recent results from isolde and new opportunities with hie ...xe kr ar rn b c n o f ne he th ce pa...

7/05/2009 Mark Huyse 17/05/2009 Mark Huyse 1

Recent Results from ISOLDE and new Opportunities with HIE- ISOLDE

Mark Huyse

IKS, K.U.Leuven, Belgium


The many lives of ISOLDE

Prof. Bjorn JONSON (Chalmers University of Technology)


CERN accelerator complex

7 May 2008 CERN Academic Training Programme

1.2x1013 pps 1 or 1.4 GeV p

7/05/2009 Mark Huyse 47/05/2009 4

ISOLDE@CERN

Mark Huyse


RIB - Production reactions

• Spallation• Fragmentation• Fission

– n- (thermal or energetic), p-induced

– Photofission (e-beam)

• Fusion

1.4 GeV p

pn

238U

201Fr

+spallation

11

Li X

+ +fragmentation

143

Cs Y

+ +fission


Target – Ion-source matrix

Converter Target Standard

Converter

Target

Target

p+p+p+

UC66.9 %


Surface & plasma ionization


Laser ionization


ISOLDE Table of elements

H

Li

Na

Be

Mg

Cs

Rb

K

Fr

Ba

Sr

Ca

Ra

La

Y

Sc

Ac

Hf

Zr

Ti

Rf

Ta

Db

W

Sg

Re

Bh

Os

Hs

Ir

Mt

Pt

Ds

Au

Rg

Hg

112

Al

Tl

Si

Pb

P

Bi

S

Po

Cl

At

Nb

V

Mo

Cr

Tc

Mn

Ru

Fe

Rh

Co

Pd

Ni

Ag

Cu

Cd

Zn

In

Ga

Sn

Ge

Sb

As

Te

Se

I

Br

Xe

Kr

Ar

Rn

B C N O F Ne

He

Th

Ce

Pa

Pr

U

Nd

Np

Pm

Pu

Sm

Am

Eu

Cm

Gd

Bk

Tb

Cf

Dy

Es

Ho

Fm

Er

Md

Tm

No

Yb

Lr

Lu

+ SURFACE –hot PLASMA cooled

LASER

ION SOURCE:

113 114 115


ISOLDE yields, 2006

http://isolde.web.cern.ch/ISOLDE/

So far >600 radioactive isotopes of >60 elements @ 60 keV


October 2001: a new dimension

Post acceleration by REX-ISOLDEup to 3 MeV/u


REX-ISOLDE OVERVIEW

REXEBIS

Experiments REXTRAP

MASS SEPARATOR

7-GAP RESONATORS IH RFQ

9-GAP RESONATOR

3.0 MeV/u

2.2 MeV/u

1.2 MeV/u

0.3 MeV/u

ISOLDE beam

60 keV

RebuncherPrimarytarget High energy

driver beam

protons

Optional stripper ISOLDE

LinacLength 11 mFreq. 101MHz (202MHz for the 9GP)Duty cycle 1ms 100Hz (10%)Energy 300keV/u, 1.2-3MeV/uA/q max. 4.5 (2.2MeV/u), 3.5 (3MeV/u)

LinacLength 11 mFreq. 101MHz (202MHz for the 9GP)Duty cycle 1ms 100Hz (10%)Energy 300keV/u, 1.2-3MeV/uA/q max. 4.5 (2.2MeV/u), 3.5 (3MeV/u)

EBIS • Super conducting solenoid, 2 T

• Electron beam < 0.4A 3-6 keV

• Breeding time 3 to >200 ms

• Total capacity 6·1010 charges

• A/q < 4.5

EBIS • Super conducting solenoid, 2 T

• Electron beam < 0.4A 3-6 keV

• Breeding time 3 to >200 ms

• Total capacity 6·1010 charges

• A/q < 4.5

REX-trap• Cooling (10-20 ms)

Buffer gas + RF

• (He), Li,...,U• 108 ions/pulse(Space charge effects >105)

REX-trap• Cooling (10-20 ms)

Buffer gas + RF

• (He), Li,...,U• 108 ions/pulse(Space charge effects >105)

Nier-spectrometer

• Select the correct A/q and separate the radioactive ions from the residual gases.• A/q resolution ~150

Nier-spectrometer

• Select the correct A/q and separate the radioactive ions from the residual gases.• A/q resolution ~150

