Experimental approach to measure thick target neutron yields induced by heavy ions for shielding

N.D. Trinh (1) , M. Fadil (1) , M. Lewitowicz (1) , C. Brouillard (1) , T. Clerc (1) , S. Damoy (1) , V. Desmezières (1) , E. Dessay (1) , M. Dupuis (1) , G.F. Grinyer (1) , J. Grinyer (1) , B. Jacquot (1) , X. Ledoux (1) , A. Madeline (1) , N. Menard (1) , M. Michel (1) , V. Morel (1) , F. Porée (1) , B. Rannou (1) , A. Savalle (1)

1 GANIL - Grand Accélérateur National d'Ions Lourds

Double differential (angular and energy) neutron distributions were measured using an activation foil technique. Reactions were induced by impinging two low-energy heavy-ion beams accelerated with the GANIL CSS1 cyclotron: (36S (12 MeV/u) and 208Pb (6.25 MeV/u)) onto thick natCu targets. Results have been compared to Monte-Carlo calculations from two codes (PHITS and FLUKA) for the purpose of benchmarking radiation protection and shielding requirements. This comparison suggests a disagreement between calculations and experiment, particularly for high-energy neutrons.

Domaines: Physique des accélérateurs [physics.acc-ph]

N.D. Trinh, M. Fadil, M. Lewitowicz, C. Brouillard, T. Clerc, et al.. Experimental approach to measure thick target neutron yields induced by heavy ions for shielding. 13th International Conference on Radiation Shielding (ICRS-13) & 19th Topical Meeting of the Radiation Protection & Shielding Division of the American Nuclear Society -2016 (RPSD-2016), Oct 2016, Paris, France. pp.01018, ⟨10.1051/epjconf/201715301018⟩. ⟨hal-01645295⟩