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Pu isotopes in soils collected downwind from Lop Nor: regional fallout vs. global fallout
https://repo.qst.go.jp/records/47279
https://repo.qst.go.jp/records/47279310f0751-a037-4bdb-9138-b2f91154d689
名前 / ファイル | ライセンス | アクション |
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Bu et al-Gansu soil-Pu-Cs-srep12262.pdf (1.0 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2015-09-15 | |||||
タイトル | ||||||
タイトル | Pu isotopes in soils collected downwind from Lop Nor: regional fallout vs. global fallout | |||||
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 | |||||
著者 |
ト, 文庭
× ト, 文庭× Ni, Youyi× Guo, Qiuju× 鄭, 建× 内田, 滋夫× ト 文庭× 鄭 建× 内田 滋夫 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | For the first time, soil core samples from the Jiuquan region have been analyzed for Pu isotopes for radioactive source identification and radiological assessment. The Jiuquan region is in downwind from the Lop Nor Chinese nuclear test (CNT) site. The high Pu inventories (13 to 546 Bq/m2) in most of the sampling locations revealed that this region was heterogeneously contaminated by the regional fallout Pu from the CNTs. The contributions of the CNTs to the total Pu in soils were estimated to be more than 40% in most cases. The 240Pu/239Pu atom ratios in the soils ranged from 0.059 to 0.186 with an inventory-weighted average of 0.158, slightly lower than that of global fallout. This atom ratio could be considered as a mixed fingerprint of Pu from the CNTs. In addition, Pu in soils of Jiuquan region had a faster downward migration rate compared with other investigated places in China. |
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書誌情報 |
Scientific Reports 巻 5, p. 12262, 発行日 2015-07 |
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出版者 | ||||||
出版者 | Nature Publishing Press | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 2045-2322 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | doi:10.1038/srep12262 |