[2O07-10] FP Behavior, FCVS

[2O08] Evaluation of FP Behavior Models in SAs

5. Evaluation of a chemical reaction model for Cs-I-B-H-O system in SA codes

*Hidetoshi Karasawa¹, Rizaal Muhammad¹, Shuhei Miwa¹, Chiaki Kino² (1. JAEA, 2. IAE)

Keywords:gaseous iodine, boron, chemical reaction, ECUME, SAMPSON

In SA analysis, the importance of chemical reactions related to FP behavior has been pointed out. For this reason, the amount of gaseous iodine produced was evaluated using a chemical reaction model in the previous TeRRa experiment in which the temperature dependence of CsI behavior was evaluated. In this study, we examined a chemical reaction model for TeRRa experiments that evaluated the influence of B on CsI behavior. In the TeRRa experiment, the amount of gaseous iodine increased approximately 10 times by adding boron. The gas phase chemical reaction mechanism of the Cs-I-B-H-O system was investigated.