2023 Annual Meeting

Presentation information

Oral presentation

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

[3K10-13] Critical Experiment Facility

Wed. Mar 15, 2023 2:45 PM - 3:50 PM Room K (13 Bildg.2F 1322)

Chair:Rei Kimura(TOSHIBA ESS)

3:30 PM - 3:45 PM

[3K13] Modification of STACY for study of criticality characteristics of fuel debris

(11)Design of experimental core with concrete rods

*Shouhei Araki1, Satoshi Gunji1, Arakaki Yu1, Tomoki Yoshikawa1, Kazuhiko Izawa1, Kenya Suyama1 (1. Japan Atomic Energy Agency)

Keywords:Fukushima Dai-ichi NPP, modified STACY, Critical Experiment, Fuel Debris, concrete

In order to study the criticality characteristics of fuel debris, experiments with concrete rods are designed in the modified STACY. We produced some concrete rods, which consist of an Al alloy cladding tube and concrete pellets, by way of trial, and obtained properties such as compositions and density of them. In this study, reactivity worth was estimated based on the concrete rod properties.