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Cherenkov counting of 90Sr and 90Y in bark and leaf samples collected around Fukushima Daiichi Nuclear Power Plant

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Title: Cherenkov counting of 90Sr and 90Y in bark and leaf samples collected around Fukushima Daiichi Nuclear Power Plant
Authors: Kubota, Takumi Browse this author
Shibahara, Yuji Browse this author
Fukutani, Satoshi Browse this author
Fujii, Toshiyuki Browse this author
Ohta, Tomoko Browse this author →KAKEN DB
Kowatari, Munehiko Browse this author
Mizuno, Satoshi Browse this author
Takamiya, Koichi Browse this author
Yamana, Hajimu Browse this author
Keywords: strontium-90
cesium-137
Cherenkov counting
Fukushima nuclear accident
vegetation samples
Issue Date: Jan-2015
Journal Title: Journal of Radioanalytical and Nuclear Chemistry
Volume: 303
Issue: 1
Start Page: 39
End Page: 46
Publisher DOI: 10.1007/s10967-014-3348-y
Abstract: The radioactivity of 90Sr and 137Cs in environmental samples, bark and leaf, collected around the Fukushima Daiichi Nuclear Power Plant in May 2013 was determined with the aim of investigating the migration of both nuclides using their radioactivity ratio. The radioactivity of 90Sr was determined by using Cherenkov counting of 90Y after purification using Sr resin and that of 137Cs was determined by -spectrometry. Quench correction in Cherenkov counting was investigated by measurements of samples spiked with purified 90Y revealed that the radioactivity could be evaluated without quench correction. The radioactivity ratio of 90Sr to 137Cs in bark samples of 4.2×10-3 and 1.2×10-2 was compared with the results from soil samples collected in July 2011 to show that the migration of 90Sr was slower than 137Cs in bark and tree.
Type: article (author version)
URI: http://hdl.handle.net/2115/57992
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 太田 朋子

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