7 topics Exotic nuclei Neutrinos low level radioactivities

Ø 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 Ø Platform AIFIRA Ø Technogical transfer department Ø 37 permanent researchers 40 permanent engineers and technicians 20 Ph. Ds, post-docs and visitors NUPECC Bordeaux 27 -28/10/06

GLAST Gamma-ray Large Area Space Telescope 10 Me. V-300 Ge. V • A collaboration between the USA, Italy, France, Japan, and Sweden. • Launch: 7 th october 2007 (NASA) • Current activities at the CENBG: Calorimeter calibrations Simulation improvements Developing analysis tools Pulsar ephemeredes database

Cross sections measurements (fission or capture) for neutron induced reactions on highly radiotoxic targets 50 ke. V < En < 10 Me. V

ü Neutron induced reaction fission A+n (A+1)* gamma Compound Nucleus xn (x = 1, 2) measured fission (En) = CN * Pfission(En) (A+1)* has to be produced in the same state as in the neutron induced reaction same E*, same quantum numbers Iπ ü If A not available B+X (A+1)* + Y fission (En) = CN calculated * Pfission(En) measured

232 Th +n 233 Th b 22 min 233 Pa b 27 d Fertile 238 U +n 239 U b 23 min 239 Np b 2 d 233 U Fissile 239 Pu

233 Pa + n 234 Pa* fission

231 Pa +n 33000 y fission 109 bq/mg 232 Pa 233 Pa 1. 3 d 27 d 3 He, d 3 He , t 230 Th 74000 y +n 231 Th 25 h fission 3 He, a 232 Th 1. 4 1010 y 23 + h 2 T fission 234 Pa +n 6. 7 h , p e 3 H p+ 23 4 P * a fi n o i ss

Fission cross sections for 230 Th+n and 231 Pa+n (n, f) Our results Neutron energy (Me. V)

Transmutation of minor actinides

Transfer reactions on minor actinides 3 106 Bq/mg fission 242 Cm +n 162. 9 d 243 Cm 244 Cm 29. 1 y 18. 1 y 3 He , t 241 Am 432 y +n 242 Am 16 h 141 y fission 3 He, a 3 He, d 243 Am 7370 y 8 103 Bq/mg +n fission 245 Cm 8500 y , p e 3 H Argonne ANL

Fission of minor actinides (transfer reaction on 241 Am) 108 bq/mg fission 240 Cm +n 27 d 241 Cm 242 Cm 32. 8 d 162. 8 d 3 He, d 3 He , t 239 Am 11. 9 h +n 240 Am 50. 8 h fission 3 He, a 241 Am 432 y fission +n , p e 3 H 243 Cm 28. 5 y

Morning Programme • Exotic nuclei (B. Blank) • Nuclear excitations via lasers (F. Hannachi) • Neutrinos (F. Piquemal) • The AIFIRA platform (Ph. Moretto) Coffee break 11 h 00 -11 h 15 NUPECC session 13 h 00 Buffet