A B L E A2-I (cont. )
P r o t o n e n e r g y
(keV) R e a c t i o n
G a m m a - r a y e n e r g y (MeV)
C r o s s -s e c t i o n
(mb)
R e s o n a n c e w i d t h
( F W H M ) (keV)
H a l f - l i f e and ß + e n e r g y
(MeV)
0. 596 s; 5. 6
24 -15
~15 1. 5
35
40 35 23
~20 0. 15
18 120
7. 2 s; 3. 3
13. 5 55
0. 20 12 45 5
400
4. 20 s; 4. 0
~15 22. 8 s; 2. 5
40
S 3 4(p, Y)Cl 3 5
_ 40, ,„ 41 Ca ( p, y/Sc Si(p,Y)P Al27(p.Y)Si28
D 3 1 / \ C 3 2 p (P.Y)S
r- 74, 75 Ge (p,y)As p31(p,Y)s32
74/ v » 75 Ge (p,y)As O 1 8 ( P , Y ) F 1 9
..27, ...28 Al (p,Y)Si F (p,Q!Y)0 r- 74, , . 75 Ge (p,Y)As N (p,aY)C c.31, ,„32 P (p . Y ) s Li7(p,Y)Be® C (P,y)N .. 24, ..,25 M g (p,Y)Al C 1 4(p, Y)N 1 5
F , 9(p,a Y)0 1 6
..27, .„.28 Al (p,Y)Si „31, ._32 P (P,Y) s
74/ \ a 75 Ge (p,Y)As C (p,Y)N .,27, ,„.28 Al (p,Y)Si c.28, ,„29 Si (p,Y)P C 1 3(p, Y)N 1 4
P 3 1(p, Y)S 3 2
Li 7(p, Y)Be 8
_T 2 0 , 21 N e (p,y)Na r 74, , . 75 Ge (p,Y;As .,27, ,„.28 Al (p,Y)Si .,27, ,„.28 Al (p,Y)Si r- 74, 75 Ge (p,Y)As Al27(p,Y)Si28
Al27(p,Y)Si28
10. 68
9. 8
6-7
4. 43
10. 77 19.0?, 16. 1? 5. 10, 4. 80 3.77, 3.27
6-7
10. 81
4. 74 5. 10, 4. 39 10. 90 19. 12, 16. 21
472 LORENZEN and BRUNE.
TABLE A l - I (cont. )
P r o t o n e n e r g y
(keV) R e a c t i o n
G a m m a - r a y e n e r g y (MeV)
C r o s s -s e c t i o n
(mb)
R e s o n a n c e w i d t h
( F W H M ) .(keV)
H a l f - l i f e and ß+ e n e r g y
(MeV)
74, x. 75 Ge ( p, y)As F1 9(P .a Y)0U
P 3 1(p,y)S 3 2
vc32 P (P.Y)S r- 74, , . 75 Ge (p,Y)As .,27, .„.28 Al (p,Y)Si .,14, ,_15 N (p,Y)0 .. 24, ,.,25 M g (p,Y)Al Ge 7 4(p, Y)As 7 5
N14(p.Y)o15
F l 9(p.a Y)0 1 6
Si(p,Y)P r- 74, ,. 75 Ge ( P > Y )As Al27(p,Y)Si28
Si(p,Y)P Si(p.Y)P Si(p,Y)P Be 9(p, y)B 1 0
9 6 Be (p,oY)Li Si(p,Y)P .,14, ,-.15 N (p,Y)0 Si(p,Y)P Ge 7 4(p, Y)As 7 5
B U ( p , V ) C 1 2
F 1 9 ( P > O Y ) o 1 6
/- 74, ,. 75 Ge (p,Y)As F 1 9 ( p l O Y ) 0 1 6
.,15, ,,.12 N (p ,orY)C
6-7 11.09 11. 11
9. 5? 3. 65
9.7? 6-7
8. 1, 0.7 3. 56
9. 8?
13. 94, 4. 43, 2. 14 6-7
6-7 4. 43 750
27 85 8 8 15
14 0. 3
11
11
30
15
39 39
1 0 0 0
44 300 90 10
60
45
2.03 min; 1.7 7. 2 s; 3. 3
2.03 min; 1.7
2. 03 min; 1. 7
CHARGED-P ARTICLE NUCLEAR EXCITATION FUNCTIONS 4 7 3
APPENDIX 3
B I B L I O G R A P H Y
1. C r o s s - s e c t i o n s f o r c h a r g e d - p a r t i c l e r e a c t i o n s a t h i g h e r e n e r g i e s
LANGE, J . , MUNZEL, H . , Rep. KFK-767 (1968).
KELLER, K . A . , LANGE, J . , MÜNZEL, H . , PFENNIG, G . , in Landolt-Börnstein, New Series 1 /5 , Springer Verlag (1973), V o l . a , Q-Values ; Vol.b-. Excitation Functions for Charged Par t ic le Induced Nuclear Reactions; Vol. c: Systematics of Excitation Functions for Nuclear Reactions Induced by p, d, s H e and a -Pa r t i c l e s .
2 . (p, 7 ) r e a c t i o n s
BUTLER, J. W. , Rep. NRL-5282 (1959).
3 . D e t e c t i o n l i m i t s and s e n s i t i v i t i e s f o r c h a r g e d - p a r t i c l e r e a c t i o n s on l igh t e l e m e n t s
MARKOWITZ, S . S . , MAHONY, J . D . , Anal . Chem. 34(1962) 329.
RICCI, E . , HAHN, R. L . , Anal. C h e m . 39 (1967) 794; 40 (1968) 54.
ENGELMAN, C h . , Isot. Radiat. Technol . 8 (1970) 118.
ENGELMAN, C h . , J. Radioanal. C h e m . 7 (1971) 89 , 281.
4 . C o m p i l a t i o n s of c h a r g e d - p a r t i c l e r e a c t i o n c r o s s - s e c t i o n s ; S p e c i a l topics c o n c e r n i n g c h a r g e d p a r t i c l e s
JARMIE, N . , SEAGRAVE, J . D . , Rep. LA-2014 (1956) P-F.
SMITH, D.B. (Comp, and Ed. ) , Rep. LA-2424 (1961) Ne-Cr .
AJZENBERG-SELOVE, F . , LAURITSEN, T . , Nucl. Phys. 11 (1959) 1.
AJZENBERG-SELOVE, F . , Rep. LAP-99 (1970).
AJZENBERG-SELOVE, F . , Rep. LAP-100 (1971).
PHOTONUCLEAR CROSS-SECTIONS
B. BÜLOW, B. FORKMAN Department of Physics, University of Lund and Department of Nuclear Physics, Lund Institute of Technology, Lund, Sweden
ABSTRACT: A compilation is given of about sixty (y,n) cross-sections in the giant resonance region, which are sometimes complemented with cross-sections for other types of reactions. Special reference is taken to needs in activation analysis.
INTRODUCTION
P h o t o n u c l e a r a b s o r p t i o n
T h e p h o t o n u c l e a r a b s o r p t i o n c r o s s - s e c t i o n i s c o m p a r a t i v e l y s m a l l and h a s a m a x i m u m v a l u e of only a few m i l l i b a r n s p e r n u c l e ó n . If a p h o t o n u c l e a r i n t e r a c t i o n t a k e s p l a c e , t he n u c l e u s c a n be exc i t ed in a n u m b e r of d i f f e r e n t w a y s , depend ing on the e n e r g y of the pho ton .
At low e n e r g i e s (10-25 MeV), the dominan t f e a t u r e of t he p h o t o - a b s o r p t i o n c r o s s - s e c t i o n i s the g i an t r e s o n a n c e which o c c u r s in a l l e l e m e n t s . L igh t nuc l e i have a r e s o n a n c e peak , a t an e n e r g y a r o u n d 22 MeV, which v a l u e d e c r e a s e s to about 13 MeV fo r heavy ones (F ig . 1).
T h e r e s o n a n c e wid th i s about 4 MeV f o r s p h e r i c a l nuc l e i and i n c r e a s e s to abou t 8 MeV fo r s t r o n g l y d e f o r m e d ones (F ig . 2). T h e e n e r g y d e p e n d e n c e of t h e g i a n t r e s o n a n c e a b s o r p t i o n c r o s s - s e c t i o n f o r m e d i u m and heavy n u c l e i
100r ~l—l-!—]—I I I I I
< 8 0 -
0)
S 6 0 h
I I I i ! I I i ! I
4OLJ I I I i I I I i I I l.i 40 120
A
I " ' I 160 200 240
FIG. l . Giant resonance energy times A3 as a function of A ( R e f . [ l ] ) . Data for light elements from total absorption experiments and for heavy elements from neutron yield.
475
476 BÜLOW and FORKMAN
has of ten been a p p r o x i m a t e d by a L o r e n t z - s h a p e d r e s o n a n c e l ine , w i th the width T:
k2r2 a ( k ) = °0 ( k s . k 2 ) 2 + k 2 r 2
F o r d e f o r m e d n u c l e i , t h e giant r e s o n a n c e s p l i t s in to two m a i n p e a k s . F o r l igh t nuc le i , t he g ian t r e s o n a n c e s h o w s c o n s i d e r a b l y f ine s t r u c t u r e re la ted m a i n l y to the p r o p e r t i e s of i nd iv idua l l e v e l s but a l s o to c o l l e c t i v e s u r f a c e v i b r a t i o n s .
The g i a n t r e s o n a n c e r e s u l t s p r i m a r i l y f r o m e l e c t r i c d ipo le a b s o r p t i o n and can b e exp l a ined a s a v i b r a t i o n of the g r o u p s of n e u t r o n s and p r o t o n s conf ined in a n u c l e u s wi th a r i g id s u r f a c e . T h e c r o s s - s e c t i o n i n t e g r a t e d o v e r the r e s o n a n c e i s of t h e o r d e r of t he c l a s s i c a l v a l u e of the d ipole s u m
JadE = 0 . 0 6 N Z / A ( M e V - b a r n s ) o
where E , i s the m e s o n p r o d u c t i o n t h r e s h o l d and cr i s t he e l e c t r i c d ipo le a b s o r p t i o n c r o s s - s e c t i o n . C o n s e q u e n t l y , the i n t e g r a t e d c r o s s - s e c t i o n i s a p p r o x i m a t e l y p r o p o r t i o n a l to the m a s s n u m b e r . In F i g . 3 the i n t e g r a t e d c r o s s - s e c t i o n s up to 30 M e V a r e g iven .
8 _
r (MeV)
"I
£ 'o.
% r f i " " I f 1 1 5
T Í «IT S-
Iff <T I
- IN = 5 0 )
£ <7- I s if lO
f t ' ¿ i
,1
h i , i ¿ í l J f
*w i j c «a I I . d«-
t " t (Z = 5 0 )(N = 8 2 Î
<D s j
¿i
• f . a
<N = 1 2 6 . Z = 82 )
100 1 5 0 200
FIG.2 . Giant resonance width as a function of A (Ref.[2])_
PHOTONUCLEAR CROSS-SECTION S 477
I 1 ' 1 I I I I I I I I I I 1 I I I I I 1 I
•o — o o < 0.8 —
0.4 —
• I • 1 • I • 1 • I I 1 I I • 1 • I • 1 I I • 40 80 120 160
MASS NUMBER, A 200 240
FIG.3 . Integrated absorption cross-sections normal ized to the classical dipole sum rule value. For more de ta i led informat ion see Ref.[ 3 ] .
In t he e n e r g y r e g i o n a b o v e t h e g i a n t r e s o n a n c e , bu t b e l o w abou t 200 M e V , t h e p h o t o n m a i n l y i n t e r a c t s w i t h n - p c l u s t e r s ( q u a s i - d e u t e r o n s ) i n s i d e t he n u c l e u s . In t h i s r e g i o n the c r o s s - s e c t i o n d r o p s to s m a l l v a l u e s . T h u s t he i n t e g r a t e d c r o s s - s e c t i o n s g i v e n i n F i g . 3 a r e e x p e c t e d to a l m o s t e x h a u s t t h e d ipo l e s u m . New r e s o n a n c e s a p p e a r i n t h e c r o s s - s e c t i o n c u r v e when t h e p h o t o n e n e r g i e s a r e a b o v e the p h o t o m e s o n t h r e s h o l d a t a b o u t 150 M e V ( F i g . 4) . T h e s e r e s o n a n c e s a r e r e l a t e d to t he b a r y o n r e s o n a n c e s . T h e a v e r a g e p h o t o n u c l e a r c r o s s - s e c t i o n i s abou t 0 . 3 0 m b p e r n u c l e ó n f o r pho ton e n e r g i e s b e t w e e n 300 M e V and 1000 M e V .
