Radon and thoron exhalation rate map in Japan

Masahiro Hosoda, Michikuni Shimo, Masato Sugino, Masahide Furukawa, Masahiro Fukushi, Kazuyuki Minami, Kazutaka Ejiri

研究成果: Conference contribution

13 被引用数 (Scopus)

抄録

Measurements of radon and thoron exhalation rates have been done using the radon and thoron exhalation rate measuring instrument adopting the accumulation method. We obtained the 111 data in the 40 sites of the 14 prefectures in Japan. The arithmetic average value of the radon and thoron exhalation rates by all 111 data were obtained to be 8.6 mBq·m-2 ·s- and 0.80 Bq·m-2·s-1, respectively, and we have reported the radon and thoron exhalation rates in relation to the geological features. The relation between the exhalation rate and geology was shown that the exhalation rate had an increasing tendency in order of basic rock, neutral rock and acidic rock. We made the nationwide exhalation-rate map using the survey data of exhalation-rate of radon and thoron and the geological distribution map.

本文言語English
ホスト出版物のタイトルThe Natural Radiation Environment - 8th International Symposium (NRE VIII)
ページ177-180
ページ数4
DOI
出版ステータスPublished - 26-09-2008
イベント8th International Symposium on the Natural Radiation Environment, NRE VIII - Buzios, Rio de Janeiro, Brazil
継続期間: 07-10-200712-10-2007

出版物シリーズ

名前AIP Conference Proceedings
1034
ISSN(印刷版)0094-243X
ISSN(電子版)1551-7616

Other

Other8th International Symposium on the Natural Radiation Environment, NRE VIII
CountryBrazil
CityBuzios, Rio de Janeiro
Period07-10-0712-10-07

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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