BRIKEN: a high-efficiencydetector for β-delayed …€¦ · Belen Gomez UPC Post-doc...
Transcript of BRIKEN: a high-efficiencydetector for β-delayed …€¦ · Belen Gomez UPC Post-doc...
[DETECTOR CONSTRUCTION PROPOSAL]
BRIKEN:
a high-efficiency detector for β-delayed
neutron measurements at RIKEN
C. Domingo-Pardo, BRIKEN Construction Proposal, NP-PAC, RIKEN Nishina Center 13-14/12/2013
Introduction: the BRIKEN project
• BRIKEN stands for Beta delayed neutron measurements at RIKEN.
• BRIKEN was born as a scientific need of nuclear data (half-lives and neutron branchings) for:
– Astrophysics
– Nuclear structure
– New reactor technologies
• BRIKEN aims at:
– most exotic nuclei � RIKEN BigRIPS
Open project; to join send
an email to:
– most exotic nuclei � RIKEN BigRIPS
– largest detection sensitivity � large neutron detector array (Large Collaboration)
� 1st BRIKEN Workshop @ Valencia, Spain 17-18/12/2012
(http://indico.ific.uv.es/indico/event/briken)
� 2nd BRIKEN Workshop @ RIKEN Nishina Center, 30-31/07/2013
(http://indico.ific.uv.es/indico/event/briken2)
Aim: Bring together the nuclear structure, astrophysics and reactor technology
communities in order to discuss the experimental setup and physics campaign for relevant
b-n experiments at the RIBF of RIKEN
C. Domingo-Pardo, BRIKEN Construction Proposal, NP-PAC, RIKEN Nishina Center 13-14/12/2013
Presenter Topic Nuclei
S.Nishimura
(RIKEN)
Below the 2nd r-process
peak 112Zr-129Pd
F. Montes (MSU) 2nd r-process peak 139Sb
C.Domingo (IFIC) Rare-earth r-process peak 151La-173Tb
G. Lorusso
(RIKEN) 2nd r-process peak 129Ag-142Te, 133-134Cd
M.Marta
I.Dillmann
(GSI/RIUMF) Multiple n emission 76Co-81Cu, 134Sn-133Cd
BRIKEN Physics Goals for a Project Proposal in 2014
Astrophysics:
r-process
nucleosynthesis
Nuclear
PROJECT
PROPOSAL
(GSI/RIUMF) Multiple n emission 76Co-81Cu, 134Sn-133Cd
K.Rykaczewski
(ORNL)
One and two n emiiters
above 78Ni and 132Sn Ni, Cu ,Zn, Ga, Ge, As, Se, In
R.Griwacz
(U.Tennessee)
One and two n-emission
below and at 78Ni
Cl, Ar, K, Ca, Sc, Ti, Ni, Cu, Zn,
Mn, Fe, Co
A Algora Deformation A~110 106-110Zr, 110-114Mo
B. Rubio (IFIC) Nuclear structure ~132Sn 130Ag-138Sb
A.Estrade
(Edinburgh) Masses Several
J.L. Tain (IFIC) β-strength NE of 78Ni 85Ge-97Br
D.Cano-Ott
(CIEMAT) Reactor technologies
Ge86,Rb-96,Rb100, Y98m,
Cd131, Sb137
Nuclear
Structure:
1n, 2n-
competition
in heavy
nuclei, FF vs.
