WEKO3
アイテム
Plutonium concentration and isotopic ratio in soil samples from central-eastern Japan collected around the 1970s
https://repo.qst.go.jp/records/47271
https://repo.qst.go.jp/records/472713b991057-556a-4116-b69a-2783196582ce
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2015-09-15 | |||||
| タイトル | ||||||
| タイトル | Plutonium concentration and isotopic ratio in soil samples from central-eastern Japan collected around the 1970s | |||||
| 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 |
Yang, Guosheng
× Yang, Guosheng× 鄭, 建× 田上, 恵子× 内田, 滋夫× 鄭 建× 田上 恵子× 内田 滋夫 |
|||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Obtaining Pu background data in the environment is essential for contamination source identification and assessment of environmental impact of Pu released from the Fukushima Daiichi nuclear power plant (FDNPP) accident. However, no baseline information on Pu isotopes in Fukushima Prefecture has been reported. Here we analyzed 80 surface soil samples collected from the central-eastern Japan during 1969 – 1977 for 239+240Pu activity concentration and 240Pu/239Pu atom ratio to establish the baseline before the FDNPP accident. We found that 239+240Pu activity concentrations ranged from 0.004 –1.46 mBq g-1, and 240Pu/239Pu atom ratios varied narrowly from 0.148 to 0.229 with a mean of 0.186 ± 0.015. We also reconstructed the surface deposition density of 241Pu using the 241Pu/239Pu atom ratio in the Japanese fallout reference material. The obtained results indicated that, for the FDNPP-accident released 241Pu, a similar radiation impact can be estimated as was seen for the global fallout deposited 241Pu in the last decades. | |||||
| 書誌情報 |
Scientific Reports 巻 5, 号 9636, 発行日 2015-04 |
|||||
| 出版者 | ||||||
| 出版者 | Nature Publishing Group | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | doi:10.1038/srep09636 | |||||
