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垣内 一雄; 宇田川 豊; 天谷 政樹
Annals of Nuclear Energy, 155, p.108171_1 - 108171_11, 2021/06
被引用回数:1 パーセンタイル:15.7(Nuclear Science & Technology)In order to investigate fission gas release behavior of high-burnup mixed-oxide (MOX) fuel pellet for LWR under reactivity-initiated accident (RIA), the tests called BZ-3 and BZ-4 were conducted at the Nuclear Safety Research Reactor (NSRR) in Japan Atomic Energy Agency (JAEA). Electron probe microanalysis and rod-puncture tests were performed on the fuel pellets before and after pulse irradiation tests, and from the comparison between the puncture test results and the results evaluated from EPMA, it was suggested that fission gas release from not only the Pu-spot but also the Pu-spot-excluded region.
遠藤 慎也; 本岡 隆文; 上原 寛之; 小畑 裕希; 川又 裕; 上野 文義
no journal, ,
東京電力福島第一原子力発電所4号機の使用済燃料プールから取り出された未照射燃料集合体より採取した3種類の部材について、原子力機構において詳細検査を実施した。本報では、光学顕微鏡及びSEM/EPMAによる部材の断面観察の結果について報告する。