N u c l i d e s p r o d u c e d i n p h o t o n u c l e a r r e a c t i o n s
In t h e g i a n t r e s o n a n c e r e g i o n , t h e m o s t p r o b a b l e r e s u l t of p h o t o n u c l e a r a b s o r p t i o n i s t h e e m i s s i o n of a s i n g l e n e u t r o n , bu t o t h e r p r o c e s s e s m u s t a l s o be c o n s i d e r e d s u c h a s t he e m i s s i o n of g a m m a r a y s , t he e m i s s i o n of m o r e t h a n o n e n e u t r o n and , p a r t i c u l a r l y f o r l i g h t n u c l e i , t he e m i s s i o n of c h a r g e d p a r t i c l e s . M e d i u m - and h i g h - e n e r g y p h o t o n s p a l l a t i o n y i e l d s a r e s y s t e m a t i c a l l y t r e a t e d in R e f . [ 4 ] .
B r e m s s t r a h l u n g s p e c t r u m
S i n c e t h e r e e x i s t no i n t e n s e m o n o c h r o m a t i c p h o t o n s o u r c e s , t he b r e m s -s t r a h l u n g b e a m o b t a i n e d w h e n e l e c t r o n s hi t a t a r g e t i s u s e d a s p h o t o n s o u r c e i n a l m o s t a l l p h o t o a c t i v a t i o n s t u d i e s . T h e e n e r g y s p e c t r u m of t h e p h o t o n s i n a b r e m s s t r a h l u n g b e a m f r o m a t h i n t a r g e t i s w e l l known and i s s h o w n in F i g . 5.
478 BÜLOW and FORKMAN
PHOTON WAVELENGTH (cm)
I f f " 1(J'2 IQ"'3
FIG. 4 . Reaction mechanism and cross-section as a function of the photon wavelength and energy for 191 Au.
T h e s p e c t r a s h o w n a r e c a l c u l a t e d f r o m t h e s p e c t r u m f o r m u l a e g i v e n by Schi f f [ 6 ] . T h e a v e r a g e ang l e of e m i s s i o n of t he p h o t o n s 0 i s , f o r r e l a t i v i s t i c e l e c t r o n s ,
ë = m 0 c 2 / k 0
k 0 b e i n g the m a x i m u m p h o t o n e n e r g y .
B r e m s S t r a h l u n g a c t i v a t i o n y i e l d
L e t n(k, kQ)dk be t h e n u m b e r of p h o t o n s w i t h e n e r g i e s b e t w e e n k and k + dk p e r un i t r a d i a t o r t h i c k n e s s p e r s e c o n d in a b r e m s s t r a h l u n g b e a m w h e r e k 0 i s t he m a x i m u m p h o t o n e n e r g y .
T h e e n e r g y c o n t e n t of the b e a m in t he s a m p l e i s t h e n
U ( k 0 ) = J k n ( k , k o ) f ( k ) d k
o
PHOTONUCLEAR CROSS-SECTION S 4 7 9
w h e r e f(k) i s a c o r r e c t i o n f a c t o r w h i c h a c c o u n t s f o r t h e d i s t o r t i o n of t h e b r e m s s t r a h l u n g s p e c t r u m by t h e e f f e c t s of p h o t o n a b s o r p t i o n in t h e m a c h i n e t a r g e t , i n t h e w a l l s of t h e a c c e l e r a t o r c h a m b e r and in t h e s a m p l e .
W e d e f i n e t h e n u m b e r of e q u i v a l e n t q u a n t a Q by
Q = ^ u ( k 0 )
i . e . Q i s the n u m b e r of q u a n t a w i t h e n e r g y k 0 t h a t h a v e t he s a m e e n e r g y c o n t e n t a s t he b r e m s s t r a h l u n g b e a m and d e f i n e t he c r o s s - s e c t i o n p e r e q u i v a l e n t q u a n t u m , a by
ko / c r (k)n(k ,k 0 ) f (k)dk
®q( k 0) = " q
T h e b r e m s s t r a h l u n g a c t i v a t i o n y i e l d m e a s u r e d i n m o n i t o r r e s p o n s e u n i t s c a n be w r i t t e n
Y(k0) / u ( k ) n ( k , k . ) f (k)dk iL
U E ( k 0 ) k 0 R ( k 0 )
T h e m o n i t o r m e a s u r e s on ly s o m e p a r t of t h e e n e r g y c o n t e n t of t h e b e a m and t h u s R(k 0 ) g i v e s t he s e n s i t i v i t y of t h e m o n i t o r f o r a k 0 -b r e m s s t r a h l u n g b e a m .
480 BÜLOW and FORKMAN
W h i l e f(k) and R(k 0 ) a r e q u a n t i t i e s s p e c i f i c f o r t h e l a b o r a t o r y , n(k, k0) c a n b e t a b u l a t e d f o r a b r e m s s t r a h l u n g s p e c t r u m . T h e r e l a t i o n b e t w e e n the n u m b e r of p h o t o n s p e r M e V p e r i n c i d e n t e l e c t r o n p e r g • c m " 1 of a r a d i a t o r (Z, A) i s
n ( k , k 0 ) cr(k,k0)b r e m s
7 2 1
= 1 1 1 . 8 4 = j - - $ ( Z , k ,k„ ) (MeV"1 • g " 1 • c m 2 ) w h e r e r e i s t he c l a s s i c a l e l e c t r o n r a d i u s
N a i s t h e A v o g a d r o n u m b e r a i s t h e f i n e s t r u c t u r e c o n s t a n t .
In T a b l e s I a n d I I , $ ( Z , k , kQ) d e f i n e d f r o m the b r e m s s t r a h l u n g c r o s s -s e c t i o n i n t e g r a t e d o v e r a n g l e s g i v e n by Sch i f f [ 6 ] h a s b e e n u s e d . T h e v a l u e of Z u s e d i n $ ( Z , k, k0) w a s 78 ( p l a t i n u m ) and t h e s c r e e n i n g c o n s t a n t w a s t a k e n to b e 111.
ko
J $ ( k , k 0 )dk i s t a b u l a t e d in T a b l e I , $ ( k , k0) i s t a b u l a t e d in T a b l e II f o r
d i f f e r e n t k 0 i n t h e g i a n t r e s o n a n c e r e g i o n .
T A B L E I . V A L U E S O F J ® ( k , kQ)dk (Ref . [7]) o
ko ko / 4>(k, k0)dk 0
(MeV) (MeV)
10 03.55488
13 04 .78641
16 06.04665
19 07.32788
22 08.62522
27 10.81470
32 13.02999
36 14.81454
44 18.41618
52 22 .04727
PHOTO NUCLEAR CROSS-SECTIONS
T A B L E II . V A L U E S O F $ ( k , k„) ( R e f . [7])
481
k $ ( k , k Q ) k $ ( k , k ) 0
k $ ( k , k o )
( M e V ) ( k o = 1 0 H e V ) (MeV) ( k = 1 3 M e V ) 0
( M e V ) ( k = l 6 M e V ) 0
1 0 . 0 2 9 3 3 1 3 . 0 2 8 1 4 1 6 . 0 2 7 3 9
0 9 . 1 6 4 2 6 12 • 1 6 2 3 9 1 5 . 1 6 1 4 0
0 8 . 2 2 6 6 0 11 . 2 2 2 7 1 1 4 . 2 2 1 0 5
0 7 . 2 7 0 6 3 1 0 . 2 6 2 2 2 1 3 . 2 5 8 8 3
0 6 . 3 0 9 2 6 0 9 . 2 9 3 2 1 12 . 2 8 6 7 6
0 5 . 3 4 8 2 1 0 8 . 3 2 0 9 3 11 . 3 0 9 8 5
0 4 • 3 9 0 8 5 0 7 . 3 4 8 2 9 1 0 . 3 3 0 8 1
0 3 . 4 3 9 5 9 0 6 . 3 7 7 2 0 0 9 • 3 5 1 3 6
0 2 . 4 9 6 2 9 0 5 . 4 0 9 0 0 0 8 • 3 7 2 6 9
0.1 . 5 6 2 5 2 0 4 . 4 4 4 6 9 0 7 • 3 9 5 6 4
0 0 . 6 4 0 1 0 0 3 . 4 8 5 0 4 0 6 . 4 2 0 8 3 0 2 . 5 3 0 6 8 0 5 . 4 4 8 7 5 0 1 . 5 8 2 1 5 0 4 • 4 7 9 7 5 0 0 . 6 4 0 1 0 0 3 . 5 1 4 1 4
0 2 . 5 5 2 1 7 01 . 5 9 4 0 6 0 0 . 6 4 0 1 0
( M e V ) ( k Q = 1 9 M e V ) (MeV) ( k Q = 2 2 M e V ) ( M e V ) ( k Q = 2 7 M e V )
1 9 . 0 2 6 8 7 2 2 . 0 2 6 4 9 2 7 . 0 2 6 0 4 1 8 . 1 6 0 8 0 2 1 . 1 6 0 4 0 2 6 . 1 5 9 9 7 1 7 . 2 2 0 2 4 2 0 . 2 1 9 8 1 2 5 . 2 1 9 4 9 1 6 • 2 5 7 3 1 1 9 . 2 5 6 6 1 2 4 . 2 5 6 2 0
1 5 . 2 8 3 8 6 1 8 . 2 8 2 5 0 2 3 . 2 8 1 7 0 1 4 . 3 0 4 7 6 1 7 . 3 0 2 2 9 2 2 . 3 0 0 6 8 1 3 . 3 2 2 6 2 1 6 . 3 1 8 5 2 2 1 • 3 1 5 6 3 1 2 • 3 3 9 0 7 1 5 • 3 3 2 7 5 2 0 . 3 2 8 0 5 11 • 3 5 5 1 9 1 4 . 3 4 6 0 1 1 9 • 3 3 8 9 1 1 0 . 3 7 1 7 6 1 3 • 3 5 9 0 5 1 8 . 3 4 8 9 1 0 9 • 3 8 9 3 5 1 2 • 3 7 2 3 9 1 7 • 3 5 8 5 5 0 8 . 4 0 8 3 8 11 - 3 8 6 4 3 1 6 . 3 6 8 2 0 0 7 . 4 2 9 1 8 1 0 . 4 0 1 4 6 1 5 • 3 7 8 1 3 0 6 . 4 5 1 9 8 0 9 . 4 1 7 7 2 1 4 • 3 8 8 5 5 0 5 . 4 7 7 0 0 0 8 . 4 3 5 3 9 1 3 • 3 9 9 6 4 0 4 . 5 0 4 3 8 0 7 . 4 5 4 6 1 1 2 . 4 1 1 5 1 0 3 • 5 3 4 2 6 0 6 . 4 7 5 4 8 11 . 4 2 4 2 8 0 2 . 5 6 6 7 6 0 5 . 4 9 8 1 2 1 0 . 4 3 8 0 3 01 . 6 0 2 0 0 0 4 . 5 2 2 5 8 0 9 . 4 5 2 8 3 0 0 . 6 4 0 1 0 0 3 • 5 4 8 9 5 0 8 . 4 6 8 7 3
0 2 . 5 7 7 2 8 0 7 • 4 8 5 7 7 0 1 . 6 0 7 6 4 0 6 . 5 0 4 0 1 0 0 . 6 4 0 1 0 0 5 . 5 2 3 4 7
0 4 . 5 4 4 1 8
0 3 . 5 6 6 1 8 0 2 . 5 8 9 4 8 0 1 . 6 1 4 1 1 0 0 . 6 4 0 1 0
This table is continued on the next page.
