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Feasibility study of fissile mass detection in 870 L radioactive waste drums using delayed gamma rays from neutron-induced fission

R. de Stefano 1 C. Carasco 1, * B. Pérot 1 E. Simon 1 T. Nicol 1, 2 E. Mauerhofer 3
* Corresponding author
1 CEA-DES (ex-DEN) - CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire)
2 SPRC - Service de Physique des Réacteurs et du Cycle
3 JCNS - Jülich Centre for Neutron Science
Abstract : The measurement of delayed gamma rays following neutron-induced fission is simulated with MCNP 6.1 to investigate the feasibility of fissile material detection in long-lived, medium activity radioactive waste in 870 L drums. The signal from homogeneously distributed fissile material in the drum is several hundred counts in the main delayed gamma peaks of interest. In a peripheral position or in the drum center, the signal is however too small to allow for a reliable measurement
Keywords : Delayed gamma neutron induced fission long-lived medium activity waste 870 L radioactive waste drum MCNP
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Submitted on : Friday, May 15, 2020 - 2:47:47 PM
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R. de Stefano, C. Carasco, B. Pérot, E. Simon, T. Nicol, et al.. Feasibility study of fissile mass detection in 870 L radioactive waste drums using delayed gamma rays from neutron-induced fission. Journal of Radioanalytical and Nuclear Chemistry, Springer Verlag, 2019, 322, pp.1185-1194. ⟨10.1007/s10967-019-06731-2⟩. ⟨cea-02591079⟩

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