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Discriminative Measurement of Absorbed Dose Rates in Air from Natural and Artificial Radionuclides in Namie Town, Fukushima Prefecture
https://repo.qst.go.jp/records/81728
https://repo.qst.go.jp/records/81728e83cba4f-f5b8-4d9c-9553-07ba2ca6c3ef
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2021-01-25 | |||||
タイトル | ||||||
タイトル | Discriminative Measurement of Absorbed Dose Rates in Air from Natural and Artificial Radionuclides in Namie Town, Fukushima Prefecture | |||||
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 |
Ogura, Koya
× Ogura, Koya× Hosoda, Masahiro× Tamakuma, Yuki× Suzuki, Takahito× Yamada, Ryohei× Negami, Ryoju× Tsujiguchi, Takakiyo× Yamaguchi, Masaru× Shiroma, Yoshitaka× Iwaoka, Kazuki× Akata, Naofumi× Shimizu, Mayumi× Kashiwakura, Ikuo× Tokonami, Shinji× Kazuki, Iwaoka |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Ten years have elapsed since the accident at the Fukushima Daiichi Nuclear Power Plant in 2011, and the relative contribution of natural radiation is increasing in Fukushima Prefecture due to the reduced dose of artificial radiation. In order to accurately determine the effective dose of exposure to artificial radiation, it is necessary to evaluate the effective dose of natural as well as artificial components. In this study, we measured the gamma-ray pulse-height distribution over the accessible area of Namie Town, Fukushima Prefecture, and evaluated the annual effective dose of external exposure by distinguishing between natural and artificial radionuclides. The estimated median (range) of absorbed dose rates in air from artificial radionuclides as of 1 April 2020, is 133 (67–511) nGy h−1 in the evacuation order cancellation zone, and 1306 (892–2081) nGy h−1 in the difficult-to-return zone. The median annual effective doses of external exposures from natural and artificial radionuclides were found to be 0.19 and 0.40 mSv in the evacuation order cancellation zone, and 0.25 and 3.9 mSv in the difficult-to-return zone. The latest annual effective dose of external exposure discriminated into natural and artificial radionuclides is expected to be utilized for radiation risk communication. | |||||
書誌情報 |
International Journal of Environmental Research and Public Health 巻 18, p. 978, 発行日 2021-01 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1660-4601 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.3390/ijerph18030978 | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://www.mdpi.com/1660-4601/18/3/978 |