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Hidaka, Akihide; Yokoyama, Hiroya
Proceedings of Symposium on Water Chemistry and Corrosion in Nuclear Power Plants in Asia 2017 (AWC 2017) (USB Flash Drive), p.29 - 42, 2017/09
no abstracts in English
Hidaka, Akihide; Yokoyama, Hiroya
Journal of Nuclear Science and Technology, 54(8), p.819 - 829, 2017/08
Times Cited Count:13 Percentile:73.88(Nuclear Science & Technology)To clarify what happened during the Fukushima accident, the phenomena within RPV and the discussion of ties with the environmental monitoring are very important. However, the previous study has not necessarily advanced until the present that passed almost six years from the accident. The present study investigated I and
Cs release behaviors during the late phase of the accident based on
I/
Cs ratio of the source terms that were recently evaluated backward by WSPEEDI code based on environmental monitoring data. The
I release from the contaminated water in the basement of 1F2 and 1F3 reactor buildings was evaluated to be about 10% of
I source term. The increase in
Cs release from March 21 to 23 and from March 30 to 31 could be explained by the release of CsBO
which is formed as a result of chemical reactions of Cs with B
C due to re-ascension of the core temperature caused by slight shortage of the core cooling water.
Hidaka, Akihide; Yokoyama, Hiroya
Journal of Nuclear Science and Technology, 54(8), P. i, 2017/08
Times Cited Count:0 Percentile:0.00(Nuclear Science & Technology)no abstracts in English