GT, etc
New reactor
technologies
BRIKEN: Experimental Setup
BRIKEN neutron
detection set-up
Advanced
Implantation
Detection
Array• 10 pnA 238U @ 345 MeV/u
C. Domingo-Pardo, BRIKEN Construction Proposal, NP-PAC, RIKEN Nishina Center 13-14/12/2013
AIDA: Advanced Implantation Detection Array @ RIKEN
Advanced
Implantation
Detection
Array
Implant – decay correlations
• Multi-GeV implantation events
• Subsequent low-energy decays
• Tag events for gamma and neutron detector arrays
• 12x 8cm x 8cm DSSSDs
24x AIDA FEE cards
• 3072 channels
• Tag events for gamma and neutron detector arrays
Detector: multi-plane Si DSSD array
wafer thickness 1mm
8cm x 8cm (128x128 strips)
Instrumentation: ASIC
low noise (<12keV FWHM)
low threshold (0.25% FSR)
20GeV FSR plus ( 20MeV FSR or 1GeV FSR)
fast overload recovery (~ms)
spectroscopy performance
time-stamping
In-beam test @ GSI 250 MeV/u 209Bi SIS beam (2011)
C. Domingo-Pardo, BRIKEN Construction Proposal, NP-PAC, RIKEN Nishina Center 13-14/12/2013
BRIKEN neutron detector array
n + 3He →→→→ 3H + 1H + 0.764 MeV(abund.=0.00014%)
γ-quanta
wall-effect
full-energypeak
High selectivity of 3HeNeutron detection principle:
High efficiency using counters embedded in a high-density polyethylene matrix:
C. Domingo-Pardo, BRIKEN Construction Proposal, NP-PAC, RIKEN Nishina Center 13-14/12/2013
Institute Pressure Diameter Length # Tubes
GSI 10 1 600 10
JINR 4 1.18 500 20
ORNL 10 2 609.6 67
BRIKEN neutron detector array
• Despite the shortage in 3He, we have managed to gather a very large number of 3He
counters thanks to a joint international effort (BRIKEN Collaboration), which will make this
instrumentation available for a campaign of measurements at RIKEN.
• How to make the best possible use of such a large amount of neutron detectors?
�Maximise efficiency to measure weak emission rates, two-fold neutron emission, etc.
� Constant efficiency as a function of the neutron energy, to avoid systematic effects
related to the neutron energy spectrum.
ORNL 10 1 609.6 17
RIKEN 5.13 1 300 26
UPC 8 1 600 42
Total 182
C. Domingo-Pardo, BRIKEN Construction Proposal, NP-PAC, RIKEN Nishina Center 13-14/12/2013
Analysis of ring radii for 1” diameter counters at 8 atm
BRIKEN neutron detector array
11 cm radius
30 cm radius
radius
- Single ring filled with 3He counters at 8 atm and 1’’ diameter- Ring radii variation from 11 cm to 30 cm
Analysis of ring radii for 1” diameter counters at 8 atm
C. Domingo-Pardo, BRIKEN Construction Proposal, NP-PAC, RIKEN Nishina Center 13-14/12/2013
174 3He tubes of 6 different types:
BRIKEN neutron detector array
Ring Radius
(cm)
# 3He
Tubes
Pressure
(atm)
Diameter
(inch)
Institute
1 9.4 14 10 1 ORNL
2 13 12+12 5.13 1 RIKEN
3 16.8 10+26 10/8 1 GSI/UPC
4 20 18+18 5/8 1.18/1 JINR/UPC
5 27 26 10 2 ORNL
6 35 38 10 2 ORNL
174 He tubes of 6 different types:
• High average efficiency of > 60 %
• Flat efficiency 6% up to 4 MeV, 12% up to 5 MeV.
C. Domingo-Pardo, BRIKEN Construction Proposal, NP-PAC, RIKEN Nishina Center 13-14/12/2013
F100eVEn = εmax/εmin
Flat efficiency � Pn insensitive to neutron spectrum
High efficiency also for two-fold neutron emission:
BRIKEN neutron detector array
174 3He tubes of 6 different types:
Two Neutron Detection
High efficiency also for two-fold neutron emission:Ring Radius
(cm)
# 3He
Tubes
Pressure
(atm)
Diameter
(inch)
Institute
1 9.4 14 10 1 ORNL
2 13 12+12 5.13 1 RIKEN
3 16.8 10+26 10/8 1 GSI/UPC
4 20 18+18 5/8 1.18/1 JINR/UPC
5 27 26 10 2 ORNL
6 35 38 10 2 ORNL
174 He tubes of 6 different types:
• High average efficiency of > 60 %
• Flat efficiency 6% up to 4 MeV, 12% up to 5 MeV.
