Development of quick and remote analysis for severe accident reactor, 4; Application of laser-induced breakdown spectroscopy to zirconium in aqueous solution

過酷事故炉を対象とした迅速遠隔分析技術開発,4; レーザー誘起ブレークダウン分光法のジルコニウム水溶液への応用

Ruas, A.; 大場 弘則  ; 赤岡 克昭 ; 若井田 育夫  

Ruas, A.; Oba, Hironori; Akaoka, Katsuaki; Wakaida, Ikuo

This work deals with LIBS development, as a rapid, easy and remote analysis technique for monitoring the contaminated aqueous solutions in decommissioning of the Fukushima Daiichi Nuclear Power Station (F1-NPS). A new setup using liquid jet was realized for element determination in aqueous solutions. Preliminary results on zirconium determination are shown. The system permits zirconium semi-quantitative determination down to reasonable concentrations (around 20 mg/L).