482 BÜLOW and FORKMAN
T A B L E II (cont . )
k
1eV)
$ ( k , k ) . 0
(k = 3 2 M e V ) 0
k
( M e V )
$ ( k , k ) 0
(k = 3 6 M e V ) 0
k
(MeV)
$ ( k , k ) 0
( k Q = 4 4 M e V )
k
(MeV)
<3? ( k , k i 0
( k = 5 2 M e \ 0
3 2 . 0 2 5 7 3 3 6 • 0 2 5 5 4 4 4 . 0 2 5 2 7 5 2 . 0 2 5 0 8
31 • 1 5 9 7 0 3 4 . 2 1 9 3 5 4 2 . 2 1 9 3 8 5 0 . 2 1 9 4 3 3 0 . 2 1 9 3 8 3 2 . 2 8 1 7 8 4 0 . 2 8 2 2 4 4 8 . 2 8 2 7 3 2 9 . 2 5 6 1 9 3 0 • 3 1 4 7 9 3 8 . 3 1 5 3 4 4 6 . 3 1 6 1 3 2 8 . 2 8 1 6 3 2 8 • 3 3 5 5 0 3 6 • 3 3 5 5 3 4 4 • 3 3 6 3 1 2 7 • 3 0 0 3 7 2 6 • 3 5 0 5 7 3 4 • 3 4 9 3 1 4 2 • 3 4 9 6 7 2 6 • 3 1 4 8 3 2 4 • 3 6 3 3 5 3 2 • 3 5 9 9 0 4 0 • 3 5 9 3 6
2 5 • 3 2 6 4 7 2 2 • 3 7 5 6 8 3 0 • 3 6 9 0 9 3 8 • 3 6 7 1 3 2 4 • 3 3 6 2 5 2 0 . 3 8 8 6 9 2 8 • 3 7 7 9 7 3 6 • 3 7 4 0 2
2 3 . 3 4 4 8 3 1 8 . 4 0 3 0 8 2 6 . 3 8 7 2 0 3 4 . 3 8 0 7 0 2 2 • 3 5 2 7 0 1 6 • 4 1 9 3 1 2 4 • 3 9 7 2 5 3 2 . 3 8 7 6 1 2 1 . 3 6 0 2 0 1 4 • 4 3 7 7 1 2 2 . 4 0 8 4 1 3 0 • 3 9 5 0 4 2 0 • 3 6 7 5 9 12 . 4 5 8 4 9 2 0 . 4 2 0 9 0 2 8 . 4 0 3 2 2
1 9 • 3 7 5 0 8 1 0 . 4 8 1 8 2 1 8 . 4 3 4 8 8 2 6 . 4 1 2 2 9 1 8 . 3 8 2 8 3 8 . 5 0 7 8 2 1 6 . 4 5 0 4 6 2 4 . 4 2 2 3 6
1 7 • 3 9 0 9 6 6 • 5 3 6 5 7 1 4 • 4 6 7 7 2 2 2 • 4 3 3 5 2 1 6 • 3 9 9 5 8 4 . 5 6 8 1 6 1 2 . 4 8 6 7 4 2 0 . 4 4 5 8 3 1 5 . 4 0 8 7 5 2 . 6 0 2 6 5 1 0 • 5 0 7 5 7 1 8 • 4 5 9 3 6 1 4 . 4 1 8 5 4 0 . 6 4 0 1 0 8 - 5 3 0 2 5 1 6 . 4 7 4 1 2
1 3 . 4 2 9 0 2 6 . 5 5 4 8 2 1 4 . 4 9 0 1 7 1 2 . 4 4 0 2 1 4 . 5 8 1 2 9 1 2 • 5 0 7 5 3 11 . 4 5 2 1 6 2 . 6 0 9 7 1 1 0 . 5 2 6 2 1
1 0 . 4 6 4 9 0 0 . 6 4 0 1 0 8 . 5 4 6 2 3 0 9 . 4 7 8 4 6 6 . 5 6 7 6 2 0 8 . 4 9 2 8 5 4 • 5 9 0 3 9 0 7 . 5 0 8 1 0 2 . 6 1 4 5 4 0 6 . 5 2 4 2 3 0 . 6 4 0 1 0
0 5 . 5 4 1 2 4 0 4 . 5 5 9 1 5 0 3 . 5 7 7 9 9 0 2 . 5 9 7 7 4 0 1 . 6 1 8 4 4 0 0 . 6 4 0 1 0
C o m m e n t s
In the fo l lowing c o m p i l a t i o n , (7, n) c r o s s - s e c t i o n c u r v e s a r e g iven , wh ich a r e s o m e t i m e s c o m p l e m e n t e d wi th c r o s s - s e c t i o n s f o r o t h e r t y p e s of r e a c t i o n s . P r e f e r e n c e h a s b e e n g iven to m o n o c h r o m a t i c photon d a t a when s u c h a r e a v a i l a b l e . E s t i m a t e s of n o n - t a b u l a t e d c r o s s - s e c t i o n s can be m a d e f r o m F i g s 1, 2 and 3. W h e n da ta f o r m o n o c h r o m a t i c pho tons a r e not a v a i l a b l e , con t inuous photon da ta have b e e n u s e d and the g r a p h s a r e m a r k e d wi th " b r e m s " . F o r s o m e nuc le i equ iva l en t da ta e x i s t f r o m s e v e r a l l a b o r a t o r i e s . They a r e t h e n g iven without p r e f e r e n c e , f o r c o m p a r i s o n . T h e s e p a r a t i o n e n e r g i e s of p a r t i c l e s o r g r o u p s of p a r t i c l e s have b e e n t a k e n f r o m R e f . [ 8] and a r e g iven in MeV. F o r f u r t h e r c r o s s - s e c t i o n d a t a and m o r e de t a i l ed i n f o r m a t i o n , r e f e r to the P h o t o n u c l e a r D a t a Index, R e f . [ 3 ] , and the P h o t o n u c l e a r D a t a C e n t e r a t NBS which o f f e r s a d i g i t a l d a t a l i b r a r y of c r o s s - s e c t i o n d a t a .
PHOTONUCLEAR CROSS-SECTION S 483
T h e s u r v e y of l i t e r a t u r e p e r t a i n i n g to t h i s c o m p i l a t i o n w a s c o n c l u d e d in J a n u a r y 1974. S i m u l t a n e o u s l y w i t h t he c o m p i l a t i o n of t he p r e s e n t c r o s s -s e c t i o n d a t a , B . L . B e r m a n h a s c o m p i l e d p h o t o n u c l e a r c r o s s - s e c t i o n s o b t a i n e d w i t h m o n o e n e r g e t i c p h o t o n s . To m a k e o u r c o m p i l a t i o n a s c o m p l e t e a s p o s s i b l e , we h a v e u s e d r e s u l t s f r o m B e r m a n ' s a t l a s [ 9] .
E x a m p l e of how to d e t e r m i n e t he y i e l d c u r v e
P r o b l e m :
Solu t ion :
W e w a n t to d e t e r m i n e the (7, n) y i e l d c u r v e f o r go ld f o r 19 M e V b r e m s s t r a h l u n g . L o o k a t t he p a g e w i t h t he go ld c r o s s - s e c t i o n . W e c h o o s e t he u p p e r f i g u r e , f r o m w h i c h we g e t t he <j (k)-value . F r o m T a b l e II we f ind k and 3>(k, k0) and d e r i v e t h e fo l lowing :
19 M e V
k (MeV) ®(k ,k 0 )
a(k) (mb)
®(k, k„) k
(mb • M e V " 1 )
8 0. 40838 5. 9 0 .3012 9 0. .38935 42 . 4 1 . 8343
10 0. . 37176 84. 1 3 . 1265
11 0. 35519 170. 6 5 . 5087 12 0. 33907 323 . 5 9. . 1408 13 0. 32262 517 . 6 12 . 8452
14 0. 30476 505. 9 11 . 0127 15 0. 28386 376. 5 7 . 1249 16 0. 25731 211. 8 3 . 4 0 6 1
17 0. .22024 100. 0 1 . 2955 18 0. 16080 61. 8 0 . 5521 19 0. 02687 40. 0 0 . 0566
c r f k i ! $ (kj , k0)
k ; 5 6 . 2 0 4 6
I = 5 6 . 2 0 4 6
484 BÜLOW and FORKMAN
150
100
Oq(k0) (mb)
50
FIG. 6. Oq(kd) as a function of k 0 .
As
ko and wi th the v a l u e of / $ ( k , k0)dk f r o m T a b l e I w e g e t t h e c r o s s - s e c t i o n
o p e r e q u i v a l e n t q u a n t u m
Oq (k0) = J CT(k) • $ ( kw
k 0 ) dk/k'o1 / $(k, kQ)dk
56. 2046 • 19 _ , . . . . . . . 7 . 3 2 7 8 8 = 1 4 5 - 7 m b i f f ( k ) = l
In s i m i l a r w a y s w e g e t o-q(ko) f o r o t h e r v a l u e s of k0:
kQ = 16 MeV <jq(k0) = 39. 9553 • 1 6 / 6 . 04665 = 105. 7 m b
k 0 = 13 M e V CTq(k0) = 12. 7755 • 1 3 / 4 . 7 8 6 4 1 = 3 4 . 7 m b
k 0 = 10 M e V crq(k0) = 1 . 1 8 7 6 - 1 0 / 3 . 5 5 4 8 8 = 3 . 3 m b
F i g u r e 6 g i v e s Oq(k0) a s a f u n c t i o n of k 0 .
PHOTONUCLEAR CROSS-SECTION S 485
R E F E R E N C E S T O I N T R O D U C T I O N
[ 1 ] HAYWARD, E . , Photonuclear Reactions, NBS Monograph 118, Washington, D . C . (1970). [ 2 ] CARLOS, P . , BERGERE, R. , BEIL, H . , LEPRETRE, A . , VEYSSIERE, A . , Nuclear Physics A219 (1974) 61. [ 3 ] FULLER, E . G . , GERSTENBERG, H . M . , VANDERMOLEN, H . , DUNN, T . C . , Photonuclear Reaction
Data , NBS Special Publication 380, Washington, D . C . (1973). [ 4 ] JONSSON, G . G . , LINDGREN, K . , Physica Scripta ]_(1973) 49. [ 5 ] KOCH, H . W . , MOTZ, J . W . , Rev. Mod. Phys. 31 (1959) 920. [ 6 ] SCHIFF, L . I . , Phys. Rev. 83 (1951) 252. [ 7 ] PENFOLD, A . S . , LEISS, J . E . , Analysis of Photo Cross Sections, Physics Research Laboratory, University ,
of Illinois (1958). [ 8 ] WAPSTRA, A . H . , GOVE, N . B . , Nuclear Data Tables 9 (1971). [ 9 ] BERMAN, B.L. , Atlas of Photoneutron Cross Sections obtained with Monoenerget ic Photons, Rep.
UCRL-74622, Lawrence Livermore Laboratory, California (1973).
GRAPHS OF CROSS-SECTIONS
S y m b o l s
Z a t o m i c n u m b e r
A n u c l e a r m a s s n u m b e r
G pho ton
N n e u t r o n
P p r o t o n
f i s f i s s i o n
to t t o t a l pho ton a b s o r p t i o n
r L o r e n t z l ine width
P0 p r o t o n g r o u n d - s t a t e t r a n s i t i o n
b r e m s b r e m s s t r a h l u n g
m o n o m o n o e n e r g e t i c
C o m p t s c a t t C o m p t o n s c a t t e r i n g
CT(7, Tn) CT(7, n) + a(7, pn) + a(7, 2n) + . . .
4 8 6 BÜLOW and FORKMAN
CONTENTS LIST OF GRAPHS
z E l e m e n t P a g e Z E l e m e n t P a g e
1 D d e u t e r i u m 4 8 7 40 Z r z i r c o n i u m 5 2 1 , 554 2 H e h e l i u m 4 8 8 4 1 N b n i o b i u m 5 2 2 , 554 3 L i l i t h i u m 4 8 9 42 M o m o l y b d e n u m 523
4 Be b e r y l l i u m 4 9 0 , 557 4 5 R h r h o d i u m 5 2 4 , 5 5 5 5 B b o r o n 4 9 1 46 P d p a l l a d i u m 5 2 5 , 5 5 5 6 C c a r b o n 4 9 2 , 557 47 A g s i l v e r 5 2 6 , 5 5 5
7 N n i t r o g e n 4 9 3 4 8 C d c a d m i u m 5 2 7 , 5 5 5 8 O o x y g e n 4 9 4 , 557 49 In i n d i u m 5 2 8 , 5 5 5 9 F f l u o r i n e 4 9 5 50 Sn t i n 529
11 N a s o d i u m 496 51 Sb - a n t i m o n y 5 3 0 , '555 12 M g m a g n e s i u m 4 9 7 52 T e t e l l u r i u m 5 3 1 , 5 5 5 13 A l a l u m i n i u m 4 9 8 , 557 53 I i o d i n e 532
14 Si s i l i c o n 4 9 9 , 5 5 8 55 C s c a e s i u m 5 3 3 , 5 5 5 15 P p h o s p h o r u s 500 56 B a b a r i u m 5 3 4 , 556 16 S s u l p h u r 501 57 L a l a n t h a n u m 5 3 5 , 556
18 A r a r g o n 502 58 C e c e r i u m 5 3 6 , 556 19 K p o t a s s i u m 503 59 P r p r a s e o d y m i u m 5 3 7 , 556 2 0 C a c a l c i u m 5 0 4 , 558 60 Nd n e o d y m i u m 5 3 8 , 556
2 1 Sc s c a n d i u m 505 62 S m s a m a r i u m 539 22 T i t i t a n u m 506 6 3 E u e u r o p i u m 540 23 V v a n a d i u m 507 64 Gd g a d o l i n i u m 541
24 C r c h r o m i u m 508 6 5 T b t e r b i u m 542 2 5 M n m a n g a n e s e 509 67 Ho h o l m i u m 543 26 F e i r o n 510 68 E r e r b i u m 544
27 C o c o b a l t 511 71 L u l u t e t i u m 545 28 N i n i c k e l 512 73 T a t a n t a l u m 546 29 C u c o p p e r 513 74 W t u n g s t e n 547
30 Z n z i n c 514 79 Au g o l d 548 32 G e g e r m a n i u m 515 82 P b l e a d 549 33 A s a r s e n i c 516 83 B i b i s m u t h 550
34 Se s e l e n i u m 517 90 T h t h o r i u m 551 37 R b r u b i d i u m 5 1 8 , 554 92 U u r a n i u m 552 38 S r s t r o n t i u m 5 1 9 , 554 93 Np n e p t u n i u m 553 39 Y y t t r i u m 5 2 0 , 554
G i a n t d i p o l e r e s o n a n c e i n A - 9 0 n u c l e i 554
G i a n t d i p o l e r e s o n a n c e i n 1 0 3 s A s 133 n u c l e i 555
G i a n t d i p o l e r e s o n a n c e i n N = 82 n u c l e i 556
T o t a l p h o t o n u c l e a r a b s o r p t i o n : a t o I 5 5 7 , 558
4 PHOTONUCLEAR CROSS-SECTIONS 4 8 7
DEUTERIUM
( m b )
E-y (MeV)
Data point
designations —
see reference
Ref: Proc. Int. Conf. Photonuclear Reactions and Applica-tions (1973) Asilomar, page 323
G.Breit
(Mb) 400
EXCITATION ENERGY (M./;
120
9 0
0 ( f j b ) 60
Ref: Nucl. Phys. A201 (1973) 593
J. E.E.Baglin 30
1 o ( v . t o t ) 1
1 • STANFORD 1 ACALTECH \ — PARTOVI
1 X ORSAY
• \ ÛB0NN
\ - .V * h *
t V i
i
i i
1 1
ï
100 200 300 400
E f ( M e V )
For data points see reference
Ref: Proc. Int. Conf. Photonuclear Reactions and Applica-tions (1973) Asilomar, page 363 E. B. Dally
4 8 8 BÜLOW and FORKMAN
HELIUM
L5
(mb) 1.0
a s
I ' I ' , ' I I ' I • • • • ' »
4He(r,p) , í í • T
+ «
1 — i — r —
' M -
..»'MIHIIMMII
' / ' "'H I IJ I
f ! 4He(y,n) ^ 1 1
i, i y , . , . , . , . ,
i
1 , 1 20 22 24 26 28 30 32 34
E v (MeV
He(y,p) Nucl. Phys. A1h8 ( 1970), 211 , Meyerhof et al.
