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 visitors NUPECC Bordeaux 27-28/10/06

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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 - PowerPoint PPT Presentation

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Page 1: 7 topics Exotic nuclei  Neutrinos / low level radioactivities  Astroparticles – GLAST

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

Page 2: 7 topics Exotic nuclei  Neutrinos / low level radioactivities  Astroparticles – GLAST

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

Page 3: 7 topics Exotic nuclei  Neutrinos / low level radioactivities  Astroparticles – GLAST

Cross sections measurements (fission or capture) for neutron induced

reactions on highly radiotoxic targets

50 keV < En < 10 MeV

Page 4: 7 topics Exotic nuclei  Neutrinos / low level radioactivities  Astroparticles – GLAST

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

Page 5: 7 topics Exotic nuclei  Neutrinos / low level radioactivities  Astroparticles – GLAST

232Th +n

233Th

22min

233Pa

27d

233U

238U +n

239U

23min

239Np

2d

239Pu

Fertile Fissile

Page 6: 7 topics Exotic nuclei  Neutrinos / low level radioactivities  Astroparticles – GLAST

233Pa + n 234Pa* fission

Page 7: 7 topics Exotic nuclei  Neutrinos / low level radioactivities  Astroparticles – GLAST

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

Page 8: 7 topics Exotic nuclei  Neutrinos / low level radioactivities  Astroparticles – GLAST

Our resultsOur results

Neutron energy (MeV) Neutron energy (MeV)

(n,f)

Fission cross sections for 230Th+n and 231Pa+n

Page 9: 7 topics Exotic nuclei  Neutrinos / low level radioactivities  Astroparticles – GLAST
Page 10: 7 topics Exotic nuclei  Neutrinos / low level radioactivities  Astroparticles – GLAST

Transmutation of minor actinides

Page 11: 7 topics Exotic nuclei  Neutrinos / low level radioactivities  Astroparticles – GLAST

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

Page 12: 7 topics Exotic nuclei  Neutrinos / low level radioactivities  Astroparticles – GLAST

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)

Page 13: 7 topics Exotic nuclei  Neutrinos / low level radioactivities  Astroparticles – GLAST

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