C. Domingo-Pardo, BRIKEN Construction Proposal, NP-PAC, RIKEN Nishina Center 13-14/12/2013
Beam view Side view
BRIKEN hybrid neutron detector array
# 3He Tubes Pressure
(atm)
Diameter
(inch)
Institute
42 8 1 UPC
10 10 1 GSI
16 12 2 ORNL
56 10 2 ONRL
24 5.13 1 RIKEN
20 5 1.18 JINR
� εn(500 keV) = 75.6%
� εn (2.5 MeV) = 66.5%
�εγ (1 MeV) = 3 %
• Level structure of daughter nuclei by
gating on the neutrons.
• Key performance features:
168 3He tubes of 6 different types:
C. Domingo-Pardo, BRIKEN Construction Proposal, NP-PAC, RIKEN Nishina Center 13-14/12/2013
BRIKEN CollaborationAgnieszka Korgul University of Warsaw Researcher [email protected] UPC Researcher [email protected] Estrade University of Edinburgh Post-doc [email protected] Algora IFIC Researcher [email protected] Kankainen University of Edinburgh Post-doc [email protected] Garnsworthy TRIUMF Researcher [email protected] Gomez UPC Post-doc [email protected] Rubio IFIC Professor [email protected] Calvino UPC Professor [email protected] Domingo Pardo IFIC Researcher [email protected] Mazzocchi University of Warsaw Researcher [email protected] Griffin University of Edinburgh PhD-Student [email protected] Lederer University of Edinburgh Post-doc [email protected] LSU Post-doc [email protected] Cano Ott CIEMAT Researcher [email protected] Cano Ott CIEMAT Researcher [email protected] Dolores Jordan IFIC Post-doc [email protected] Joss University of LIverpool Researcher [email protected] Lorusso RIKEN Post-doc [email protected] J. Gross ORNL Researcher [email protected] Cortes UPC Researcher [email protected] Gyorgy ATOMKI Researcher [email protected] Sakurai The University of Tokyo Professor [email protected]. Ueno RIKEN Professor [email protected] Dillmann TRIUMF Researcher [email protected] Simpson Daresbury Laboratory Researcher [email protected] Agramunt IFIC PhD-Student [email protected] Gabor ATOMKI Researcher [email protected] Kolos University of Tennessee Researcher [email protected]. Miernik University of Warsaw Researcher [email protected] P. Rykaczewski ORNL Researcher [email protected] Smith University of Notre Dame PhD student [email protected] Gyula Kiss ATOMKI Researcher [email protected]. Domingo-Pardo, BRIKEN Construction Proposal, NP-PAC, RIKEN Nishina Center 13-14/12/2013
BRIKEN CollaborationToshiuki Kubo RIKEN Researcher [email protected] Labiche Daresbury Laboratory Researcher [email protected] Matsui University of Tokyo PhD student [email protected] Niikura University of Tokyo Professor [email protected] Marta GSI Post-doc [email protected] Madurga University of Tennessee Post-doc [email protected] Montes NSCL Researcher [email protected] Brewer University of Tennessee Post-doc [email protected] Nishimura RIKEN Researcher [email protected] Kobayashi University of Tokyo Post-doc [email protected] Pereira Conca NSCL Researcher [email protected] University of Guelph Professor [email protected] J. Woods University of Edinburgh Professor [email protected] Grzywacz University of Tennessee Professor [email protected] Page University of Liverpool Professor [email protected] Page University of Liverpool Professor [email protected] Caballero Folch UPC PhD student [email protected] Taniuchi The University of Tokyo PhD student [email protected] Rinta Antilla University of Jyvaskyla Researcher [email protected] Momiyama University of Tokyo Student [email protected] Sokol JINR Researcher [email protected] Davinson University of Edinburgh Researcher [email protected] Luis Tain IFIC Researcher [email