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Decay heat measurement on aluminum, copper and type 304 stainless steel irradiated by D-T neutrons

Fujio Maekawa, Yujiro Ikeda, Edward T. Cheng1998年Fusion Engineering and DesignIF 1.7出版社

AbstractThe whole-energy absorption spectrometer (WEAS) was developed to measure decay heat of fusion reactor materials, and the first experimental data of decay heat on Al, Cu and SS304 irradiated by D-T neutrons were obtained. The experiment demonstrated the feasibility of decay heat measurement with WEAS. Validity of decay heat calculations with available codes and data libraries was tested by comparing the calculated results with the measured ones. Some problems were found in the tested codes and data libraries for the decay heat calculation although decay γ-ray calculations with these codes and data have been validated with the existing benchmark experiments. Except for these problems, the decay heat calculations predicted the measured decay heat values mostly within ± 15%.

日本語訳

全エネルギー吸収スペクトロメータ(WEAS)は、核融合炉材料の崩壊熱を測定するために開発され、D-T中性子を照射したAl、Cu、SS304の崩壊熱に関する最初の実験データが得られた。この実験により、WEASによる崩壊熱測定の実現可能性が実証された。利用可能なコードとデータライブラリを用いた崩壊熱計算の妥当性は、計算結果と測定結果を比較することによって検証された。既存のベンチマーク実験により、これらのコードとデータを用いた崩壊γ線計算は検証されているものの、崩壊熱計算に関しては、試験したコードとデータライブラリにいくつかの問題が見つかった。これらの問題を除けば、崩壊熱計算は測定された崩壊熱値を概ね±15%以内で予測した。

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