7 topics Exotic nuclei Neutrinos / low level radioactivities Astroparticles – GLAST
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Transcript of 7 topics Exotic nuclei Neutrinos / low level radioactivities Astroparticles – GLAST
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7 topics• Exotic nuclei
• Neutrinos / low level radioactivities• Astroparticles – GLAST• Nuclear excitations via lasers• Interface physics-biology• Nuclear waste and energy for the futur• Theory
Platform AIFIRA
Technogical transfer department
37 permanent researchers
40 permanent engineers and technicians
20 PhDs, post-docs and visitorsNUPECC Bordeaux 27-28/10/06
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Gamma-ray Large Area Space Telescope 10 MeV-300 GeV
• A collaboration between the USA, Italy, France, Japan, and Sweden.
• Launch: 7th october 2007 (NASA)
• Current activities at the CENBG:Calorimeter calibrations
Simulation improvements Developing analysis tools
Pulsar ephemeredes database
GLAST
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Cross sections measurements (fission or capture) for neutron induced
reactions on highly radiotoxic targets
50 keV < En < 10 MeV
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Neutron induced reaction
A+n (A+1)*Compound Nucleus
fissiongammaxn (x = 1,2)
fission (En) = CN * Pfission(En)
If A not availableB+X (A+1)* + Y
(A+1)* has to be produced in the same state as in the neutron induced reaction same E*, same quantum numbers Iπ
measured
fission (En) = CN * Pfission(En)measured
calculated
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232Th +n
233Th
22min
233Pa
27d
233U
238U +n
239U
23min
239Np
2d
239Pu
Fertile Fissile
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233Pa + n 234Pa* fission
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109 bq/g
234Pa6.7 h
233Pa27 d
+ n
fission
3He,t
3He,d
3He,231Th25 h
232Pa1.3 d
fission
fission
231Pa33000 y
230Th74000 y
+ n
+ n 232Th
1.4 1010 y
3He,
p
232 Th + 3 He p + 2
34 Pa*
fissio
n
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Our resultsOur results
Neutron energy (MeV) Neutron energy (MeV)
(n,f)
Fission cross sections for 230Th+n and 231Pa+n
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Transmutation of minor actinides
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Transfer reactions on minor actinides
Argonne ANL
3He,
p
3He,t3He,d
3He,
8 103 Bq/g
243Am7370 y
243Cm29.1 y
242Cm
162.9 d
242Am16 h
241Am432 y
245Cm
8500 y
244Cm
18.1 y
+ n
fission3 106 Bq/gfission
+ n
+ n
fission
141 y
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3He,
p
241Cm32.8d
240Cm
27 d
241Am432 y
240Am50.8 h
239Am11.9h
243Cm
28.5 y
242Cm
162.8 d
108 bq/g
+ n
fissionfission
+ n
3He,t
3He,d
3He,+ n
fission
Fission of minor actinides (transfer reaction on 241Am)
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Morning Programme
• Exotic nuclei (B. Blank)
• Nuclear excitations via lasers (F. Hannachi)
• Neutrinos (F. Piquemal)
• The AIFIRA platform (Ph. Moretto)
Coffee break 11h00-11h15
NUPECC session
13h00 Buffet