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Measurement of 238Pu and 239+240Pu in Soil samples affected by Fukushima Daiichi Nuclear Power Plant Accident using alpha spectrometer
https://repo.qst.go.jp/records/72963
https://repo.qst.go.jp/records/729638a85a48c-906c-44ef-89f2-96059fff9971
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2018-10-01 | |||||
| タイトル | ||||||
| タイトル | Measurement of 238Pu and 239+240Pu in Soil samples affected by Fukushima Daiichi Nuclear Power Plant Accident using alpha spectrometer | |||||
| 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 |
Sahoo, S.K.
× Sahoo, S.K.× Kierepko, R.× Kasar, S.× Kavasi, N.× Aono, T.× W Mietelski , J.× E., Łokas× Sahoo, Sarata× Kasar, Sharayu× Kavasi, Norbert× Aono, Tatsuo |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The impact of the actinides after Fukushima NPP accident on the environment is still unclear. There are reported vales that can help public to supplement general overview of the contamination level of Pu isotopes in the soil. The activity concentration of 239+240Pu in our soil samples from Namiemachi area ranged between (13-360) mBq/kg, whereas 238Pu was detectable in a few samples. This fact suggests especially global fallout as a main source of Pu isotopes in analyzed samples. Based on the activity ratio of the 238Pu/239+240Pu for Pu that equals to 0.03 as global fallout ratio. We are allowed to estimate that level of the 238Pu concentration, which should be closed to the detection limit for alpha spectrometry. However, additional 241Am analysis may able to clarify and up to date our results. The activity concentration of 241Am ranged from 0.04 ± 0.01 Bq/kg to 0.34 ± 0.08 Bq/kg. The relationship between activity concentration of 241Am and 239+240Pu (241Am/239+240Pu) strongly indicated contribution of the other source than global fallout for a few samples (activity ratio higher than 0.3). | |||||
| 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 | 13th International Symposium on Nuclear and Environmental Radiochemical Analysis:ERA13 | |||||
| 発表年月日 | ||||||
| 日付 | 2018-09-18 | |||||
| 日付タイプ | Issued | |||||
