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VARIABILITY OF RADIOCAESIUM INVENTORY IN FUKUSHIMA SOIL CORES FROM ONE SITE MEASURED AT DIFFERENT TIMES
https://repo.qst.go.jp/records/47368
https://repo.qst.go.jp/records/47368b8287fa8-9d88-4643-8311-81cf3feadf66
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2016-01-18 | |||||
| タイトル | ||||||
| タイトル | VARIABILITY OF RADIOCAESIUM INVENTORY IN FUKUSHIMA SOIL CORES FROM ONE SITE MEASURED AT DIFFERENT TIMES | |||||
| 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 |
Mishra, S.
× Mishra, S.× S.K.Sahoo× Arae, H.× Sorimachi, A.× Hosoda, M.× Tokonami, S.× ishikawa, T.× サフー サラタ クマール× 新江 秀樹 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The Fukushima Daiichi Nuclear Power Plant (FDNPP) accident has resulted in the deposition of radioactive contamination of soils mainly by 134Cs and 137Cs. The contaminated areas are of a great concern since external radiation may lead to significant long-term doses to humans and animals. External dose rate above ground will decrease with physical decay of the radionuclides and as they migrate deeper into the soil with time. In the present study, depth profiles of Cs radioisotopes have been studied at dif- ferent times over a period of 1 y. Radiocaesium inventories for 134Cs and 137Cs down to a depth of 10 cm at the four measurement times varied from 2.09 to 4.14 MBq m22 with coefficient of variation (CV): 27.4 %, n 5 4 and from 2.13 to 4.23 MBq m22 with CV: 27.3 %, n 5 4, respectively. The activity ratio for 134Cs/137Cs decreased from 0.62 to 0.46 during 1 y of measurement i.e. July 2012 to June 2013. However, the ratio with decay correction (15 March 2011) was found to be constant ∼1, indicating con- tamination from FDNPP origin. In order to understand the radiocaesium distribution in soil profile, physico-chemical character- isation of soil has been carried out. | |||||
| 書誌情報 |
Radiation Protection Dosimetry 巻 167, 号 1-3, p. 344-347, 発行日 2015-11 |
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| 出版者 | ||||||
| 出版者 | Oxford University Press | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0144-8420 | |||||
