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Fuel safety research at JAEA

JAEAにおける燃料安全研究

天谷 政樹  

Amaya, Masaki

原子力機構における燃料安全研究の目的は、軽水炉燃料に関して現在の規制基準や安全裕度の妥当性を評価すること、新材料からなる被覆管やペレットを使用した改良型燃料に係る規制のためのデータを提供すること、及び規制に活用可能な計算コードを提供することである。本発表では、最近の反応度事故(RIA)模擬試験、冷却材喪失事故(LOCA)模擬試験の進捗に加え、原子力機構における燃料安全研究の概況を報告する。

The objectives of the fuel safety research at JAEA are to evaluate the appropriateness of current Japanese regulatory criteria and their safety margins regarding light-water-reactor fuels, to provide the data for regulation for improved fuels which consist of cladding and fuel pellet with new materials, and to provide fuel behavior analysis codes which are applicable to regulatory activities. In this presentation, the outline of fuel safety research activities at JAEA is presented in addition to the progress in reactivity-initiated accident (RIA) and loss-of-coolant accident (LOCA) experiments.

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