protected] Miyazaki University of Tokyo Student [email protected] Martinez CIEMAT Post-doc [email protected] Schatz MSU/NSCL Professor [email protected] Ma RIKEN Researcher [email protected] Xu University of Tokyo PhD student [email protected] Liu IMPCAS Researcher [email protected] A. Winger Mississippi State Univ. Researcher [email protected]. Wolinska Cichocka ORNL Post-doc [email protected] Wu Peking University PhD student [email protected] Fulop ATOMKI Researcher [email protected]. Domingo-Pardo, BRIKEN Construction Proposal, NP-PAC, RIKEN Nishina Center 13-14/12/2013
BRIKEN Collaboration
C. Domingo-Pardo, BRIKEN Construction Proposal, NP-PAC, RIKEN Nishina Center 13-14/12/2013
http://indico.ific.uv.es/indico/event/brikenhttp://indico.ific.uv.es/indico/event/briken2
BRIKEN: Summary & Conclusions
• Beta-delayed neutron branching ratios and half-lives are of relevance for
astrophysics, nuclear structure and new reactor technologies.
• We propose to build a very large neutron detector array (BRIKEN) based on 174 3He
tubes (readily available from the BRIKEN collaboration) for beta-delayed neutron
emission measurements at the RIKEN.
• The Advanced Implantation Detector Array AIDA will be used to detect with high• The Advanced Implantation Detector Array AIDA will be used to detect with high
precission both implant- and decay-events and to determine half-lives.
• Test (integration) with AIDA and (a part of) BRIKEN neutron detector in 2014 at RIKEN
either F11 or F12.
• Proposals to be submitted under the same umbrella as a “Project Proposal” for the
next PAC in 2014.
• The project is open, new collaborators are welcome to join!
C. Domingo-Pardo, BRIKEN Construction Proposal, NP-PAC, RIKEN Nishina Center 13-14/12/2013
Backup Slides
Background MeasurementsBackground Measurements
BACKGROUND EVENTS
ARTEFACTS
Average 1-2
Counts/min
Monte Carlo calculations forcalculations for
BRIKEN Geometry
Monte Carlo simulations of BRIKEN detector configurations
C. Domingo-Pardo, M.D. Jordan, J.L. TainInstituto de Fisica Corpuscular, Valencia, Spain
• Simulation framework• Some preliminary facts• Some preliminary facts• Geometries without clovers• Geometries with clovers• Reliability of simulations• Shielding• βnγ coincidences• Conclusions
Second BRIKEN Workshop, RIKEN, July 29-30, 2013
• Simulation codes:• Geant4 version 9.4.p02, neutron data file:
ENDF/B7.0*, thermal scattering data for H in PE• Slightly different results than G4NDL3.14• Uncorrected bug found by A. Garcia (CIEMAT)
• MCNPX version 26.d, neuntron data file ENDF/B6.1
• PE density = 0.95g/cm3 (measured)• 3He active volume inside a vacuum mother volume
* Mendoza et al. (CIEMAT), http://www-nds.iaea.org/geant4/
• 3He active volume inside a vacuum mother volume but no additional materials
Fact: efficiency does not scale linearly with volume or pressure
Fact: the efficiency is altered significantly
3H tracks
n-captures mainly on outer shells
Some facts:
altered significantly by the proximity of other tubes both through removal of neutrons and decrease in moderation
Fact: large efficiency is in conflict with flat efficiency. Here we concentrate in large efficiency.
1st approach: an automatic procedure to optimize the the distance between tubes in order to maximize efficiency
Example for 100 UPC tubes: optimal spacing about 5mm
However due to geometrical constraints and the different tube dimensions it was decided to take a
2nd approach: systematic variations based on educated guesses
What maximum efficiencies should one expect?
