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Vertical distributions of 99Tc and 99Tc/137Cs activity ratio in the coastal water off Aomori, Japan
https://repo.qst.go.jp/records/46106
https://repo.qst.go.jp/records/4610666cbb630-ab1c-4cd6-8c53-5d1c4a29f441
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2011-06-13 | |||||
タイトル | ||||||
タイトル | Vertical distributions of 99Tc and 99Tc/137Cs activity ratio in the coastal water off Aomori, Japan | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
Nakanishi, Takahiro
× Nakanishi, Takahiro× Zheng, Jian× Aono, Tatsuo× Yamada, Masatoshi× Kusakabe, Masashi× 中西 貴宏× 鄭 建× 青野 辰雄× 山田 正俊× 日下部 正志 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Using a sector-field ICP-MS the vertical distributions of the 99Tc concentration and 99Tc/137Cs activity ratio were measured in the coastal waters off Aomori Prefecture, Japan, where a spent-nuclear-fuel reprocessing plant has begun test operation. The 99Tc concentrations in surface water ranged from 1.8 to 2.4 mBq/m3, no greater than the estimated background level. Relatively high 99Tc/137Cs activity ratios would be caused by the inflow of the high-99Tc/137Cs water mass from the Japan Sea. There is no observable contamination from the reprocessing plant in the investigated area. The 99Tc concentration and the 99Tc/137Cs activity ratio in water column showed gradual decreases with depth. Our results implied that 99Tc behaves in a more conservative manner than 137Cs in marine environments. | |||||
書誌情報 |
Journal of Environmental Radioactivity 巻 102, 号 8, p. 774-779, 発行日 2010-04 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0265-931X | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1016/j.jenvrad.2011.04.008 | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | www.elsevier.com/locate/jenvrad | |||||
関連名称 | www.elsevier.com/locate/jenvrad |