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Tc-99 concentrations in soils collected in Japan, Chernobyl and Dolon
https://repo.qst.go.jp/records/63024
https://repo.qst.go.jp/records/63024f4296315-b196-47d1-8e19-ecbc624aebed
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2009-03-30 | |||||
| タイトル | ||||||
| タイトル | Tc-99 concentrations in soils collected in Japan, Chernobyl and Dolon | |||||
| 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_c94f | |||||
| 資源タイプ | conference object | |||||
| 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 |
Tagami, Keiko
× Tagami, Keiko× 田上 恵子 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Technetium-99 (Tc-99) is a pure beta emitter (Emax=0.29keV) and its radiological half-life is 2.11 x 105 y. It is produced in the fissions of U-235 and Pu-239 at relatively high ratios of ca. 6%, which is similar to the values for Cs-137 and Sr-90. Tc-99 is widely distributed in the environment as a result of fallout from nuclear weapons testing and discharges from nuclear facilities. Tc is thought to be highly soluble and rarely adsorbed onto soil, however, its mobility under natural environment is not well known because its scarcity and low levels in environmental samples has limited the available data. In this study, therefore we determined the concentrations of Tc-99 in soil samples collected in agricultural fields in Japan, three forests near the Chernobyl (the Federal Office for Radiation Protection, Germany, assisted by Moscow State University, Russia, and the Research and Industrial Association 'Pripyat', Ukraine), and samples collected at Dolon (provided by Dr. Imanaka, Kyoto University, and Dr. Hoshi, Hiroshima University) to understand the distribution. | |||||
| 会議概要（会議名, 開催地, 会期, 主催者等） | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | 14th Hiroshima International Symposium -Semipalatinsk and related studies- | |||||
| 発表年月日 | ||||||
| 日付 | 2009-03-26 | |||||
| 日付タイプ | Issued | |||||