UPC
ORNLl
UPC+ORNLl
UPC: 39GSI: 10ORNLs: 16ORNLl: 54RIKEN: 26Eff(0.5MeV)=81.5%Eff(2.5MeV)=67.3%Ratio=0.83
UPC: 42
Two reasonable configurations without CLOVERS:
R(cm): 10.5, 14.0, 17.5, 22.5, 28.5Ndet: 20, 26, 32, 24, 30
R(hole): 8cm
UPC: 42GSI: 10ORNLs: 16ORNLl: 56RIKEN: 26JINR: 3Eff(0.5MeV)=84.4%Eff(2.5MeV)=73.0%Ratio=0.86
Increasing PE from 90cm x 90cm x 90cm to 90cm x 90cm x 140cm does not change significantly the efficiency
R(cm): 8.0, 11.5, 15.0, 20.0, 26.0Ndet: 20, 28, 36, 24, 32
R(hole): 5.5cm
UPC: 42GSI: 10ORNLs: 16ORNLl: 58RIKEN: 24JINR: 20Eff(0.5MeV)=74.5%Eff(2.5MeV)=62.5%Ratio=0.84
PE: 90cm x 90cm x 90cm
A reasonable configuration with 2 CLOVERS:
PE: 90cm x 90cm x 90cm
2 EXOGAM1 Cloversγ-effic. @1MeV = 3%
UPC: 42GSI: 10ORNLs: 16ORNLl: 48RIKEN: 24Eff(0.5MeV)=71.7%Eff(2.5MeV)=61.3%Ratio=0.85
Another configuration with 2 CLOVERS:
UPC: 42GSI: 10ORNLs: 16ORNLl: 56RIKEN: 24JINR: 20Eff(0.5MeV)=75.6%Eff(2.5MeV)=66.5%Ratio=0.88
PE: 90cm x 90cm x (70+45)cm
Another configuration with 2 CLOVERS:
PE: 90cm x 90cm x (70+45)cm
• AIDA is designed to fit a PE block of up to 45-50cm half-length
• Possible problem: location of cables/length of cables
A configuration with 4 CLOVERS:
UPC: 40GSI: 8ORNLs: 16ORNLl: 58RIKEN: 24JINR: 20Eff(0.5MeV)=58.3%Eff(2.5MeV)=51.9%Ratio=0.89
Evolution of the efficiency with energy:
Log-E scale Lin-E scale
(incomplete)
The effect of an extended source is marginal:• Comparing a point source with a 8cm x 8cm x 8cm
source:81.5% -> 81.7% @ 0.5MeV67.3% -> 67.5% @ 2.5MeV
Up to 8 DSSSDs8cmx8cm∆z=1cm
AIDA
NOTE: it is not clear how the inclusion of ancillary detectors (AIDA, CLOVERS) affect the reliability of MC predictions.• Experimentally SIMBA decreased efficiency by 3% for
252Cf
Simulations performed with MCNPX gave very similar results:• For example, G4: 81.3%/68.0%, MCNPX: 81.2%/66.9%
How reliable are MC simulations?BELEN-20a Efficiency
Isotope
Mean
E Exper. MCNPX G4 G4 (bug)
94Rb 437 0.302(8) 0.298 0.300 0.319
95Rb 525 0.301(16) 0.296 0.298 0.317
BELEN-20b Inn/out ratio
Isotope Mean E Exper. MCNPX G4 G4 (bug)
88Br 247 3.04(2) 3.27 3.32 3.25
BELEN-20a BELEN-20b
BELEN-30
252Cf
88Br 247 3.04(2) 3.27 3.32 3.25
94Rb 437 2.51(2) 2.66 2.71 2.66
95Rb 525 2.52(3) 2.62 2.63 2.60
137I 625 2.20(2) 2.22 2.24 2.21
252Cf 2200 1.50(1) 1.56 1.57 1.56
BELEN-30 Efficiency Inn/out ratio
