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Title: Age dependence of individual external doses in an early stage after the Fukushima nuclear accident
Authors: Ishikawa, Tetsuo
Yasumura, Seiji
Akahane, Keiichi
Yonai, Shunsuke
Ohtsuru, Akira
Sakai, Akira
Ohira, Tetsuya
Kamiya, Kenji
Affiliation: 放射線医学県民健康管理センター
Source title: Radiation protection dosimetry
Volume: 188
Issue: 2
Start page: 238
End page: 245
Issue Date: Feb-2020
Abstract: Individual external doses for the first 4 months after the Fukushima accident have been estimated by the 'Basic Survey' of the Fukushima Health Management Survey. On the other hand, the UNSCEAR 2013 report presented the first-year effective dose due to external radiation for each municipality in nonevacuated areas of Fukushima Prefecture. In this study, the doses estimated by the Basic Survey were averaged for each of three age groups (infants, 0-5 y; children, 6-15 y; and adults, >16 y), in accordance with the categories adopted by the UNSCEAR report. The average dose ratios (infants/adults and children/adults) obtained from the Basic Survey were 1.08 and 1.06 for nonevacuated areas, respectively. These were smaller than the estimation by the UNSCEAR report (1.7 and 1.4, respectively). Three factors (body size factor, location factor and occupancy factor) were discussed and the location and occupancy factors were likely to be reasons for the difference.
Publisher: Oxford University Press
language: eng
URI: http://ir.fmu.ac.jp/dspace/handle/123456789/1573
Full text URL: http://ir.fmu.ac.jp/dspace/bitstream/123456789/1573/1/RadiatProtDosimetry_188_p238.pdf
ISSN: 0144-8420
DOI: 10.1093/rpd/ncz281
PubMed ID: 31875902
Other version: https://doi.org/10.1093/rpd/ncz281
Rights: © The Author(s) 2019. This is a pre-copyedited, author-produced version of an article accepted for publication in "Radiation Protection Dosimetry" following peer review. The version of record "Radiat Prot Dosimetry. 2020 Feb;188(2):238-245" is available online at: https://doi.org/10.1093/rpd/ncz281.
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