Comparative study of plutonium and minor actinide transmutation scenario

Nishihara, Kenji  ; Iwamura, Takamichi*; Akie, Hiroshi  ; Nakano, Yoshihiro ; Van Rooijen, W.*; Shimazu, Yoichiro*

The present study focuses on transmutation of Pu and minor actinide in Japanese case without utilizing Pu as resource. Pu can be transmuted by two groups of technology: conventional ones without reprocessing of spent fuel from transmuter and advanced ones with reprocessing. Necessary number of transmuters, inventory reduction of actinide and impact on repository are revealed by nuclear material balance analysis. As a whole advanced technology performs better in transmutation efficiency, although required number of transmuters is larger.