Isotope Mean E Exper. MCNPX G4 G4 (bug) Exper. MCNPX G4 G4 (bug)
252Cf 2200 0.351(8) 0.348 0.350 0.363 0.726 0.758 0.764 0.756
BELEN-48: New measurement at PTB (Dillmann/Marta)
Shielding:
BELEN-20b @ JYFL-IGISOL
Beam-off: 0.7 cpsBeam-on: 0.9 cpsMC = 2 cps
MC = 5.7 cps
Simulation with ambient background shape and Φ=5E-3 cm-2s-1Ambient background
Beam induced background: 260 n/s (Secondary) beam
BRIKEN geometry:
Beam induced background:
BELEN-30 @ GSI-FRS
Cou
nts
1.5 n/s
On-spill
Off-spill
1s + 2s
BELEN
Forward Neutron shield
(Secondary) beam induced background depends on settings and devicesContribution to beta-n correlations:250 cps � 0.12 counts in 500 µsmoderation time � equival. to
Should be reduced by passive shielding and active vetoing
Results from JFYL 2010 BELEN-20b experiment:
Small CloverDistance 5.5cm:Effic(200keV)=4.5%Effic(1MeV)=1.4%
Sensitivity of the setup to ββββnγγγγ branches
n-effic. = 50%β-effic. = 24%
0.3%
β-effic. = 24%γ-effic. :
Effective rate=310 ppsTmeas= 3.3h
Iγ(213KeV)=0.82% I (432keV)=1.13%
Iγγγγ !?
Pn=10.2%
γIγ(432keV)=1.13%Iγ(986keV)=0.54%
Background subtracted
213432 986?
Nβn(213KeV)=30 Nβn(432keV)=17Nβn(986keV)=?
(expec. 7)
836X
X
Effective rate=110 ppsTmeas= 2.2hIγ(836keV)=2.83%Nβn= 17 counts
Effective rate=435 ppsTmeas= 4.2h
Iγγγγ !?
Pn=8.7%
Pn=6.4%
532
Tmeas= 4.2hIγ(532keV)=0.28%Nβn=10 counts
At RIKEN:β-effic=50%n-effic=70%γ-effic=5%
βnγ-effic=1.75%
Counts=implant-rate x time x γ-branch x βnγ-efficiency
For 1 pps in 1 day we would collect 15 counts for a 1% γ-branch
Conclusions:• Without CLOVERS:
• Efficiencies (in the flat region): 80-85%• Ratio (2.5MeV/0.5MeV ): 0.83-0.86
• With 2 CLOVERS:• Efficiencies of the order of 70-75% • Ratio: 0.84-0.88
• With 4 CLOVERS:• With 4 CLOVERS:• Efficiencies: 58% • Ratio: 0.89
UPC: 42GSI: 10RIKEN: 26JINR: 20Eff(0.5MeV)=73.4%Eff(2.5MeV)=56.0%Ratio=0.76
PE: 90cm x 90cm x 90cm
Other possibilities:UPC: 42GSI: 10ORNLs: 16ORNLl: 56RIKEN: 24Eff(0.5MeV)=75.3%Eff(2.5MeV)=64.9%Ratio=0.86
CurrentCurrent status of BRIKEN, status of BRIKEN, what’swhat’s new?new?
Effi
cien
cy (
%)
500 keV2.5 MeV
BRIKEN-Detector: Efficiency for (ββββ,n), (ββββ,2n) and (ββββ,3n)
BRIKEN: an excellent place to measure multiple neutron emitters!
Effi
cien
cy (
%)
1 n 2 n 3 n
CurrentCurrent status of BRIKEN, status of BRIKEN, what’swhat’s new?new?
BRIKEN: a high performance also for gamma-neutron correlations!
