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Determination of Plutonium in High Active Liquid Waste of Reprocessing Plant by Spectrophotometry using Neodymium as an Internal Standard

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駿河谷 直樹; 田口 茂郎; 佐藤 宗一; 雛 哲郎; 檜山 敏明; 北尾 貴彦

Surugaya, Naoki; Taguchi, Shigeo; Sato, Soichi; Hina, Tetsuro; Toshiaki, Hiyama,; Kitao, Takahiko

再処理施設における高放射性廃液中に含まれるPuの濃度を、迅速かつ正確に測定する手法を開発した。本法は、Ndを内標準物質とした吸光光度法を応用したもので、従来の分析法である同位体希釈質量分析法に変わる保障措置のための測定技術としての適用が期待できる。本報告では、測定原理及び実試料を用いた試験の結果について述べる。

A rapid verification technique with conventional spectrophotometer has been developed to achieve on-site safeguards measurements in which neodymium as an internal standard was chosen to determine the plutonium concentration in high radioactive liquid waste.This method will provide the on-site analytical capabilities as it allows rapid and simple analyses at Tokai Reprocessing Plant.

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