Total efficiency : 1 -10 %Total efficiency : 1 -10 %


World ISOL accelerated beams

FACILITYFACILITYFACILITYFACILITY DRIVERDRIVERDRIVERDRIVER POWERPOWERPOWERPOWER

(kW) (kW) (kW) (kW)

USER BEAMS ACCELERATEDUSER BEAMS ACCELERATEDUSER BEAMS ACCELERATEDUSER BEAMS ACCELERATED ENERGYENERGYENERGYENERGY

((((MeV/uMeV/uMeV/uMeV/u))))

PHYSICS REACHPHYSICS REACHPHYSICS REACHPHYSICS REACH

LOUVAINELOUVAINELOUVAINELOUVAINE----LALALALA----

NEUVENEUVENEUVENEUVE

(BELGIUM) (BELGIUM) (BELGIUM) (BELGIUM) 1989198919891989

30 MeV

protons

6 6666He, He, He, He, 7777Be, Be, Be, Be, 10,1110,1110,1110,11C, C, C, C, 13131313N, N, N, N, 15151515O, O, O, O, 18181818F, F, F, F, 18,1918,1918,1918,19Ne, Ne, Ne, Ne, 35353535ArArArAr

10

cyclotron

Astrophysics

Nuclear structure

HRIBFHRIBFHRIBFHRIBF

Oak RidgeOak RidgeOak RidgeOak Ridge (USA) (USA) (USA) (USA)

1997199719971997

100 MeV

p, d, α1 7777Be,Be,Be,Be, 17,1817,1817,1817,18F, F, F, F, 69696969As, As, As, As, 76767676----79797979Cu, Cu, Cu, Cu, 67,8367,8367,8367,83----85858585Ga,Ga,Ga,Ga, 80, 80, 80, 80,

82828282----86868686Ge,Ge,Ge,Ge, 69696969As, As, As, As, 83838383----84848484Se,Se,Se,Se, 92929292Sr, Sr, Sr, Sr, 118,120,122,124118,120,122,124118,120,122,124118,120,122,124Ag, Ag, Ag, Ag, 128, 132128, 132128, 132128, 132----134134134134Sn, Sn, Sn, Sn, 129129129129Sb,Sb,Sb,Sb,129,132,134,136129,132,134,136129,132,134,136129,132,134,136TeTeTeTe

2 - 10

tandem

(-ve ion source)

Nuclear Structure,

Astrophysics

ISAC TRIUMFISAC TRIUMFISAC TRIUMFISAC TRIUMF

(CANADA) (CANADA) (CANADA) (CANADA) 2000200020002000

500 MeV

protons

50 8,9,118,9,118,9,118,9,11Li, Li, Li, Li, 11111111Be, Be, Be, Be, 18181818F, F, F, F, 20202020----22, 2422, 2422, 2422, 24----29292929Na,Na,Na,Na,23232323Mg, Mg, Mg, Mg, 26262626AlAlAlAl

1.5 - 5

linac

Astrophysics,

Condensed matter,

Nuclear Structure

SPIRAL GANILSPIRAL GANILSPIRAL GANILSPIRAL GANIL

(FRANCE) (FRANCE) (FRANCE) (FRANCE) 2001200120012001

100 MeV/u

heavy ions

6 6,86,86,86,8He, He, He, He, 14,15,1914,15,1914,15,1914,15,19----21212121O,O,O,O, 18181818F, F, F, F, 17171717----19,2319,2319,2319,23----26262626Ne, Ne, Ne, Ne, 33333333----35, 44,4635, 44,4635, 44,4635, 44,46Ar, Ar, Ar, Ar, 74747474----77777777KrKrKrKr

2 - 25

cyclotron

Nuclear structure,

Astrophysics

REX ISOLDEREX ISOLDEREX ISOLDEREX ISOLDE

(CERN)(CERN)(CERN)(CERN)

2001200120012001

1.4 GeV

protons

3 8,98,98,98,9Li, Li, Li, Li, 10101010----12121212BeBeBeBe,10,10,10,10CCCC, 17, 17, 17, 17F, F, F, F, 24242424----29292929Na, Na, Na, Na, 28282828----28,3028,3028,3028,30----

