LLFP Transmutation Performance in Sodium, Pb-Bi and He Cooled Fast Reactors, II

Takaki, Naoyuki; Naganuma, Masayuki  ; Mizuno, Tomoyasu

The LLFP transmutation performances of Sodium, Pb-Bi and He cooled fast reactors examined in the feasibility study have been investigated from view points of nuclear, thermal and material characteristics. Key design restrictions in order to assure the integrity of LLFP assembly are caused by the internal pressure of Iodine pins and the permeation of hydrogen of moderator Zr-H. These fast reactors might be feasible to cope with LLFP transmutation without any severe design modification.