2018 Fall Meeting

Presentation information

Oral presentation

III. Fission Energy Engineering » 301-1 Reactor Physics, Utilization of Nuclear Data, Criticality Safety

[1M14-19] Criticality Safety 2

Wed. Sep 5, 2018 4:25 PM - 6:00 PM Room M (E11 -E Building)

Chair:Go Chiba(Hokkaido Univ.)

5:10 PM - 5:25 PM

[1M17] Criticality control technique development for Fukushima Daiichi fuel debris

(48)Effect of insoluble neutron absorbers on pH of a solution and hydrogen generation

*Ryo Ishibashi1,3, Kazuya Ishii1,3, Toshiyuki Fujita2,3, Yuta Shindo2,3, Yuuichi Morimoto1,3 (1. Hitachi-GE Nuclear Energy, Ltd., 2. Toshiba Energy Systems & Solutions, Co, 3. International Research Institute for Nuclear Decommissioning)

Keywords:Fukushima-Daiichi NPP SA, Fuel debris, Neutron absorber , Criticality prevention technology, Gamma-ray irradiation

For the purpose of removing fuel debris from the Fukushima-Daiichi Nuclear Power Plants safely and smoothly, a criticality prevention technology using insoluble neutron absorbers is being developed. Evaluation results regarding effect of insoluble neutron absorbers on pH of a solution and hydrogen generation are reported.

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