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SWAT4を用いたBWR燃料の照射後試験解析

Analysis of PIE data of BWR fuel using SWAT4

菊地 丈夫; 多田 健一; 須山 賢也

Kikuchi, Takeo; Tada, Kenichi; Suyama, Kenya

原子力機構が開発している燃焼計算コードSWAT4の計算精度を検証するため、旧原研が実施したBWR燃料を対象とした照射後試験の測定結果とSWAT4の解析結果を比較した。その結果、主要な重核種であるUやPuではC/Eの平均値が1.0に近く、FP核種では平均値や標準偏差が重核種に比べてやや大きくなることを確認した。

To estimate the prediction accuracy of the integrated burn up analysis code system SWAT4, we compared the calculation results of SWAT4 and the PIE data of the BWR fuel which was measured by JAERI in 1990s. Comparison results are indicated that the C/E value of major heavy nuclei, e.g., U and Pu, is approximately 1.0. The calculation results are also indicated that some fission products, e.g., Sm, have the larger difference.

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