Approach to establishment for systematic safety assessment methodology; Analysis of radionuclides flux out of engineered barrier taking into account linkage of models and parameters

Mukai, Masayuki ; Kataoka, Masaharu; Takeda, Seiji ; Maeda, Toshikatsu; Iida, Yoshihisa ; Watanabe, Masatoshi; Sawaguchi, Takuma ; Yamaguchi, Tetsuji ; Tanaka, Tadao 

Systematic safety assessment should be carried out taking into account linkage among "Condition Setting", "Safety Function", and "Radionuclide Migration". We have summarized input-output relation among a calculation code coupled mass transport and chemical reaction, models to evaluate performance of each of engineered barriers, and a safety assessment code through the viewpoint of the linkage. As the first step to establish a systematic safety assessment methodology, how to specifically link those codes and models and how to apply a linked calculation process to practical cases of geological disposal conditions have been discussed.