Ref: Phys. Rev. £4 ( 1 97 1 ) 723, B.L. Berman et al.
0 0.75
(mb)
i Gortognov <60) H e ( y , n ) B e r m a n * oi ( 7 0 )
« Webb et al<73)
6 8 10 12 14 16 18 20 22 24 26 28 30 32
Ey (MeV)
Ref: Phys. Rev. Lett. 2k ( 1 970) Ref: Proc. Int. Conf. Photonuclear 1594, B. L.Berman et al. Reactions and Applications (1973)
Asilomar, page 1^9 D. V. Webb et al.
Z A ABUND G, N G,P G,2N G,NP G, 2P
2 k 100.0 20.6 19.8 28.3 26.1 28.3
PHOTONUCLEAR CROSS-SECTION S 4 8 9
LITHIUM
4 6 • 10 12 14 1£ 11 2 0 2 2 24 2 6 2 1 X 3 2 3 4
E-y (MeV)
' l l
( ffly.Tnl
i. ' 1 •
'I- •(•.• 1
'(»••i
j
' M
ff[(y.2n)»<g.p2n)l
(M) KM).-'' , 1 6 *• 10 * 12 U 16 1 8 2 0 2 2 2 4 2 6 2 1 3 0 *
Ey (MeV)
Ref: Phys. Rev. Lett. 15 (1965) 727 B.L.Berman et al.
Ref: Proc. Int.Conf. Photonuclear Reactions and Applications (1973) Asilomar, page 175 R.L.Bramblett et al.
Z A ABUND G,N G,P G,2N G, NP G,2P
3 6 7.4 5.7 4.6 27.2 3.7 26.4 7 92.6 7.3 10.0 12.9 11.8 33-5
4 9 0 BÜLOW and FORKMAN
BERYLLIUM
12.00 ' B e o ( y. Tn)
«.00
a (mb)
«.00 H
' f h" I
S.00
fr |
v , - ;
15.00
E^ (MeV)
f i l l i t
25.00
Ref: Proc. Int. Conf. Photonuclear Reactions and Applica-tions (1973) Asilomar, page 151
R.J.Hughes et al.
Z A ABUND G,N G,P G,2N G,NP G,2P 4 9 1 0 0 . 0 1 . 7 1 6 . 9 2 0 . 6 1 8 . 9 2 9 . 3
See total cross-sections for the nuclear photoeffect.
PHOTONUCLEAR CROSS-SECTION S 4 9 1
BORON
o (mb)
1 0 B
Iprosant measurement
ff(j.n) • o l j . pn)*2 j .2n)
IM !f* / '
12 16 20 2 4 E y (MeV)
28
o (mb)
11 B <r<Y.n)» olY.pn)*2o<y.2n)
!<,,») <1,
12 16
Ref:
20 E y (MeV)
Nucl. Phys. A215 ( 1973) 1^7 R. I. Hughes and E. G.Muirhead
2k 28
z A ABUND G, N G, P G, 2N G, NP G,2P
5 10 19.6 8.4 6.6 27.O . 8.3 23.5 1 1 80. k 11.5 11.2 19.9 18.0 3O.9
For Sov. (y.p)
J. Nucl. cross-section data
Phys. (1970) 4, see I. Sorokin et al.
4 9 2 BÜLOW and FORKMAN
CARBON
20 M • • «
-1 1 1 1 1—r-
12,
I (V.tot) ~W.p0)
20 25
Ey (MeV)
Ref: (y,tot) Nucl.Phys.A128 (1969) 426, N. Bezic et al(fig) (y.Po) Nucl. Phys. ¿8 ( 1964 ) 122, R. G. Allas et al. (y ,n) Phys. Rev. 143 (1966) 790, S. C. Fultz et al.
oC(-v.n)*l-y,np)]
12r
0 th (ma K
r<y.n)..' (y.np) (y,2n) • • • i _ji !
26 30 EY(MeV)
(mb)
Ref: Phys. Rev. Jji2 (1966)790 Ref: Sov. J. Nucl. Phys. V4 (1972) 142 S. C. Fultz et al. B. S. Ishkhànov et al.
z A ABUND G, N G, P G,2N G,NP G, 2P
6 12 98.9 18.7 16.O 31 .8 27.4 27.2
13 1 .1 4.9 17.5 23.7 20.9 31.6
See t o t a l c r o s s - s e c t i o n s f o r t he n u c l e a r p h o t o e f f e c t .
PHOTONUCLEAR CROSS-SECTIONS 4 9 3
NITROGEN
(y,Tn) Phys. Rev. Ç2 (1970) 2318 B. L.Berman et al.
Ref 5 Proc. Int. Conf. Photonuclear Reactions and Appli-cations (1973) As ilomar, page 727 J. M. Dixon
Z A ABUND G,N G,P. G,2N G,NP G,2P
7 14 99.6 10.6 7.6 3O.6 12.5 25.1 15 0.4 10.8 10.2 21.4 18.4 31 .o
i
4 9 4 BÜLOW and FORKMAN
OXYGEN
Ref: (y,tot) Nucl. Phys. AI 28 (1969) bz6, N. Bezi¿ et al. (fig) (y,p) Phys. Rev. Lett. 965) 3&1» R.C.Morrison et al (y,n) Phys. Rev. 1^3 0 9 6 6 ) 712, B. C. Oook et al. (•y, t ot )theory Nucl. Phys A¿¿(1967)271 , B. Buck et al.
(mb) i
ii it Ey (MéV)
2 0 2 2 2 4 2 6
E-y(MeV)
Ref: Phys. Rev. 1 33 (i964)b869 R.L.Bramblett et al.
Sov. J. Nuc 1. Phys. ±2 (l97l)^84 B.S.Ishkhanov et al.
A
16
ABUND
99.8
G, N
1 5 . 7
G, P
12.1 G,2N
28.9 G,NP
23.O
G,2P
22.3
See to ta l c r o s s - s e c t i o n s for the n u c l e a r photoef fec t .
PHOTONUCLEAR CROSS-SECTIONS 4 9 5
FLUORINE
10
o
(mb)
19 (
U
oC(».n)*(*.pn)3
o(ï.Tn)- aC(y.n)»(Y.pnl] / ....
J . M ' « . . » t 4 1
17 20
E y (MeV)
26
Ref: Proc. Int. Conf. Photonuclear Reactions and Applica-tions (1973) As ilomar, page 525
R.Bergère et al.
15
( m b ) 1 0
oC(v.n) + (v.pn)+(Y,2n)]
18 22 E y (MeV)
Ref: Z.Physik 261 ( 1973) 125, D. CatanS et al.
Z A ABUND G,N G,P G,2N G,NP G,2P
9 19 100.0 10.4 8.0 19.6 16.0 23.9
4 9 6 BÜLOW and FORKMAN
S O D I U M
T 1 T
2 3 o [ ( Y , n ) « . ( * y , p n ) * C y . 2 n ) ] Na
/ \ V
•M1/
12 ( y , n )
14 16 18 20 22 L (r,np)
24 26 L (>s2n)
28
E y ( M e V )
Total photoneutron cross-section.
Ref: Plotted points: Dash-dotted curve: R.A.Alvarez et al. D. S. Fielder et al. Phys. Rev. C4 (1971) 1673 Proc. of the Int. Conf. on Nucl. Phys.
Paris 1964, page 1025
Dashed curve: K. Sato J. Phys. Soc.Japan 18 (1963) 1353
Z A ABUND G, N G,P G,2N G,NP G,2P
11 23 100.0 12.4 8.8 23.5 19.2 24.1
PHOTONUCLEAR CROSS-SECTIONS 4 9 7
MAGNESIUM
Ey (MeV)
Ref: Phys. Rev. C4 ( 1971 ) 149, 1673 2k,25,26Mg Fultz et al.
" M g
o(Y.n)
Dolbi lk in et al. (7, total) Nucl. Phys. £2 (1965) 137
Min & Whitehead (brems) Phys. Rev. Vil 0 9 6 5 ) B301
M i l l e r et al . (mono) J. de Phys. 22 (1966) 8
A n d e r s o n et al . ( b r e m s ) Nucl. Phys. AI 2 7 Ü 9 Ó 9 ) 474
Ful tz et al. (mono) Phys. Rev. Ç4 ( 1 971 ) 1 49
Webb et al. ( b r e m s ) Nucl.Phys. AI 59 (1970) 81 (fig)
z A AB UND G,N G,P G,2N G,NP G,2P
12 24 78.7 16.5 1 1.7 29.7 24.1 20.5 25 10.1 7.3 12.1 23.9 19.O 22.6 26 1 1 .2 11.1 14.1 18.4 23. 1 24.8
4 9 8 BÜLOW and FORKMAN
ALUMINIUM
Upper curve a[(y,n) + C i P n ) + 2(y,2n)~\
Lower curve (y(y,2n)
Ref: Phys. Rev. l43 ( 1966) 790, S. C. Fultz et al.
2 7 A l ( y , n ) 2 6 A l m Nucl. Phys. 64 (1965) 486, M.N.Thompson et al.
Ref: Proc. Int. Conf. Photonuclear Reactions and Applica-tions (1973) Asilomar, page 52 5
R. Bergère et al.
Z A ABUND G,N G,P G,2N G,NP G,2P
13 2 7 100.0 13.1 8.3 2 4 . 4 19 . 4 2 2 . 4
S e e t o t a l c r o s s - s e c t i o n s f o r t h e n u c l e a r p h o t o e f f e c t .
PHOTONUCLEAR CROSS-SECTIONS 4 9 9
SILICON
oCy.tot)
(mb)
brems 20
I < i—i—i y—i—i—i—i—i—<~~i—i—r i
Si
20 25
Ey (MeV)
20
I S ° ( V ' P 0 )
o ( v , n » n p )
to (mb)
Ref: (y.tot)
(r,p0) (y,n+np)
Nucl. Phys. AI 17 (1968) 124, Nucl. Phys. 65 ( 1965) 577, Phys. Lett. 6 (1963) 213,
N. Bezii et al. (fig) P. P. Singh et al. J. T, Caldwell et al.
0 (mb)
E-y (MeV)
Ref: Proc. Int. Conf. Photonuclear Reactions and Applica-tions (1973) As ilomar, page 525
R.Bergère et al.
z A ABUND G,N G,P G, 2N G, NP G,2p
1 4 28 92.2 17.2 11.6 30.5 24.6 19.9
29 4.7 8.5 12.3 25.7 20. 1 21.9
30 3.1 10.6 13.5 19. 1 22.9 24.0
S e e t o t a l c r o s s - s e c t i o n s f o r t h e n u c l e a r p h o t o e f f e c t .
H 17 20 23 26 29
500 BÜLOW and FORKMAN
PHOSPHORUS
Top curve represents o(y,n) + ff(y,pn)
Lower curve represents (J^jpn)
Ref: Proc. Int. Conf. Photonuclear Reactions and Appli-
cations (1973) Asilomar, page 525
R.Bergère et al.
