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Activity concentration of natural radioactive nuclides in nonmetallic industrial raw materials in Japan
https://repo.qst.go.jp/records/47002
https://repo.qst.go.jp/records/470020523c5ee-4b85-4da7-8140-9632567b4bcd
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2014-12-16 | |||||
タイトル | ||||||
タイトル | Activity concentration of natural radioactive nuclides in nonmetallic industrial raw materials in 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 |
岩岡, 和輝
× 岩岡, 和輝× 田部, 裕章× 米原, 英典× 岩岡 和輝× 田部 裕章× 米原 英典 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Natural materials such as rock, ore, and clay, containing natural radioactive nuclides are widely used as industrial raw materials in Japan. If these are high concentrations, the workers who handle the material can be unknowingly exposed to radiation at a high level. In this study, about 80 nonmetallic natural materials frequently used as industrial raw materials in Japan were comprehensively collected from several industrial companies, and the activity concentrations of 238U series, 232Th series and 40K in the materials was determined by ICP-MS (inductively-coupled plasma mass spectrometer) and gamma ray spectrum analyses. Effective doses to workers handling them were estimated by using methods for dose estimation given in the RP 122. We found the activity concentrations to be lower than the critical values defined by regulatory requirements as described in the IAEA Safety Guide. The maximum estimated effective dose to workers handling these materials was 0.16 mSv y−1, which was lower than the reference level (1–20 mSv y−1) for existing situation given in the ICRP Publ.103. | |||||
書誌情報 |
Journal of Environmental Radioactivity 巻 137, p. 130-136, 発行日 2014-10 |
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出版者 | ||||||
出版者 | Elsevier | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1016/j.jenvrad |