Fast reactor core design considerations from proliferation resistance aspects

Kawashima, Katsuyuki; Ogawa, Takashi; Oki, Shigeo ; Okubo, Tsutomu; Mizuno, Tomoyasu

Sodium-cooled fast reactor core design considerations are made to improve the proliferation resistance by focusing on the plutonium generated in the UO blanket in the frame of the Fast Reactor Cycle Technology Development (FaCT) project. The appropriate design and treatments of the UO blanket help to reduce the intrinsic proliferation potentials. Based on the 1500 MWe FaCT reference core, the three different cores (radial blanket-free core, the core with the low-enriched MOX fuel, and the core with MA-doped UO fuel) are configured to meet the provisional proliferation resistance criteria as well as the core performance targets.