Concept of a small fast breeder reactor system capable of transmuting MA and LLFP

• Numerical studies were performed for breeding of fissile and transmutation MAs LLFPs in a small fast reactor system. An innovative Duplex type MA-containing fuel was used MA transmutation. LLFP subassemblies with moderator placed into the radial blanket. A ratio greater than 1 achieved support (SR) 2 both The issues nuclear power systems are effective use uranium resources reduction radioactive wastes. Important wastes minor actinides (MA : 237 Np, 241 Am, 243 etc.) long-lived fission products (LLFP 129 I, 99 Tc, 79 Se, etc.). purpose this study to construct system that simultaneously achieves materials using reactors. Transmutation by loading core region LLFP-containing first layer Breeding entire combining two reactors: one other breeding. As result, it clarified system, approximately 1.03 obtained, ratios (SRs) or more LLFPs.