deep inelastic reactions
DESCRIPTION
Deep inelastic reactions. V. Zagrebaev and W. Greiner, 2007. superheavy isotope. ≈ 278 Sg. 238 U. 248 Cm. ≈ 208 Pb. fission. primary fragments. New methods: SHIPtrap. 147 Ho. 147 Dy. 147 Tb. 147 Er. Isobar separation at A=147 in the purification trap. 8.44 MeV. - PowerPoint PPT PresentationTRANSCRIPT
Deep inelastic reactions
238U
248Cm
primaryfragments
superheavyisotope
≈ 208Pb
≈ 278Sg
fission
V. Zagrebaev and W. Greiner, 2007
New methods: SHIPtrap
-1 0 1 2 3 4 5118
120
122
124
126
128
130
G.S.m
ean
TO
F/u
s
exc. freq. / Hz
147Dy+I.S.
Isobar separation at A=147 in the purification trap
Isomeric state identification in the measurement trap
147Dy+
gsIsomer
732350 732400 732450 732500
0
10
20
30
40
50
60
147Tb
147Dy
147Ho
No.
of i
ons
Excitation frequency / Hz
147Er
147Er147Tb
147Dy
147Ho
Buncher
ExtractionRFQ
Fusion / transfer productsfrom SHIP
Stopping cell
Measurementtrap
Detector
Downstreamexperiments
Purificationtrap
M. Block et al.
8.44 MeV
750 keV
SHIPtrap: Most recent results, August 2008
M. Block et al.
48Ca + 208Pb => 254No + 2n
48Ca + 206Pb => 252No + 2n
σ = 2 b
σ = 900 nb
3 ions/s into gas-cell
σ = 400 nb
48Ca + 207Pb => 253No + 2n
BE = ± 10 keV
Excitation frequency / Hz – 846665
152
162
Deformed nucleiDeformed nuclei
82
10 5
126
ResultsResults
Neutrons
Pro
ton
s
fusionColdColdfusion
superdeformedSF IsomerssuperdeformedSF Isomers
Bi - modalfissionBi - modalfission
K IsomersK Isomers
fusionfusionHotHot 184
Increased stabilityIncreased stability
Search for
in nature,in transferreaktions
SHE Search for
in nature,in transferreaktions
SHE
Chemistry ofTA-elements
“Relativisticeffects“ inSH atoms
Chemistry ofTA elements
“Relativisticeffects“ inSH atoms
SHIP Collaboration
S. Hofmann, D. Ackermann, M. Block, H.G. Burkhard, S. Heinz, F.P. Heßberger, B. Kindler, I. Kojouharov,
B. Lommel, R. Mann, J. Maurer, G. Münzenberg, H.J. Schött, B. Sulignano Gesellschaft für Schwerionenforschung (GSI)
Darmstadt, Germany
A.G. Popeko, A.V. YereminFlerov Laboratory of Nuclear Reactions, JINR
Dubna, Russia
S. Antalic, S. Saro, B. Streicher Department of Nuclear Physics, Comenius University
Bratislava, Slovakia
P. Kuusiniemi, M. Leino, J. UusitaloDepartment of Physics, University of Jyväskylä
Jyväskylä, Finland
K. NishioJapan Atomic Energy Research Institute
Tokai, Japan
Z. GanInstitute of Modern Physics(IMP)
Lanzhou, China
R. DresslerPaul-Scherrer Institute (PSI)
Villigen, Switzerland