future for (stopped) rising.....the road to despec

21
Future for (Stopped) RISING .....the road to DESPEC.

Upload: gabriel-ball

Post on 17-Jan-2016

219 views

Category:

Documents


0 download

TRANSCRIPT

Page 1: Future for (Stopped) RISING.....the road to DESPEC

Future for (Stopped) RISING .....the road to

DESPEC.

Page 2: Future for (Stopped) RISING.....the road to DESPEC
Page 3: Future for (Stopped) RISING.....the road to DESPEC

D. Rudolph et al., RISING, Feb/Mar'06

Page 4: Future for (Stopped) RISING.....the road to DESPEC

Stopped Rising Array @ GSI: 15 x 7 element CLUSTERsPhotopeak efficiency ~11% at 1.3 MeV....best array in the world for such studies....bar none.

Page 5: Future for (Stopped) RISING.....the road to DESPEC

γγ Coincidence Spectra

D. RudolphD. Rudolph

Page 6: Future for (Stopped) RISING.....the road to DESPEC

Decay Scheme of 54Ni

D. RudolphD. Rudolph

Page 7: Future for (Stopped) RISING.....the road to DESPEC

Fission and fragmentation studies in A=130 region

130130CdCd

Many new isomersNew systematics Isomeric ratios from two reaction mechanism

131131InIn

Page 8: Future for (Stopped) RISING.....the road to DESPEC

100Sn vs 132SnH. Grawe: N=50 TBME scaled by (88/132)1/3 to N=82 SPE from 99In and 131In, respectively

Page 9: Future for (Stopped) RISING.....the road to DESPEC

S. Pietri et al.,RISING data 107Ag beam

86Tc

88Zr

Cd

Ga

Page 10: Future for (Stopped) RISING.....the road to DESPEC

Possible Physics to be addressed by Next (Isomer) Campaign?

• 238U beam....– 128Pd82 (96Pd50 mirror.... holes in N=82)– 202Os126....(holes in N=126)– Neutron-rich ~Pb (212-214Pb)....– 190W-170Dy (K-isomerism as a probe of def.)– Highest spins in fragmentation (> 144Tb)....

• 208Pb at high spins? I ~ 30 hbar?

– Fission fragment studies, shape evolution (N~60-70...Gary Simpson....)

• Other beams..– Isospin Sym. Tz=-2, 52Ni24:52Cr28 ....(Dirk Rudolph...)– N=Z ~100Sn (Bob Wadsworth, Magda Gorska...)

Page 11: Future for (Stopped) RISING.....the road to DESPEC

March 2006:148Tb I=27ћ 147Gd I=49/2ћ

Highest angular momentum states observed in fragmentation

I nucleus published year and first author:19/2 43Sc 1994 W-D Schmidt-Ott et al.10 54Fe 1995 R. Grzywacz et al.25/2 205Tl, 205Pb 1998 M. Pfutzner et al.35/2 175Hf, 179W, 181Re 2002 M. Pfutzner et al.43/2 215Ra 2006 Zs. Podolyák et al.27 148Tb 2007(?) E. Werner-Malento, Zs. Podolyák et al.

Ang

ular

mom

entu

m

0

5

10

15

20

25

30

1990 1995 2000 2005 2010

year of publication

148Tb

Page 12: Future for (Stopped) RISING.....the road to DESPEC

Open questions in nuclear physics

limit of existence, neutron skins, change in the shell structure, weak binding effects, nucleosynthesis …

Page 13: Future for (Stopped) RISING.....the road to DESPEC

Far future: FAIR

yields

Page 14: Future for (Stopped) RISING.....the road to DESPEC

Future

β decay: RISING active stopper (2007)(J.Benlliure, P. Regan et al.)

isomeric decay: CERN-ISOLDE

Page 15: Future for (Stopped) RISING.....the road to DESPEC

Advanced

GAmmaTracking

Array

High photo-peak efficiencyGood angular resolution <1degree FWHM=10 keV at β=50% = 5 keV at β=20%Ideal for high velocity beams

Page 16: Future for (Stopped) RISING.....the road to DESPEC

Grant success:• Advanced Implantation Detector Array (AIDA)• Part of UK contribution to FAIR• EPSRC grant to:

Universities of Edinburgh and Liverpool Daresbury and Rutherford• Grant award £2.25M• 4 year grant

DESPEC ‘Active Stopper’

(AIDA) funded in the UK

AIDA

Si strip detectors ASIC readoutMicroelectronics

Electronics and DAQ

Page 17: Future for (Stopped) RISING.....the road to DESPEC

Stopped Rising Array @ GSI: 15 x 7 element CLUSTERsPhotopeak efficiency ~11% at 1.3 MeV...next array must be even better (....for Stopped Beams.)

Page 18: Future for (Stopped) RISING.....the road to DESPEC

1) Daresbury Laboratory UK 2) University of Liverpool UK 3) University of Surrey UK 4) UAM Madrid Spain 5) Universidad de Salamanca Spain 6) IFIC Valencia Spain   7) GSI Darmstadt Germany 8) Universit ät zu Köln Germany 9) IFIN-HH Bucharest Romania10) University of Camerino Italy11) University of Jyvaskyla Finland12) University of Sofia Bulgaria13) Royal Inst. of Tech., Stockholm Sweden14) IReS Strasbourg France

Members of the DESPEC Ge array working group

• 11 February, 2005 GSI, Germany

• 7 April, 2005 Surrey, UK

• 4 November, 2005 Madrid, Spain

• 22 February, 2006 GSI, Germany

Meetings

http://www.ft.uam.es/Nuclear/Nuc_Exp_Inv_DESPEC_home.htm

DESPEC ‘active stopper’ funded in last round (Liv. + Edin. + DL. + RAL)

Page 19: Future for (Stopped) RISING.....the road to DESPEC

Alternative: array of 6/8 Clover detectors

DESPEC gamma-ray arraymajor UK Grant to be:Surrey, Liverpool, CLRC,Daresbury, York, Brighton, Manchester, Paisley….

Page 20: Future for (Stopped) RISING.....the road to DESPEC

Array of stacks of seg-mented planar Ge detectors

Array of CLOVER detectors

?• prototype• simulations

THE question ......

Page 21: Future for (Stopped) RISING.....the road to DESPEC

DESPEC (DEcay SPECtrocsopy)

γ-ray tracking cluster

Stanislav TashenovGSI, Darmstadt