Effect of neutron moderator on protected plutonium production in fast breeder reactor blanket

Matsumoto, Koji*; Sagara, Hiroshi*; Han, C. Y.*; Onishi, Takashi; Saito, Masaki*; Yamauchi, Ippei*

Transactions of the American Nuclear Society, 107(1), p.1018 - 1019, 2012/11

Protected plutonium production (P) with a high proliferation-resistance was proposed by increasing the Pu ratio in the total plutonium through minor actinides (MAs) doping into the fresh blanket fuel. Moderator effect on P was evaluated. As a result, the transmutation ratio is larger with the heterogeneous moderator than with the homogeneous one, and the isotopic ratio of Pu was increased.