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酸化物燃料中におけるPu及びAmの拡散挙動

Diffusion behavior of Pu and Am in oxide fuels

佐藤 勇; 田中 康介 ; 田中 健哉; 有馬 立身*; 出光 一哉*

Sato, Isamu; Tanaka, Kosuke; Tanaka, Kenya; Arima, Tatsumi*; Idemitsu, Kazuya*

Am含有MOX燃料ペレットとUO$$_{2}$$燃料ペレットを接触・加熱し、両燃料間での拡散現象を誘発させ、Pu及びAmの濃度分布をEPMAにて分析した。分析結果から燃料挙動解析上重要な拡散係数を評価した。

Both an Am containing MOX fuel and a UO$$_{2}$$ fuel were contacted and heated, and then the diffusion behavior was observed by EPMA. The diffusion coefficients of Pu and Am as an important property for fuel design were evaluated from these result.

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