Z A ABUND G, N G,P G, 2N G, NP G,2P
15 31 100 .0 12 .3 7 . 3 23 .6 1 7 . 9 2 0 . 8
PHOTONUCLEAR CROSS-SECTIONS 5 0 1
SULPHUR
Ref: Proc. Int. Conf. Photonuclear Reactions and Appli-
cations (1973) Asilomar, page 525
R. Bergère et al-
Z A ABUND G, N G, P G,2N G,NP G,2P
16 32 95.0 15.1 8.9 28.1 21.2 16.2
34 4.2 11.4 10.9 20.1 21.0 20.4
other 0.8
5 0 2 BÜLOW and FORKMAN
ARGON
Ey (MeV)
Top curve represents a(y,n) + ff(y,pn) + CT(y,2n)
Lower curve represents o(y,2n)
Ref: Proc. Int. Conf. Photonuclear Reactions and Appli-
cations (1973) Asilomar, page 525
R.Bergère et al.
Z A ABUND G,N G, P G,2N. G, NP G,2P
18 ho 99.6 9.9 12.5 16.5 20.6 22.8
other 0.4
PHOTONUCLEAR CROSS-SECTIONS 5 0 3
POTASSIUM
Ey (MeV)
Top curve represents CT(,y,n) + 0'('y,pn)
Lower curve represents CT(y,2n)
Ref: Proc.Int.Conf. Photonuclear Reactions and Appli-
cations (1973) Asilomar, page 525
R.Bergère et al.
Z A ABUND G, N G,P G, 2N G, NP G, 2P
19 39 93. 1 13.1 6.4 25.2 18.2 16.6
41 6.9 10.1 7.8 17.9 17.7 20.3
5 0 4 BÜLOW and FORKMAN
CALCIUM
100
80
' i i i i i > i i i i
brems
1 1 1 1 1 1 1
— tv.tot)
A (Y.P.J f \ — (v.n)
Ca do(Y,P0)
dfl
0(-y,t0t) 60
(mb) I
Ii |\ i \
(mb) s r u -
40 V
;V¡Í \ " \ \
! '' ^\\ \ 10-
20
0
! i
J j T , / / '0 v . 05-
1 o(Y.n)
(mb)
10 15 20 25
Ey (MeV)
Ref: (v.tot) Nucl. Phys.A117 (1968) 124,
( v , n ) Nucl. Phys. ( 1 9 6 4 ) 5 4 9 ,
(Y,P 0) Phys. Rev. ( I964)B365,
N.Bezié et al. (fig)
J. E. E.Baglin et al.
J.C. Hafele
(mb)
Ref: Sov. J. Nuc 1. Phys. 1 2 . ( 1 9 7 1 ) 6 5 5 , B. S. Xshktianov <
Z A ABUND G,N G,P G,2N G,NP G,2P
20 4 0 97.0 1 5 . 6 8 . 3 29-0 21 . 4 1 4.7
4 4 2.1 11.1 12.2 19.1 2 1 . 8 21 . 6
other 0.9
See t o t a l o r o s i s - s e c t l o n s f o r t h e n u c l e a r p h o t o e f f e c t .
PHOTONUCLEAR CROSS-SECTIONS 505
S C A N D I U M
—i 1 1 1 1 1— 13 15 17 19 21 23
E y (MeV)
The smooth curve represents the Danos model fit which is the sum of the two dashed Lorentz curves.
Refs Nucl. Phys. A205 (1973) 139 R.H.Sambell and B.M.Spicer
Z A ABUND G,N G,P G,2N G fNP G,2P
21 45 100.0 11.3 6.9 21.0 18.0 19.1
5 0 6 BÜLOW and FORKMAN
TITANIUM
E-y(MeV)
u(y,n) + 2 a(y,2n) + ff(y,np) The solid curve is calculated.
Open circles represent the (y,Tn) cross-section corrected for neutron multiplicity. Ref: Nuovo Cimento 48B (1967) 46O
S.Costa, F. Ferrero, C. Manfredotti, L.Pasqualini, G.Piragina and H. Arenhövel
z A ABUND G, N G, P G, 2N G, NP G,2P
22 46 8. 0 13.2 1 0 . 4 22.7 21.7 17.2 h i 7.3 8.9 10.5 22 . 1 19.2 18.7 48 73-9 11.6 11.4 20.5 22.1 19.9 49 5.5 8.1 11 .4 19.8 19.6 20.8 50 5-3 10.9 12.2 19.1 22.3 21 .8
PHOTONUCLEAR CROSS-SECTIONS
VANADIUM
5 0 7
Top curve represents <j[(y,n) + (^(pn)]
Lower curve represents (l[ (y , 2n) +3 (V , 3n) ]
Ref: Phys. Rev. 128 (1962) 23^5, S. C. Fultz et al.
Ev (MeV)
Ref: Proc. Int. Conf. Photonuclear Reactions and Applica-tions (1973) Asilomar, page 525 R. Bergère et al.
Z A ABUND G,N G,P G,2N G, NP G, 2P
23 50 0.2 9.3 7.9 20.9 16.1 19.3
51 99.8 11.1 8.1 20.4 19.0 20. 2
5 0 8 BÜLOW and FORKMAN
CHROMIUM
(mb)
30
20
10
1 I I i I I "T 1 1 1 T — oC{Y,p)+(Y.pn)]
A brems j J
1 1 1 -T 1
" C r
V f \ -
s
Hllllllllllll' 1 1 1 1 1 1 1 1 1 1 _ 1 1 1 1 1 1
15 20 25
Ey (MeV) Ref: Sov. J. Nucl. Phys. 1J_ (1970) 272
B. S. Ishkhanov et al.
Ey (MeV)
Ref: Bull. Acad. Sei. USSR-Phys. 22. 0 9 6 9 ) 1588 B. I.Goryachev et al.
Z A ABUND G, N G, P G,2N G rNP G,2P 24 50 4.3 12.9 9.6 23.6 21 .1 16.3
52 83.8 12.0 10.5 21 .3 21.6 I8.6 53 9. 5 7.9 11.1 20.0 18.4 20.1 54 2.4 9.7 12.4 17.7 20.9 22.0
PHOTONUCLEAR CROSS-SECTIONS 885
MANGANESE
100
90
80
3T 7 0
« 60 J 50
M 40
J 30
" 20
10
0
100
90
80
— 70
1 60 m
.S 50
J 40
i 30
" 20
10
0
40
35
30
Î 25 . 20
1 1 5
<A a 1 0
e u 5
0
Ni
. y
(rtY-Tnl
I .1 ,1 .
V a *
^ (y,p«)t Vr,2»)
ffC<y.n)«-(l|.pn)]
Ä
0
¡i l 1 !i ' %
fñ¡¡) (ï,p«)T f(ï,2ll) M l i k
( i s r
onj.2n)»(y.p2nlD
i
»T" r i.
f i » ) (r,M) *
10 16 22 28 3«
E y (MeV)
Proc.Int. Conf. Photonuclear Reactions and Appli-
cations (1973) Asilomar, page 545
R.A.Alvarez et al.
ABUND G, N G,P G,2N G,NP G,2P
100.0 10.2 8.1 19.2 17.8 20 .4
5 1 0 BÜLOW and FORKMAN
IRON
The solid curve is calculated.
Ref: Nuovo Cimento 51B (1967) 199 S.Costa, F.Ferrero, C.Manfredotti, L.Pasqualini, G. Piragino and H.Arenhövel
z A ABUND G, N G, P G, 2N G, NP G, 2P
26 54 5.8 13.4 8.9 24.1 2O.9 15.4 56 91 .7 1 1 .2 10.2 20.5 20.4 18.3 57 2.2 7.6 10.6 18.8 1 7.8 19.6 other 0.3
PHOTONUCLEAR CROSS-SECTIONS 5 1 1
COBALT
35
30
S 25 E
g 20
S 15 « d M 10 S £ 5
<rCCj.2n)»(j.p2n)J
M ni i
/ F M
f(ï.3»)
10 16 22 28
E y (MeV) 34
Ref: Proc. Int. Conf. Photonuclear Reactions and Appli-
cations (1973) Asilomar, page 547
R. A. Alvarez et al.
Z A ABUND G, N G,P G,2N G,NP G,2p
27 59 100.0 10.5 7.4 19.0 17.4 19.2
5 1 2 BÜLOW and FORKMAN
NICKEL
'(r,2i)
o-l( .2n) + (j(,p2n)]
10 12 14 16 18 20 22 24 26 28 30 32 34
Ol(g,2n>*(^.p2n>]
,111%
",l».2>)
E v (MeV)
10 12 14 16 18 20 22 24 26 28 30 32 34
E y ( M e V )
Ref s Proc. Int. Conf. Photonuclear Reactions and Applications (1973) Asilomar, page 549 S. C. Fultz et al.
Ref: Proc. Int. Conf. Photonuclear Reactions and Applications (1973) Asilomar, page 551 S. C.Fultz et al.
A ABUND G, . N G,P G, 2N G, NP G, 2P
58 67.9 12.2 8.2 22.5 19.6 14.2 60 26.2 11.4 9.5 20. k 20.0 16.9 61 1.2 7.8 9.9 19.2 17.4 18.1 62 3.6 10.6 11.1 18.4 20.5 19.9 64 1.1 9.7 12.5 16.5 20.9 -
PHOTONUCLEAR CROSS-SECTIONS 5 1 3
COPPER
100
80
" Î 60 . 1
i 40
i 20
a c
' ' i ' i.i s l j .Tn)
i
(
1 , ' ' ' ' V i 1
1
• .'•'i " " » I ' l l , ,
' M 1r.2>)
s I «
o n y . n M j . p n ) ]
J 1 1 " , .
''' 'I,
"•'.'.I', 'in
w ) '(».a)
J is
1:
0C( | .2nN<ï .2pn>]
" W i w ¡ r
22 26
E y (MeV)
3 40
J 3 *
fflj.Tn)
' l l ,
v 1 '
.111'
IM)
o l l j .n )*( j ,pn) l
.•n1 H
j »
oKj,2n)-»(|¡.p2n)l
" W »(>.21)
8 12 16 20 24
E y (MeV)
28
Ref : Phys. Rev. 133 (1964) B 1 1 49 , S. c. Fultz et al.
Z A ABUND G, N G,P G,2N G,NP G, 2P
29 63 69. 1 10.9 6.1 19.7 16.7 17.2
65 30.9 9.9 7.4 17.8 17.1 20.0
5 1 4 BÜLOW and FORKMAN
ZINC
Ref: Phys. Rev. Lett. 2j> (1970) 685, B.C.Cook et al.
0 12 M 16 18 20 22
Ey (MeV)
C r [ ( y , n ) + 2(y,2n) + (y,np)]
Solid curve is calculated Open circles give the (y,Tn) cross-section corrected for neutron multiplicity
Ref: Nuovo Cimento 48B (1967) 460, S.Costa et al.
Z A ABUND G,N G,P G,2N G,NP G,2P
30 64 48.9 11 .9 7.7 21.0 I8.6 13.8 66 27.8 11.1 8.9 19.0 I8.8 16.4 67 4.1 7.1 8.9 18.1 16.O 17.3 68 18.6 10.2 10.0 17.3 19.1 18.5
other 0.6 For (y,p ) see Nucl. Phy s. A213 > (1973) 388, G. E.Clark
PHOTONUCLEAR CROSS-SECTIONS 5 1 5
GERMANIUM
E y (MeV)
6
4
2
0 0 ,
( m b ) 6
4
2
0 3 2 I 0 12 17 22 27 32 37 42
E y (MeV)
Ref! : Nucl . Phys. A21 3 (1973) 371 , J. J. McCarthy et al
Z A ABUND G,N G,P G,2N G,NP G,2P
32 70 20.5 11.5 8.5 20.0 18.8 15.1 72 27.4 10.7 9-7 18.2 19.0 17.6 73 7.8 6.8 10.0 17.5 16.5 18.5 74 36.5 10.2 11.0 17.0 20.2 19.9 76 7.8 9.4 12.0 15.9 20.7 -
5 1 6 BÜLOW and FORKMAN
ARSENIC
135h
90
O
(mb) 4 5
a C f y . n M Y , p n ) 3
75 'As I f • i
H y , n )
^ f r f t f y
10 U 18 22 26 Ey(MeV)
tr,3»>. 30 3 i.
Dashed curve: est imated max imum systematic error owing to bremsstrahlung normalizat ion.
18 22 26 30 34 E-y(MeV)
Ref: Phys. Rev. 177 (l 969) 17^5 B. L.Berman, R. L.Bramblett, J. T. Caldwell, H. S. Davis , M. A. Kelly and S. C. Fultz
Z A ABUND G, N G,P G,2N G,NP G,2P
33 75 100.0 10.2 6.9 18.2 17.1 17.9
PHOTONUCLEAR CROSS-SECTIONS 5 1 7
SELENIUM
The solid curve is calculated.
