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革新的分光画像解析による燃料デブリの可視化への挑戦とLIBSによる検証,7; ハイパースペクトルイメージングによるUO$$_2$$-Zr-Fe系不均質模擬燃料デブリの識別

Challenge for screening of nuclear fuel debris by innovative spectral imaging and its verification by LIBS mapping, 7; Hyperspectral imaging for the identification of heterogeneous UO$$_2$$-Zr-Fe simulated fuel debris

坂口 知聡*; 坂本 寛*; 大内 敦*; 牟田 浩明*; Ali, T. R.*; Campbell, A. J.*; Murray, P.*; 岩田 圭弘   

Sakaguchi, Chisato*; Sakamoto, Kan*; Ouchi, Atsushi*; Muta, Hiroaki*; Ali, T. R.*; Campbell, A. J.*; Murray, P.*; Iwata, Yoshihiro

福島第一原子力発電所(1F)炉内物質の遠隔分析手法として、ハイパースペクトルイメージング(HSI)とレーザー誘起ブレークダウン分光(LIBS)を組み合わせることを提案している。巨視的に不均質なUO$$_2$$-Zr-Fe系試料に対するHSIの適用性を検証し、一部に誤分類はあるが、概ね良好な分類・識別が可能なことを確認した。

We are proposing a combination of hyperspectral imaging (HSI) and laser-induced breakdown spectroscopy (LIBS) as a remote analysis method for materials inside the reactors of the Fukushima Daiichi Nuclear Power Plant (1F). The applicability of HSI to macroscopically heterogeneous UO$$_2$$-Zr-Fe samples was verified, and although there were some misclassifications, it was confirmed that good classification and identification were generally possible.

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