Fundamental research on FP chemistry; Boron effects on cesium and iodine chemistry

Miwa, Shuhei  ; Nakajima, Kunihisa  ; Miyahara, Naoya; Nishioka, Shunichiro; Suzuki, Chikashi ; Suzuki, Eriko   ; Horiguchi, Naoki   ; Imoto, Jumpei ; Liu, J.  ; Miradji, F.; Afiqa, B. M. ; Ioka, Ikuo  ; Goullo, M.*; Osaka, Masahiko  

We have been conducting the fundamental study on fission product (FP) chemistry under severe accident (SA) conditions. The objective is to construct the FP chemistry database and to improve FP chemistry model for the improvement of source term evaluation technology. We have established the technical basis, such as experimental set-up and analysis tool, for the evaluation of FP chemistry in SA conditions. Fundamental knowledges on the effects of boron on the cesium and iodine chemistry were also obtained.