32323232Mg,Mg,Mg,Mg,61616161----62626262Mn, Mn, Mn, Mn, 61616161----62626262Fe, Fe, Fe, Fe, 68686868Ni, Ni, Ni, Ni, 67676767----73737373Cu, Cu, Cu, Cu, 74,76,78,8074,76,78,8074,76,78,8074,76,78,80Zn, Zn, Zn, Zn, 70707070Se, Se, Se, Se, 88,9288,9288,9288,92Kr, Kr, Kr, Kr, 96969696Sr, Sr, Sr, Sr, 108108108108In, In, In, In, 106,108,110106,108,110106,108,110106,108,110Sn, Sn, Sn, Sn, 100,102,104,122,124,126100,102,104,122,124,126100,102,104,122,124,126100,102,104,122,124,126Cd, Cd, Cd, Cd, 138,140,142,144138,140,142,144138,140,142,144138,140,142,144Xe, Xe, Xe, Xe, 140,142,148140,142,148140,142,148140,142,148BaBaBaBa 148148148148Pm, Pm, Pm, Pm, 153153153153Sm, Sm, Sm, Sm, 156156156156Eu, Eu, Eu, Eu, 182,184,186,188182,184,186,188182,184,186,188182,184,186,188Hg, Hg, Hg, Hg, 202,204202,204202,204202,204RnRnRnRn

0.3 - 3

linac

Nuclear structure,

Condensed matter, Astrophysics

So far 63 radioactive isotopes of 24 elements


Users & Science

450 users 25 countries; 100 institutions175 projects (4 years)

E4%

F19%

S5%

P3%

PL5%

FIN3%

D29%

DK 3%

OTH 6%

IRL <1%BG 1%

NO 1%UK 4%

IL 1%

B11%

I 1%CZ 1%

RO 2%


A rich basket

• Solid-state studies • Mass measurements• Moments and radii• Decay studies• Coulomb excitation• Elastic scattering• Transfer reactions


The many lives of ISOLDE

Thanks to– The primary beams of CERN

• Almost the whole nuclear chart is available when combined with e.g. 238U

– Continuous target-ion source techniques• Laser ion source

– Innovative beam manipulation• Rex concept

– Innovative experimental set-ups• Collaps, ISOLTRAP, MiniBall, Witch, …

– Strong users community


The fifth decade of ISOLDE

7/05/2009 Mark Huyse 18

Technical goals for HIE-ISOLDE

� ENERGY: REX energy upgrade and increase of current capacity • Energy upgrade in 3 stages: 5.5 MeV and 10 MeV/u and lower energy

capacity

� INTENSITY: ISOLDE proton driver beam intensity upgrade -strongly linked to PS Booster improvements including linac4

• Faster cycling of the booster• New target stations for ISOLDE• New targets• New target handling system

� QUALITY: ISOLDE radioactive ion beam quality – more than half already financed through the ISOLDE collaboration

• Smaller longitudinal and transverse emittance• Done – RFQ cooler operational

• RILIS upgrade and LARIS construction• Done

• Charge breeder upgrade• Better mass resolution• Continue target and ion source developments

7/05/2009 Mark Huyse 19

Upgrade of the on-line RILIS

Two dye lasers were applied at 1st step of excitation - x 2.2

More power could be delivered to HRS target at the 2nd step of excitation

Ga ion beam has been produced with the SSL

Diode Pumped Solid State Nd:YAG Lasers as replacement of Copper Vapor Lasers:

Green Beams

45 W @ 511 nm

Yellow Beams

35 W @ 578 nm

•CVL

Green Beams

92 W @ 532 nm

UV Beam

18 W @ 355 nm

IR Beam

45 W @ 1064 nm

SSL15 ns @ 11 kHz 8 ns @ 10 kHz

CVLλλ =2

DLλλ2

11 =

SSLλλ =2

DLλλ2

11 =

•46%•54%

•46%

Improvement of ionization efficiency by SSL :

And CVLs are still available for runs …


Shape coexistence in the Pb region182Pb: T1/2 55 ms 1 count/min

186Pb

A.Andreyev et al. Nature, 405, 30 (2000)

Resonant Laser IonizationPb:Po: T. Cocolios et al., under analysis

ISOLDE; more than 30 years ago

H. De Witte et al. PRL 98 (2007) 112501

7/05/2009 Mark Huyse 21

ISCOOL: RFQ-COOLER

• Results + further studies– High transmission efficiencies

• Space charge limits (up to 108/s)– 10 x decrease in emittance

• Easy beam tuning– Bunching

• New applications (see further)– Yield measurements: continuous vs.

bunched– Losses due to trapping time

75GaContinuous photon counting

Photons gated by ion bunch


Spin assignment from in-source laser spectroscopy

Yield of 75Cu ~ 5x104/uC5 out of 6 peaks resolved

Kieran Flanagan et al.


