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Hirota, Koichi; Hakoda, Teruyuki; Arai, Hidehiko; Hashimoto, Shoji
Radiation Physics and Chemistry, 57(1), p.63 - 73, 2000/01
Times Cited Count：36 Percentile：88.35(Chemistry, Physical)no abstracts in English
Hirota, Koichi; Hakoda, Teruyuki; Hashimoto, Shoji
Proc. of RadTech Asia'97, p.816 - 819, 1997/00
no abstracts in English
Amano, Hikaru; Atarashi, Mariko
Int. Workshop Proc., Improvement of Environmental Transfer Models and Parameters, 0, p.136 - 145, 1996/00
no abstracts in English
Doi, Daisuke; Kondo, Toshiki; Kikuchi, Shin; Seino, Hiroshi
no journal, ,
As part of the source term study for sodium-cooled fast reactors, we have focused on the formation behavior of gaseous iodine in the gas phase. In this report, we will present the results of chemical equilibrium calculations based on the Gibbs free energy minimization method with various parameters, such as ambient oxygen concentrations and temperature for the formation behavior of gaseous iodine.
Karasawa, Hidetoshi; Rizaal, M.; Miwa, Shuhei; Kino, Chiaki*
no journal, ,
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 by a gaseous chemical reaction model using the ECUME database in the previous CsI-TeRRa experiment. In this study, we investigated the gas phase chemical reaction model for the CsI-B
O
-TeRRa experiment, which evaluated the influence of B on CsI behavior. In the experiment, the addition of BO increased the production of gaseous iodine by about 10 times. To explain this behavior, we set up a Cs-I-B-H-O reaction mechanism in which HBO generated from BO is reacted with CsI and CsOH to produce gaseous iodine. Calculations of the chemical reaction model using chemical reaction rates in the ECUME database confirmed an increase in gaseous iodine (about 26 times at 1,273 K) due to the addition of BO. The results showed that gaseous iodine was sufficiently produced at high temperatures, indicating the possibility of reproducing the TeRRa experiment by calculating chemical reactions during the transition of decreasing temperature.