Ref: Nuovo Cimento 51B (1967) 199 S.Costa, F. Ferrero, C. Manfredotti, L.Pasqualini, G. Piragino and H.Arenhövel
z A ABUND G, N G, P G, 2N G, NP G, 2P
34 76 9.0 11.1 9-5 1 9.2 19.8 16.4 77 7.6 7.4 9.6 18.6 16.9 17.3 78 23.5 10.5 10.4 17.9 20.1 18.4 80 49.8 9.9 11.4 16.9 20.4 20.6 82 9.2 9.3 12.3 16.O 21 .2 -
other 0. 9
5 1 8 BÜLOW and FORKMAN
RUBIDIUM
if o[(v,n)^(Y.pn)J x o (7 .2n)
See compilation for giant dipole resonance in A 90 nuclei.
Ref: Nucl. Phys. AI 75 (1971 ) 609 A.Leprêtre, H.Beil, R.Bergère, P.Carlos,
A.Veyssière and M.Sugawara
Z A ABUND G, N G,P G, 2N G, NP G,2P
37 85 72.2 10.5 7.0 1 9.'t- 17.5 17.7
87 27-8 9.9 8.6 is.6 18.5 20.5
PHOTONUCLEAR CROSS-SECTIONS 5 1 9
STRONTIUM
ijj oC(Y.n)-(Y,pn)]
x oC("Y'2n)J
See compilation for giant dipole resonance in A =- 90 nuclei.
Ref: Nucl. Phys. 175 ( 1971 ) 609 A. Le prêtre, H.Beil , R.Bergère, P. Carlos, A, Veyssière and M. Sugawara
z A ABUND G, N G, P G,2N G, NP G, 2P
38 86 9.9 11 .5 9-6 20.0 20.1 16.6
87 7.0 8.4 9.4 19-9 18.1 18.0
88 82.6 11.1 10.6 19-5 20.5 19.2
other 0. 5
5 2 0 BÜLOW and FORKMAN
YTTRIUM
h i r¡¡¡—i i 1 1 1 r • i oC(Y.n).(v.pn)]
* i
; S 8 9 Y
I I
(mb)
'»I I i 1 T^^t I j jj 1
(y.n) -I 1 I I I I I I L.
16 22 26
EY(MCV)
Dashed curve: est imated max imum systematic error owing to bremsstrahlung normalizat ion.
Ref: Phys. Rev. 162 (l?67) 1098 B. L. Berman et al.
10 12 14 16 18 20 22 2H 26 2fl
E y (MeV)
Ref: Nucl. Phys. 175 (1971) 609, A. Leprêtre et al.
Z A ABUND G, N G,P G,2N G,NP G,2P
39 89 100.0 11.5 7.1 20.8 18.2 17.7
See compilation for giant dipole resonance in A =• 90 nuclei.
PHOTONUCLEAR CROSS-SECTIONS 5 2 1
ZIRCONIUM
U 18 22 26
E y (MeV) U 18 22 26 30
Ey (MeV)
16 20 2« 28 32 Ey (MeV)
16 20 24 28 Ey (MeV)
Ref: Phys. Rev. 1Ó2 (1967) 1098, B. L. Berman et al.
z A ABUND G, N G,P G, 2N G, NP G, 2P
4o 90 51.5 12.0 8.4 21.3 19.8 15.4 91 11.2 7.2 8.7 19.2 15.6 16.3 92 17.1 8.6 9.4 15.8 17.3 17. 1 94 17.4 8.2 10.3 1 4. 9 17.8 18.9 96 2.8 7.8 11.5 14.3 18.5 21.2
See compilation for giant dipole resonance in A 90 nuclei
5 2 2 BÜLOW and FORKMAN
NIOBIUM
Ey (MeV)
ij> oC("y ,n)+(*Y ,pn)]
x oC(7.2n)]
Ref: Nucl. Phys. 175 (1971 ) 609
A. Leprêtre, H.Beil, R Bergère, P.Carlos, A.Veyssière and M.Sugawara
Z A ABUND G, N G,P G,2N G,NP G,2P
4i 93 100.0 8.8 6.0 16.7 I4.7 15.4
See compilation for giant dipole resonance in A =• 90 nuclei.
PHOTONUCLEAR CROSS-SECTIONS 5 2 3
M O L Y B D E N U M
1 i ' i ' i 1 . i ' »
i , i . i i i i i ,
92 e Mo
> » S " m o
150 _ 0 ^
4 f 2« ». « Mo
• > • 9 8
Jit • M®
0
( m b ) 100
"
O .
' . * 0
® V
•Tsí 1 0 0
' M o
50
• • 1 4
V t °
- A ' f : f ï 4 *
' M P * ' /
• • 1 4
V t °
- A ' f : f ï 4 *
' M P * ' /
r . i i « . i , i 1 1 1 1 1 1 1 I 1 1 J * • • ' ^ • I i I . I I i I I I I I L u 10 U 18 2 2 2 6
Ey (MeV)
Experimental total photoneutron cross-section
af(y,n) + (y,pn) + (y,2n)] for Mo isotopes
Ref: Nucl. Phys. A129 (l974) 61, P.Carlos et al.
z A ABUND G.N G,P G,2N G, NP G,2P
42 92 15-8 12.7 7-5 22 .8 19.5 12.6
94 9.1 9-7 8.5 17.7 17.3 14.5
95 15.7 7-^ 8.6 17.0 15.9 15.1
96 16.5 9.2 9-3 16.5 17.8 16.1
97 9-5 6.8 9.2 16.O 16.1 16.5
98 23.8 8.6 9-8 15.5 17.9 17.3
100 9.6 8.3 10.6 14.2 18.0 19.5
5 2 4 BÜLOW and FORKMAN
RHODIUM
o (mb)
103 Rh
200
100
A *
10
M
1 4 18
Ev(MeV) 22
Top curve represents of(y,n) + (y,pn)]
Lower curve represents o(y,2n)
Ref: Nucl. Phys. A2 1 9 (1974) 39 A.Lepretre et al.
Z A ABUND G,N G,P G,2N G,NP G,2P
45 103 100.0 9.3 6.2 16.8 15.4 16.3
See giant dipole resonance in 103 s A í 133 nuclei.
PHOTONUCLEAR CROSS-SECTIONS 5 2 5
PALLADIUM
o
( m b )
Pd
200 b o C ( Y . n ) + { y , p n n
i
100
I 4 *
o(y.2n) * * T .
J L.
• •
10 14 18 E y (MeV)
Ref: Nucl. Phys. A219 (197*0 39, A. Lepretre et al.
z A ABUND G,N G,P G,2N G,NP G,2P
46 102 1 .0 10.6 7.8 18.9 17.7 13.3
104 11.0 10.0 8.7 17.6 18.0 14.9
105 22.2 7.1 8.8 17.1 15.8 15.7
106 27.3 9.6 9.3 16.6 18.3 16,4
108 26.7 9.2 10.0 15.8 18.5 17.8
110 11.8 8.8 10.5 15.0 18.7 19.2
See giant dipole resonance in 103 ¿ A ¿ 133 nuclei.
5 2 6 BÜLOW and FORKMAN
SILVER
U 20 26 Ey (MeV)
U 20 26
E-y (MeV)
Ref: Phys. Rev. 177 (1969) 1745, B.L.Berman et al.
200- oC(Y,n)>(v.2nH i—i—i—'—i—r-
(mb) 100-
f\ 107, 'Ag
Ag <J[(y,nMy,pn)]
200
O (mb)
100
10 12 14
A 10 15 20 25 30
Ey (MeV)
oCCV.n)»(v.2n)]
0 100-(mb)
22 16 18 20
Ey (MeV)
Ref: Nucl. Phys. A219 (1974)39
A.Leprêtre et al.
bremS
.¿P..,. "in « ' ' 5fi ?<; 20 25
Ey (MeV)
Ref: Bull. Acad.Sei. USSR 22 (1969) 1889
B.S.Ishkhanov et al.
Z A A B U N D G , N G , P G , 2 N G , N P G , 2 P
4 7 1 0 7 5 1 . 4 9 . 6 5 . 8 1 7 . 5 1 5 . 4 1 5 . 1
1 0 9 4 8 . 6 9 . 2 6 . 5 1 6 . 5 1 5 . 7 1 6 . 4
S e e g i a n t d i p o l e r e s o n a n c e i n 103 s A s 133 n u c l e i .
PHOTONUCLEAR CROSS-SECTIONS
CADMIUM
527
20 0
100
0
Ref: Nucl.Phys. A21 9 0 9 7 4 ) 39, A.Leprêtre et al.
z A ABUND G,N G,P G,2N G, NP G,2P
48 110 12.4 9-9 8.9 17.2 18.1 15.4
111 12.8 7.0 9.1 16.9 15.9 16.2
1 12 24. 1 9.4 9.6 16.4 18.5 16.8
113 12.3 6.5 9.8 15.9 16.2 17.6
114 28.9 9.0 10.3 15.6 18.8 18.3
116 7.6 8.7 1 1 . 1 1 4.8 1 9 . 1 -
other 1.9
I I
Cd
I I 1 1 1 !
/ # 4 . o C ( Y . n ) + ( x . p n ) l
•
4 m
9 • •
•
i
•
4 — •
»
•
• •
9 •
• • •
• •
I I
• t
• A
I 1 1 1 1 -J l I âf . I I I
10 14 18 22 Ev(MeV)
See giant dipole resonance in 103 s A £ 133 nuclei.
5 2 8 BÜLOW and FORKMAN
I N D I U M
i — - p - — i 1 • • i
A . 115 I n
f.( o U y . n M x . p n ï J
» i
12 16 20 24 26
Ey ( M e V )
20 24
E y (MeV)
Ref: Phys. Rev. 186 (19 69) 1255, S.C. Fultz et al.
200
0
(mb)
100
w 10 12 14 16 18 20 22 E y (MeV)
Ref: Nucl. Phys. A219 (197*0 39, A.Leprêtre et al.
z A ABUND G,N G,P G,2N G,NP G,2P
49 113 4.3 9.4 6.1 17.1 15.5 15.7
115 95.7 9.0 6.8 16.3 15.9 17.1
See giant dipole resonance in 103 s A s 133 nuclei.
i 1 1 1 1 1 1 r
I n o C l v n M v . p n ) ]
_L • V !
PHOTONUCLEAR CROSS-SECTIONS 529
200
100
0
O
(mb) o
o
o
°8 12 16 20 2U
Ev (MeV)
Ref: Nucl. Phys. A219 ( 197*0 61, P.Carlos et al.
A ABUND G,N G,P G,2N G,NP G,2P
1 12 1.0 10.8 7.5 19.0 17.6 12.9 116 14.3 9.6 9.3 17.1 18.3 16.1 117 7.6 6.9 9.4 16.5 16.2 16.9 118 24.0 9.3 10.0 16.3 18.8 17.5 119 8.6 6.5 9.9 15.8 16.5 18.2 120 32.9 9.1 10.7 . 15.6 19.0 19.0 122 4.7 8.8 11.4 15.0 19.8 -
124 other
5.9 1.0
8.5 12. 1 14.4 20.4 -
See also: Phys. Rev. 186 (1969) 1255, S.C. Fultz et al.
TIN
- | r—, , 1 r—, r - | • ) r - | T — r
r -
• / « » • • \ "
,•" / i> \ • " \ » . " c . .
/ . \ ' " ' A O
v .
/ ; . \
• • •
o 118Sn
m S n
r " 116Sn"
5 3 0 BÜLOW and FORKMAN
ANTIMONY
i 1 1 1 1 1 1 1 r
3 0 0 -
200.
o (mb)
100
Sb
10
• • • » • ' J y 4
_i : u i i i i i i_
H 18 2 2
E v (MeV)
26 30
Top curve represents Cr[ + (y.pn)]
Lower curve represents a(y,2n)
Ref: Nucl. Phys . A21? (1974) 39, A.Leprêtre et al.
Z A ABUND G,N G,P G,2N G,NP G,2P
51 121 57.2 9.2 5.8 16.3 1 4. 9 16.5
123 42.8 9.0 6.6 15.8 15.4 18.0
See giant dipole resonance in 103 í A s 133 nuc lei.
PHOTONUCLEAR CROSS-SECTIONS 5 3 1
200
200 o
(mb)
100
0
Ref: Nucl . Phys. A21 9 (1974) 39, A.Lepretre et al.
Z A ABUND G, N G,P G,2N G, NP G, 2P
52 1 22 2.5 9.8 8.0 17.0 17.3 13.8 124 4.6 9.4 8.6 16.4 17.5 15.2 125 7.0 6.6 8.7 16.O 15.2 15.8 126 18.7 9. 1 9.1 15.7 17.8 16.4 128 31.8 8.8 9.6 15. 1 18.0 17.6 130 34.5 8.4 10.0 14.5 18.0 18.5
other 0.9
TELLURIUM
~i i i 1 1 r~ 1 r
• % o C Í Y . n M Y . p n H
Te
" • • v . - I 1 M « I J I I I 12 16 20 24
Ev (MeV)
See giant dipole resonance in 103 s A s 133 nuclei.
