[1H10-12] Critical Experiment Analysis

[1H11] R&D to improve accuracy of nuclear prediction for HTGR

(6)Study on new critical experiment with high fuel enrichment

*Tadafumi Sano¹, Atsushi Sakon¹, Yoshiyuki Takahashi², Yuuji Fukaya³, Nozomu Fujimoto⁴, Kengo Hashimoto¹ (1. Kindai University, 2. Kyoto University, 3. JAEA, 4. Kyushu University)

Keywords:KUCA, Graphite core, Critical experiment, enrichment

In order to improve the prediction accuracy of HTGRs, a graphite core simulating HTGRs has been constructed in the KUCA solid-state moderator system and critical experiments have been conducted. In this year, we plan to conduct experiments with different enrichment levels in the test region to obtain critical experimental data for applying the generalized bias factor method to real reactor systems, and we will report the results of the preliminary analysis.