72% 62%
neutron
γγγγ n-γγγγ
2.8% 2%
BELEN design in progress for RIKEN with AIDA
48 tubes
Optimized for range 100 keV – 5 MeV
Radius 8 cm
BELEN design in progress for RIKEN with AIDA
48 tubes
Optimized for range 100 keV – 1 MeV
Radius 8 cm
BELEN design in progress for RIKEN with AIDA (8cm central hole)
Previous versions New designsConcept Detection System New designs
1 MeV
30
5 MeV
AIDAAIDA
8 cm * 8 cm AIDA compact system
• 12x 8cm x 8cm DSSSDs24x AIDA FEE cards
• 3072 channels
- Design drawings (PDF) availablehttp://www.eng.dl.ac.uk/secure/np-work/AIDA/
Bench test system for individual AIDA cards
Mezzanine:4x 16 channel ASICsCu coverEMI/RFI/light screencooling
FEE:4x 16-bit ADC MUX readout (not visible)8x octal 50MSPS 14-bit ADCsXilinx Virtex 5 FPGAPowerPC 40x CPU core/Linux OS – DAQ
Gbit ethernet, clock, JTAG portsPower
FEE width: 8cmPrototype – air coolingProduction – recirculating coolant
Pulser tests of AIDA Hardware performance
INL < 0.1% ( > 95% FSR )
Tests with pulser demonstrating integral non-linearity and noiseperformance of 20MeV range
0.15mV rms ~ 2.5keV rms Si
All production hardware (ASIC, FEE Mezzanine PCB, FEE PCB) delivered by sub-contractors
Initial conversion e- measurements with AIDA system
• Realistic input loading CD ~ 60pF, IL ~ 60nA• Expect to achieve full design resolution ~12keV FWHMand low energy threshold ~50 keV
GSI Commissioning Test – August 2011
• SIS 250MeV/u 209Bi
• Beam delivery direct to Cave C
• From exit port+ ~1.0m air+ ~2mm Al (degrader)+ ~0.9m air+ 1x MSL type W-1000 DSSSD
cheap alternative to type BB18 …
• Test of response of 20GeV range
• No rejection of lighter, lower energy ions generated by passage ofbeam through exit port/degrader
Data Acquisition System
Hardware availability and costs
Hardware Institution Availabilityin 2014/15?
Shipment Co. Cost(Euros)
3He tubes ORNL Yes3He tubes UPC Yes TECNISAMPLE 20003He tubes JINR Yes3He tubes RIKEN Yes N.A. N.A.3He tubes GSI Yes
PE-Matrix GSI/Triumf Yes 2600
AIDA Edinburgh, Liverpool, Daresbury, etc
Yes
DDAS IFIC Yes TNT 4000
LoIs for Experiments @ BRIKEN
Presenter Topic Nuclei
S.Nishimura 2nd r-processpeak
A=110-125112Zr-129Pd
F. Montes 2nd r-processpeak
139Sb, 140Sn
C.Domingo Rare EarthPeak
151La-173Tb
M.MartaI.Dillmann
Multiple n’s,2n, 3n
78Ni (76Co-81Cu)132Sn(134Sn-133Cd)
K.Rykaczewski Multiple n 78Ni-81GaK.Rykaczewski Multiple n 78Ni-81Ga81Cu-85Se82Cu-86Se84Zn-87Se
134,135In
R.Griwacz Multiple n 48Cl-64V67Cr-69Fe74Co-77Zn76Co-79Zn
G. Lorusso 2nd r-process 129Ag-142Te133-134CdPd-chainIn-chain
Presenter Topic Nuclei
A. Algora Nucl. shapes 106Zr-114Mo
B. Rubio TAS+Neutrons N>82130Ag-138Sb
A. Estrade MBRIKEN Several
J.L. Tain B-strengthfunction
85Ge-97Br
function
D.Cano-Ott Reactortechnologies
Ge86-As86Rb-96-Rb100, Y98m, Cd131, Sb137