5 3 2 BÜLOW and FORKMAN
IODINE
I,'l ' > " I "h
1
fflj.Tn)
' M 'P.») '(».M)
'I '«Wf l'I
I
•.»II J
«C(f.2n(<-(y.p2n«
'''ll'lj
' M ' 'ill»,») w l 1
12 16 20 24 28
E y (MeV)
, H. Gig, Tn)
/ \
- t a — Tl».2l) T ( r ,3 . )
/ 'V
s C ( j . n ) * ( j . p n n
"»M '(T.21) iiUill^.
' ( r . s i )
I 3 « 3 S 20
ïC ( j .2n) * ( j .p2n)3
"TÔT l».2l)
8 12 16 20 24 28 32
E y (MeV)
Ref: Phys. Rev. 148 (1966) 1198
R. L. Bramblett et al.
Ref: Nucl. Phys. Al 33 (1969) 417
R.Bergère et al.
Z A A B U N D G , N G , P
53 127 100.0 9.1 6.2
G , 2 N G , N P G , 2 P
1 6 . 2 1 5 . 3 1 5 . 3
PHOTONUCLEAR CROSS-SECTIONS 5 3 3
CAESIUM
133 CS
O (mb)
,, oC(Y.n)+(v,pn)] * i
' ( v * . l I ' 1 1 .
12 16 20 2« 2 8
E y (MeV)
0 i
(mb) '
0 ( Y . 2 n ) 1 | H
jî, 1' . 1 1 !
t
1 1
hy, •)
8 12 16 20 24
E v (MeV) 28
Ref: Phys. Rev. 177 (1969) 17^5, B.L.Berman et al.
300
200 0
( m b )
100
0
Ref: Nucl- Phys. A219 (197*0 39, A.Leprêtre et al.
Z A ABUND G,N G,P G,2N G,NP G,2P
55 133 100.0 9.0 6.1 16.2 15.0 15.2
See giant dipole resonance in 103 s A í 133 nuclei.
_ 133Cs
• •
oL(v.n) + (v.pn)3 «
•
• •
s • •
4
• •
• #
\
1 1 1 F 1 1 1 1 10 K 18 22
Ev(MeV)
5 3 4 BÜLOW and FORKMAN
BARIUM
'lr.nl,
la
\ o( j . Tnl
/ ^ V
t(Y,i)( ?irt2n. V.3n i i J i • r - i • i • .
tir.2n)
aCty.nMy.pnl3
i n W j T r r
12 16 20 24 28 E y (MeV)
I l t oly.Tn)
; * ' .
/ ' 1
'(».") '(».2» W» '
I 200
I 100
/*••, ffCly.nlMj.pnH
' M •IV» (T.3<)'
i « I I «
OC(j,2n)»t|.p2n)3
t "li'l! ; / *(T,21) <T.3»r
» » " E y (MeV)
Ref: Phys. Rev. C2 (1970) 2318 Ref: Nucl. Phys. A172 (1971)42 6 B. L. Berman et al. H. Beil et al.
z A ABUND G,N G,P G,2N G, NP G,2p
56 134 2.4 9.5 8.2 16.7 17. 1 14.3 135 6.6 7.0 8.3 16.4 15.1 14.8 136 7.8 9.1 8.5 16.1 17.4 15.4 137 11.3 6.9 8.7 16.0 15.4 15.8 138 71 .7 8.6 9.0 15.5 17.3 16.4
other 0.2 See compilation for giant dipole resonance in N = 82 nuclei.
PHOTONUCLEAR CROSS-SECTIONS 5 3 5
LANTHANUM
Y.2n o— Y-3n
Ref: Nucl. Phys. A121 (1968) 463 R. Bergère, H.Beil and A.Veyssière
See compilation for giant dipole resonance in N = 82 nuclei.
Z A ABUND G, N G,P G,2N G,NP G,2P
57 139 99.9 8.8 6.2 16.1 14.8 15-2
other 0.1
5 3 6 BÜLOW and FORKMAN
CERIUM
Ey(MeV)
— • — V - n
Y,2n — Y . 3 n
Ref: Nucl. Phys. AI 33 (1969) 417 R. Bergère, H.Beil, P.Carlos and A. Veyssière
See compilation for giant dipole resonance in N = 82 nuclei.
z A ABUND G,N G,P G,2N G, NP G,2P
58 88.5 9.2 8.1 16.7 16.9 14.3
142 11.1 7-2 8.8 12.6 1 5.6 15.8
other o. 4
PHOTONUCLEAR CROSS-SECTIONS 537
PRASEODYMIUM
i 200
J "
» ffly.Tn)
•
/ S
i
'm
V i H l M l l l ^ U
'(».n) T(».an) (r,3n)'
300
250
• 200
HT 1 i
aC(j.n) * (y .pn)]
V .i,.«lililí. :,iii.:i!l. "t ? 1 "t ir 'i" ¡i M j (».3») •
.1 3
J -" W
"L1 1 V.2H)
0 [ < j . 2 n H < y . p 2 n ) J
t!1; ;:!;
(».snj ¡t !•
U 20 26 32
E y (MeV)
E y (MeV)
Ref: Nucl. Phys. Al 72 ( 1 97 1 ) 42 6
H.Beil et al.
8 10 12 14 16 18
E y ( M e V )
Ref: Phys. Rev. 1 48 ( T 966 ) 1 1 98
R.L.Bramblett et al.
R e f : P h y s . R e v . C 2 ( 1 9 7 0 ) 1 1 2 9
R . E . S u n d e t a l .
A B U N D G , N G , P G , 2 N G , N P G , 2 P
59 141 100.0 9.h 5.2 17.3 14.4 13.3
See compilation for glant dipole resonance in N = 82 nuclei.
914 BÜLOW and FORKMAN
NEODYMIUM
200
100
0
0
( m b )
o
0
0
0
0 8 1 0 12 1 4 1 6 1 8 2 0 2 2
Ey (MeV)
a[_(y >n) + (y,pn) + (y,2n)]
Ref: Nucl.Phys. A219 ( 197^) 6l , P.Carlos et al. A A B U N D G, N G,P G, 2N G,NP G,2P 142 27.1 9.8 7.2 17.9 16.6 12.5 I43 12.2 6.1 7.5 15.9 13.4 13.I 144 23-9 7.8 8.0 13.9 15.3 13.8 145 8.3 5.7 8.0 13.6 13.7 14.4 146 17.2 7.6 8.6 13.3 15.5 15.1 148 5-7 7-3 9.2 1 2.6 15.9 16.2 150 5.6 7-4 9.6 1 2.4 16.5 17.6
• • r h S
> . • . 1 5 0
• ; >
/ / P* 1 M-
f p . < i ••
See compilation for giant dipole resonance in N s 82 nuclei.
PHOTONUCLEAR CROSS-SECTIONS 5 3 9
SAMARIUM
200
O
(mb)
T 1 I ' I 1 I ' I I 1 ' I 1—
0 [ ( ¥ . n M y . p n M y , 2 n ) ]
• a - » • i »
r . * i
V • IS*
.f 152
S m
S m
u S m
S m
S m
10 H 18 2 2 E y (MeV)
Ref: Nucl. Phys. A219 ( 197^) 61, P.Carlos et al.
A ABUND G,N G,P G, 2N G, NP G, 2P
144 3.1 10.6 6.3 19.0 16.2 10.6 1 kj 15.0 6.4 7.1 l4.8 13.4 12.4 148 11.3 8.1 7.6 14.5 15.3 13.0 149 13.8 5.9 7.6 14.0 13.5 13.6 150 7.4 8.0 8.3 13.9 15.5 1 4. 2 152 26.7 8.3 8.7 13.9 16.6 15.7 154 22.7 8.0 9.0 13.8 16.5 16.9
5 4 0 BÜLOW and FORKMAN
180
O
(mb)
90
0 8 12 16 20 IL, 28 E-y(MeV)
Dashed curve: est imated maximum systematic error owing to bremsstrahlung normalizat ion.
O (mb)
Refs Phys. Rev. 185 ( 1 969 ) 1576, B. L. Berman et al.
z A ABTJND G,N G,P G,2N G, NP G,2P 63 151 47.8 8.0 4.9 14.4 12.9 13.2
153 52.2 8.6 5-9 14.9 1 4.2 14.6
EUROPIUM
oC ( Y . n)+(y . p n ) ]
({}fi 153 c
i . i 1
i 5 ; — ,
T(y-0) . . T(r.2n) . . 1 1 ''Iii, j i Î T T ^
a [ ( 7 , 2 n ) + ( 7 , p 2 n ) l
i>
1
'111'], ' |l 1 • I
'(r.BI Ar. 2") T<r.»«> 1'
Ev.(MeV)
PHOTONUCLEAR CROSS-SECTIONS 541
GADOLINIUM
7 I 1 1 T—
^ n )
o C ( v . r i ) + ( Y n p ) D
i U
' 6 0 G d
'A
W n ) . " l Ü 10 26 U 18 2 2
E-y(MeV) Dashed curve: est imated max imum systematic error owing to bremsstrahlung normal izat ion.
Ref :
1 Ú 18 2 2 2 6 30 Ey(MeV)
Phys. Rev. 185 (1969) 1576, B. L. Berman et al.
z A ABUND G,N G,P G,2N G,NP G,2P 64 154 2. 1 8.7 7.6 15.1 16.2 13.5
155 14.7 6.4 7.6 15.1 14.1 14.1 1 56 20.5 8.5 8.0 15.0 16.2 14.7 157 15.7 6.4 8.0 14.9 14.4 15.2 158 24.9 7.9 8.5 14.3 16.0 15-9 160 21.9 7.5 9.3 13.4 16.0 «
other 0.2
5 4 2 BÜLOW and FORKMAN
TERBIUM
» ¿i! '«Tk
! » I j . T n l
! k
J i ' V i '(».<) '(r.21) V.31) 1.
Ï 3 50
TW ( V )
t U 'Hi ""'üäi
aC(j.2n)-f(||.p2n)J
12 16 20 24 28
E y (MeV)
I 200
S 5 loo
*5
300
250
Î 2 00
-I ISO
¡i il , '¡.IM' o(^.Tn)
>
¡i
'l
pir,m "IT,»») r.s»)
! t|¡Hl ' 1 'l
1
oC(y.n) + ty.pn)3
i i
» M .i
H 1
1
>1
'l|'l!l|| Hlll'l 1 ||j 'ir.il 'lr,2i| •|r,3i)
I 100 V ¿ 3 50
oC(y.2n) + {y.p2n)3
»
"»In ''•¡MI,!'!«,
1 ÍÜ -HHttk
12 16 20 24 28
Ey (MeV)
Ref: Phys. Rev. 133 (l964) B869
R. L.Bramblett et al.
Ref: Nucl. Phys. AI 21 (1968) 463
R.Bergère et al.
Z A ABUND G,N G,P G,2N G,NP G,2P
65 159 100.0 8.1 6.1 14.9 14.0 14.6
PHOTONUCLEAR CROSS-SECTIONS 5 4 3
HOLMIUM
Ha
/ \ y \ o(^.Tn)
ir.ai . i
t<r.2m '<r.3ni
0C(y,n)*(y,pn)]
ÎIT.2B)
0C(j .2n)»( j .p2n)3
T y . "Tir.aii
16 20 2«
E Y (MeV) 2 8
I 200
i j 1 0 0
' ' M " 'I, o(j .Tn)
""««ihV 'kV
' ( r . 2 n ) ' I r . j n l
'hi' i
V . n l '(T.2I1) t|r.3i>) 1 1
0C((.2n) + (y.p2n)]
' I
'(r.n) nimmt',
i ""Hl , . I 'i'iHI
I
(r.2n) I i i ,
U 18 22
Ey (MeV) 26 30
Ref: Nucl. Phys. AI 21 (l968) 463 Ref: Phys. Rev. 185 (1969) 1576
R.Bergère et al. B. L.Berman et al.
