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タイトル: External Radiation in Dolon Village Due to Local Fallout from the First USSR Atomic Bomb Test in 1949
著者: Imanaka, Tetsuji
Fukutani, Satoshi
Yamamoto, Masayoshi link image link image
Sakaguchi, Aya
Hoshi, Masaharu
山本, 政儀
発行日: 2006年
出版社(者): 日本放射線影響学会 = Japan Radiation Research Society
雑誌名: Journal of Radiation Research
ISSN: 0449-3060
巻: 47
号: SupplementA
開始ページ: A121
終了ページ: A127
キーワード: Semipalatinsk
Atomic bomb test
Fallout contamination
External radiation
Dolon
抄録: Dolon village, located about 60 km from the border of the Semipalatinsk Nuclear Test Site, is known to be heavily contaminated by local fallout from the first USSR atomic bomb test in 1949. External radiation in Dolon was evaluated based on recent 137Cs data in soil and calculation of temporal change in the fission product composition. After fitting a log-normal distribution to the soil data, a 137Cs deposition of 32 kBq m-2, which corresponds to the 90th-percentile of the distribution, was tentatively chosen as a value to evaluate the radiation situation in 1949. Our calculation indicated that more than 95% of the cumulative dose for 50 y had been delivered within 1 y after the deposition. The resulting cumulative dose for 1 y after the deposition, normalized to the initial contamination containing 1 kBq m-2 of 137Cs, was 15.6 mGy, assuming a fallout arrival time of 3 h and a medium level of fractionation. Finally, 0.50 Gy of absorbed dose in air was derived as our tentative estimate for 1-year cumulative external dose in Dolon due to local fallout from the first USSR test in 1949.
DOI: 10.1269/jrr.47.A121
URI: http://hdl.handle.net/2297/28347
関連URI: http://scpj.tulips.tsukuba.ac.jp/info/nii.html
http://wwwsoc.nii.ac.jp/jrr/index-j.html
JST.JSTAGE/jrr/47.A121
資料種別: Journal Article
権利関係: Copyright (c) 2006 Journal of Radiation Research 編集委員会
版表示: publisher
出現コレクション:1. 査読済論文

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