2017 Annual Meeting

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Oral presentation

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

[2F09-12] Analysis Method Development and V&V 2

Tue. Mar 28, 2017 2:45 PM - 3:50 PM Room F (16-206 Building No.16)

Chair: Tadafumi Sano (Kyoto Univ.)

3:00 PM - 3:15 PM

[2F10] Estimation technique of Cs retention fraction in fuel debris

*Hiroshi Sagara1, Kazuki Nakahara1, Chi Young Han1 (1. Tokyo Institute of Technology)

Keywords:Cs retention fraction, Fuel debris, passive gamma measurement, Validation by experiments, Burnup estimation

A principle of new technique to estimate the Cs retention fraction in the damaged irradiated nuclear such as fuel debris is proposed and examined by sensitivity analysis of the FP inventory in conventional BWR irradiated fuel numerically, and validated by comparing the past experimental data of fuel debris of TMI-2 and Chernobyl-4 based on gamma spectrometry.