Z A ABUND G,N G,P G,2N G,NP G,2P
67 165 100.0 8.0 6.2 14.7 13.9 14.8
5 4 4 BÜLOW and FORKMAN
ERBIUM
Ey(MeV)
— • — Y . n
—*—Y.2n —û—Y .3n
Refs Nucl. Phys. A133 (19¿9) 4l7
R. Bergère, H.Beil, P.Carlos and A.Veyssière
A ABUND G, N G,P G,2N G, NP G,2P
164 1 .6 8.9 6.9 15.8 15-3 12.3
166 33.4 8.5 7.3 15.1 15-3 13.5
167 22.9 6.4 7-5 14.9 13.8 14.3
168 27. 1 7.8 8.0 14.2 15-3 15.0
170 14.9 7-3 8.6 13.3 15.3 -
other 0.1
PHOTONUCLEAR CROSS-SECTIONS 5 4 5
LUTETIUM
EY(MeV)
- • — Y . n
—k—"Y ,2n —ùr— y.3n
Ref: Nucl. Phys. A 1 33 (1969) 4-17
R. Bergère, H.Beil, P.Carlos and A.Veyesière
z A A BUND G, N G,P G,2N G, NP G,2P
71 175 97.4 7-7 5.5 14.4 13.0 13.5
176 2.6 6.3 6.0 14.0 1 1 .8 14.1
5 4 6 BÜLOW and FORKMAN
TANTALUM
a(y.Tn)
!l»,Ol t(r,2«l
250
^ 200
J 150 ¿ l0°
« - 50
250
200
•S- 150
S 100
I .
o C ( j , 2 n | t ( ^ , p 2 n n
'I I " W
i
t i i i j 0 C
• i ,
1
r
i ï
il.
•t.,
lit >
<|r.»l T!f.2iJ îjï,3»;
500
400
• 300 1
I 200
500
400
1 300 I
| 2 0 0
J 100
ffiy.Tn)
i 'I
s. y •f-
y
/V«,
i 'i
/ \ I1 "«,1,1(4,
aC(y.n)*(y.pn)3
'(T.21I 'R31|
A 1 l i t
oC(y, 2n) • I j . p î n l J
1
,1 wiiiii S
Tliuli • » t u . )
H 18 22
Ey(MeV) 12 18 2« 30
E y (MeV)
Ref: Phys. Rev. 1_22 (1963) 2723 Ref: Nucl. Phys. A121 (1968) 463
R. L.Bramblett et al. R. Bergère et al.
Z A ABUND G,N G,P G,2N G,NP G,2P
73 181 100.0 7.6 5 - 9 1 4 . 2 1 3 • 3 1 3 - 9
PHOTONUCLEAR CROSS-SECTIONS 5 4 7
TUNGSTEN
186 VV
a I m b ) :
w * . • i * i
/ \
0C(y.n) +(^.pn)3
\ '(y.ll
w Á
0 d y . 2 n > * ( f . p 2 n ) ]
O I m b ) 1
I I I I i
' " ' i
/ ''S,'...!,,,, V ) Tlr,W. ') I ' ' I H
12 18 24 30
E * I MeV)
Ref: Phys. Rev. 185 (1969) 1576, B.L.Berman et al-
4 0 0
(mb) 200
0
¿ 0 0 o
(mb)
200
0
5 10 15 20 25 E - y ( M e V ) Dashed curves show the cross-sections
corrected for multiplicity
Ref : Sov. J. Nucl. Phys. 1 2 (1973) 1 , Yu. I.Sorokin et
Z A ABUND G,N G,P G,2N G, NP G,2P
74 182 26.4 8 .1 7.1 1 4. 7 14 . 7 13.0
183 1 4.4 6.2 7.2 14.2 13.3 13.5
184 30.6 7.4 7 . 7 13-6 14.6 14.3
186 28.4 7.2 8.4 13.0 15.2 -
other 0.2
5 4 8 BÜLOW and FORKMAN
GOLD
The solid line is a Lorentz line.
Ref: Nucl. Phys. Al59 (1970) 561 , A.Veyssière et al.
Upper curve: a ( Y , n ) + a(y,np)
Lower curve: cr(Y»2n) + 3a(y,3n).
Ref: Phys. Rev. 127 (1962)1273 , S.C. Fultz
Z A ABUM) G,N G,P G,2N G,NP
79 197 100.0 8.1 5.8 i4.7 13.7
et al.
G,2P
1 3 . 9
PHOTONUCLEAR CROSS-SECTIONS 549
LEAD
16 20 24
E-y (MeV)
A 207pb
p oC(J.n)
/ ^ • (Y.pn)l p oC(J.n)
/ ^ i I
1 ! i M
•"'•"•'" Wl i l l i'l' « t " W ! 11 '» (r.a) (r,2t) ' lr.3» V) ?
14 18
Ey (MeV) 22 26
Ref: Phys. Rev. 136 ( 1 964) B126, R.R.Harvey et al.
«00
500
s 400 *
1 300
208p b
' 'l 1
\ \ »"mi1 y ' A ( t
M IM") V ii,ir 1 U 1 1
6 10 14 18 22 26
Ey (MeV)
Ref: Phys. Rev. 136 (1964) B126
R.R.Harvey et al.
12 18 24 30 36
Ey (MeV)
Ref: Nucl.Phys.Al59 (l970) 561
A.Veyssière et al.
z A ABUND G,N G,P G,2N G,NP G,2P
82 204 1.5 8.4 6.6 15.2 14.4 12.3
206 23.6 8.1 7.3 14.8 14.8 13.7
207 22.6 6.7 7.5 14.8 14.0 14.7
208 52.3 7.4 8.0 14. 1 14.9 15.4
5 5 0 BÜLOW and FORKMAN
BISMUTH
150 O
(mb) 100
50
0
Ref: Phys. Rev. 1 36 (l964) B126 R. R.Harvey et al.
Z A ABUND G,N G,P G,2N G,NP G,2P
83 209 100.0 7.5 3.8 i4.4 11.1 n . 8
o(y,2n)
—liUlI I I I , \
E v ( M e V )
PHOTONUCLEAR CROSS-SECTIONS 5 5 1
THORIUM
Ref: Nucl.Phys. Al99 (1973) 45. A.Veyssière et al.
E y (MeV)
Ref: Nucl.Phys. A206 (1973) 593, M.V. Yester et al.
Z A ABUND G,N G,P G,2N G,NP G,2P
90 232 100.0 6.4 7.8 11.6 13.7 13.7
5 5 2 BÜLOW and FORKMAN
URANIUM
Refs Phys. Rev. 133 (i964)b676 Ref: Nucl.Phys. A199(1973)45 C.D.Bowman et al. A.Veyssière et al.
280
240
20.0
0 1 6 0
(mb)
12.0
80
40
0 0
2 3 6 u : Nucl. Phys. A206 (1973) 593 , M. V. Yester et al.
Ref: Nucl . Phys. A212 (1973) 221 , R.A. Anderl et al.
Z A ABUND G,N G,P G,2N G, N P G,2P
92 235 0.7 5.3 6.7 12.1 11.9 12.4
238 99.3 6.1 7.7 11 .3 13.6 -
Ev (MeV)
PHOTONUCLEAR CROSS-SECTIONS 5 5 3
NEPTUNIUM
Reft Nucl. Phys. A199 (l973)
A.Veyssière, H.Beil, R. Bergère, P.Carlos, A. Lepretre and K.Kernbath
Z A ABUND G,N G,P G,2N G, N P G,2P
93 237 - 6.6 4.9 12.3 11. h 12.0
554 BÜLOW and FORKMAN
Giant ciipole resonance in A~ 90 nuclei
(mb)
250
200
150
100
50
0
50
0
50
0
50
0
50
0,
• 1 1 • • • 1 • • i i • • • i • • i • • i • • • i ' 1 ' i " •
o : ( Y , n ) + ( Y p n ) * ( Y , 2 n ) ] / s , —
y - " ' ' y . . - " " /
\ A \ \ t T ' \ \ f
/ \ \ 1
\
f \
a
7 \ V \ 1 \ \ " " " i
/ \ \ " '*' • ''V ' ' , \ \ • ' " v i , \ i s \ — 9 0 ,
4 0
t.
sW j
1 \ / \ X T ' .
8 9 y
39
Y"'1 '»1!
\ V"' -3 8 S '
/
. . . i : . ! " . ' i . . . i . .
\ HI,
" " M
1 . . . 1 . . . 1 . . . 1 . . . 1 . . . 1 . . 3 l R b .
8 12 16 20 2 4 2 8
Ey (MeV)
Ref: Nucl. Phys. AI 75 (l97l) 609 A. Leprêtre et al.
PHOTONUCLEAR CROSS-SECTIONS 5 5 5
Giant dipole resonance in 103íA£133 nuclei
E Y ' M e V ' E-y (MeV)
Ref: Nucl. Phys. A219 (1974) 39, A. Leprêtre et al.
932 BÜLOW and FORKMAN
Giant dipole resonance in N=82nuclei
Ref: Nucl. Phys. AI 72 ( 1 9 7 1 ) 426 H. Beil et al.
PHOTONUCLEAR CROSS-SECTIONS 557
Total photonuclear absorption: ö t o t
1« 26 1« Ey (MeV)
26 3* Ey (MeV)
Imb) j l
" 1.5
1.0
^iViin'miiii'ii» i
Imb) »•sic '
10 «0 70 100 130 Ey(MtV)
1« 26 34 Ey (MeV)
(0 70 100 130 Ey (MeV)
(See also next page)
558 BULOW and FORKMAN
Total photonuclear absorption : Gtot
(cont.)
10 n 26 3< Ev (MeV) Ey (MeV) 1
E* IMeVI E j ( M e V )
I C = _ 60 NZ
A
HEy) = / a(Ey) dEy 10
^ ( E y J ^ / o i E y ) dEy
h • Ey = 35MeV NBS oEy= 35MeV Ahrens et al
°Ey = IAO MeV Ahrens et al
Ref: Nuclear structure studies using electron scattering and photoreaction Sendai Conf. 1972, page 213, J. Ahrens et al.
HOW TO ORDER IAEA PUBLICATIONS
Exclusive sales agents for IAEA publications, to whom all orders and inquiries should be addressed, have been appointed in the following countries:
U N I T E D K I N G D O M Her Majesty's Stationery Off ice, P.O. Box 569, London SE 1 9 N H
U N I T E D STATES OF A M E R I C A U N I P U B , Inc., P.O. Box 4 3 3 , Murray Hill Station, N e w Y o r k , N . Y . 10016
In the following countries IAEA publications may be purchased from the sales agents or booksellers listed or through your major local booksellers. Payment can be made in local currency or with UNESCO coupons.
A R G E N T I N A Comisión Nacional de Energía Atómica, Avenida del Libertador 8 2 5 0 , Buenos Aires
A U S T R A L I A Hunter Publications, 5 8 A GlppsStreet , Coll ingmood, Victoria 3 0 6 6 B E L G I U M Off ice International de Librairie, 30, avenue Marnix , B -1050 Brussels C A N A D A In format ion Canada, 171 Slater Street, O t tawa , O n t . K 1 A O S 9
C.S.S.R. S .N .T .L . , Spálená 51, CS-11000 Prague
Al fa , Publishers, Hurbanovo námestie 6, C S - 8 0 0 0 0 Bratislava F R A N C E Off ice International de Documentat ion et Librairie, 48 , rue Gay-Lussac,
F - 7 5 0 0 5 Paris H U N G A R Y Kultura, Hungarian Trading Company for Books and Newspapers,
P.O. Box 149, H - 1 0 1 1 Budapest 6 2 I N D I A Oxford Book and Stationery Comp., 17, Park Street, Calcutta 16
I S R A E L Heiliger and Co., 3, Nathan StraussStr. , Jerusalem I T A L Y Librería Scientifica, Dot t . de Biasio Lucio "ae iou" ,
V ia Meravigli 16, 1-20123 Milan JAPAN Maruzen Company, Ltd. , P.O.Box 5050 , 100-31 T o k y o International
N E T H E R L A N D S Marinus Ni jhoff N . V . , Lange Voorhout 9 -11 , P.O. Box 269, The Hague P A K I S T A N Mirza Book Agency, 65, The Mall, P.O.Box 729 , Lahore-3
P O L A N D Ars Polona, Céntrala Handlu Zagranicznego, Krakowskie Przedmiescie 7, Warsaw
R O M A N I A Cart imex, 3-5 13 DecembrieStreet , P.O.Box 134-135, Bucarest SOUTH A F R I C A Van Schaik's Bookstore, P.O.Box 724, Pretoria
Universitas Books (Pty) Ltd., P.O.Box 1557, Pretoria SPAIN Nautrónica, S .A. , Pérez Ayuso 16, Madrid-2
SWEDEN C.E. Fritzes Kungl. Hovbokhandel, Fredsgatan 2, S -10307 Stockholm U.S.S.R. Mezhdunarodnaya Kniga, Smolenskaya-Sennaya 32-34 , Moscow G - 2 0 0
Y U G O S L A V I A Jugoslovenska Knjiga, Terazije 27, Y U - 1 1 0 0 0 Belgrade
Orders from countries where sales agents have not yet been appointed and requests for information should be addressed directly to:
Publishing Section, V W ê International Atomic Energy Agency,
Kärntner Ring 11, P.O.Box 5 9 0 , A-1011 Vienna, Austria
INTERNATIONAL A T O M I C ENERGY A G E N C Y V I E N N A , 1974
PRICE: US $26 .00 SUBJECT GROUP: III Austr ian Schi l l ings 475,- Physics/Nuclear Data (£10 .80; F.Fr.126,-; DM 64,-)