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7 topics Exotic nuclei Neutrinos / low level radioactivities Astroparticles – GLAST PowerPoint PPT Presentation


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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

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

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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 visitors

NUPECC Bordeaux 27-28/10/06


7 topics exotic nuclei neutrinos low level radioactivities astroparticles glast

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


7 topics exotic nuclei neutrinos low level radioactivities astroparticles glast

Cross sections measurements (fission or capture) for neutron induced reactions on highly radiotoxic targets50 keV < En < 10 MeV


7 topics exotic nuclei neutrinos low level radioactivities astroparticles glast

  • Neutron induced reaction

fission

gamma

xn (x = 1,2)

A+n  (A+1)*

Compound Nucleus

measured

(A+1)* has to be produced in the same state

as in the neutron induced reaction

same E*, same quantum numbers Iπ

  • If A not available

B+X  (A+1)* + Y

measured

calculated

fission (En) = CN * Pfission(En)

fission (En) = CN * Pfission(En)


7 topics exotic nuclei neutrinos low level radioactivities astroparticles glast

b-

b-

b-

b-

239U

233Th

233Pa

239Np

23min

2d

27d

22min

Cycle Th-U

233U

232Th +n

Fissile

Fertile

Cycle U-Pu

239Pu

238U +n


7 topics exotic nuclei neutrinos low level radioactivities astroparticles glast

233Pa + n  234Pa*  fission


7 topics exotic nuclei neutrinos low level radioactivities astroparticles glast

109 bq/mg

fission

fission

231Pa

33000 y

+ n

232Pa

1.3 d

233Pa

27 d

+ n

234Pa

6.7 h

3He,d

3He,p

3He,t

232Th

1.4 1010 y

230Th

74000 y

+ n

231Th

25 h

3He,a

232Th + 3He  p + 234Pa* fission

fission


7 topics exotic nuclei neutrinos low level radioactivities astroparticles glast

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

(n,f)

Our results

Our results

Neutron energy (MeV)

Neutron energy (MeV)


Transmutation of minor actinides

Transmutation of minor actinides


Transfer reactions on minor actinides

3 106 Bq/mg

fission

fission

242Cm

162.9 d

+ n

243Cm

29.1 y

244Cm

18.1 y

245Cm

8500 y

+ n

3He,d

3He,p

3He,t

3He,a

243Am

7370 y

241Am

432 y

+ n

242Am

16 h

Argonne

ANL

141 y

8 103 Bq/mg

fission

Transfer reactions on minor actinides


7 topics exotic nuclei neutrinos low level radioactivities astroparticles glast

108 bq/mg

fission

fission

240Cm

27 d

+ n

241Cm

32.8d

242Cm

162.8 d

+ n

243Cm

28.5 y

3He,d

3He,p

3He,t

241Am

432 y

239Am

11.9h

+ n

240Am

50.8 h

3He,a

fission

Fission of minor actinides (transfer reaction on 241Am)


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


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