Beam manipulation in REXTRAP and REX-EBIS

Jarno Van De Walle et al.

7/05/2009 Mark Huyse 24

3 stages installation

1.2 MeV/u

1.2 MeV/u

3 MeV/u

3 MeV/u

5.5 MeV/u

5.5 MeV/u

10 MeV/u

10 MeV/u

The proposed HIE-LINAC

Matteo Passini

Review panel of HIE-LINAC R&D work

15-16 June 2009

7/05/2009 Mark Huyse 25

Beam parameters

7/05/2009 Mark Huyse 26

The proposed HIE-LINAC layout

7/05/2009 Mark Huyse 27

What becomes possible with the upgrade

• Intensity– Not a step function but important for all users

• Quality of the beam– ISCOOL

• Energy of the beam– Solid-state physics

7/05/2009 Mark Huyse 28

Solid-state physics

7/05/2009 Mark Huyse 29




• Energy of the beam– Solid-state physics– Nuclear physics

• Decay studies

7/05/2009 Mark Huyse 30

Implantation-decay taggingSuccessfully used at LLN, TRIUMF, KVI

Rare charged-particle decay studies

Bf,i Bf,e

Spontaneous fission

EC/β+

ββββDF

γγγγ

γ

γ

γ

γγ

a

Andrei Andreyev, RiccardoRaabe et al.

7/05/2009 Mark Huyse 31





• Decay studies• Coulomb excitation


30,31,32Mg

67,69,71,73Cu, 68Cu, 70(m)Cu68Ni

74,76,78,80Zn28

50

20 40 50 82 182,184,186,188Hg

82

70Se 96Sr, 88Kr, 92Kr

20

The Coulex program

122,124Cd138,140Xe140,148,150Ba

106,108,110Sn

202,204Rn

61,62Mn, 61,62Fe


Coulomb excitation

0+

2+

4+

0+

2+4+

0

352

930

328

549613

0+

2+

4+

0+

2+4+

0

367

1089

375

534653

0+

2+

4+

0

405

1080

523621808

0+2+4+

0+

2+

4+

0+2+

4+

0

413

1005

824881

1208

182Hg 184Hg 186Hg 188Hg

1 12 0+ +→

1 14 2+ +→

2 12 0+ +→

1121 12 0Cd + +→

98+/-14

1 14 2+ +→Hg x rays

Hg x rays

coincidences with 1 12 0+ +→

2 12 2+ +→

Nick Bree, Andrew Petts et al.

7/05/2009 Mark Huyse 34

A step function in the Coulomb excitation studies

• Coulex will preferentially populated states strongly coupled to g.s.– Non-yrast states

• Distinction between prolate and oblate deformation• Degree of collectivity and degree of mixing can be deduced

Coulex @ SPIRAL

7/05/2009 Mark Huyse 35





• Decay studies• Coulomb excitation• Nuclear reactions

7/05/2009 Mark Huyse 36

Nuclear reactions for astrophysics

• Lower energies are needed• Adopted instrumentation

– See e.g. TUDA

7/05/2009 Mark Huyse 37

A step function in transfer reaction studies

• Due to the higher energy– Higher cross sections– Better detection sensitivity– Less model dependence of

spectroscopic factors– Dedicated recoil spectrometer

Courtesy Vinzenz Bildstein


Search for the second 0+ state in 32Mg applying a two-neutron transfer reaction

Tritium loaded Titanium foil0.5 mg/cm2 Ti foilatomic ratio 3H/Ti 1.5Beam intensity 4x104 30Mg/s

Kathrin Wimmer et al.

7/05/2009 Mark Huyse 39

Roadmap to HIE-ISOLDE

• The HIE-ISOLDE project is a participative project– Direct member state contributions should be at least 50%

• The first phase has been launched– RFQ cooler

• UK, Germany, France and Finland

– RILIS replacement• Sweden

– LINAC development and prototyping• Belgium

• Different grant requests are in progress• Discussion at the CERN level on the MidTermPlan are

ongoing

7/05/2009 Mark Huyse 40

Thanks and you are all kindly invited to:

recent results from isolde and new opportunities with hie ...xe kr ar rn b c n o f ne he th ce pa...

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