Applicability of NSRR room/high temperature test results to fuel safety evaluation under power reactor conditions

動力炉条件における燃料安全評価に対するNSRR室温/高温実験結果の適用性

杉山 智之 ; 梅田 幹 ; 宇田川 豊  ; 笹島 栄夫 ; 鈴木 元衛; 更田 豊志

Sugiyama, Tomoyuki; Umeda, Miki; Udagawa, Yutaka; Sasajima, Hideo; Suzuki, Motoe; Fuketa, Toyoshi

Pulse irradiation tests of high burnup light water reactor fuels were performed at the Nuclear Safety Research Reactor (NSRR) in order to investigate transient fuel behavior and fuel failure limit under the reactivity-initiated accident (RIA) conditions. This paper presents new data from the NSRR high temperature tests at 250 to 290 C as well as data from the room temperature tests at around 20 C, and discusses the applicability of these data to the fuel safety evaluation under power reactor conditions.