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Monte-Carlo simulations with mathematical phantoms to investigate the effectiveness of a whole-body counter for thyroid measurement
https://repo.qst.go.jp/records/80595
https://repo.qst.go.jp/records/80595c86538d5-fc92-4e43-9389-b199c7b21d97
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2020-09-30 | |||||
| タイトル | ||||||
| タイトル | Monte-Carlo simulations with mathematical phantoms to investigate the effectiveness of a whole-body counter for thyroid measurement | |||||
| 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 |
Tani, Kotaro
× Tani, Kotaro× Igarashi, Yu× Eunjoo, Kim× Iimoto, Takeshi× Kurihara, Osamu× Kotaro, Tani× Yu, Igarashi× Eunjoo, Kim× Takeshi, Iimoto× Osamu, Kurihara |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | FASTSCAN (Canberra, Meriden, CT, USA), a standing-type whole-body counter with upper and lower NaI(Tl) detectors, has been mostly used to determine local residents’ level of internal contamination with 134/137Cs following the Fukushima Daiichi Nuclear Power Plant (FDNPP) disaster in 2011. In the present study, we performed Monte-Carlo simulations with age-specific mathematical human phantoms to investigate the counting efficiencies of the FASTSCAN counter for 131I thyroid measurements. As a result, although the lower detector had low sensitivity for 131I in the thyroids of the adult and 15 y phantoms as well as the 10 y phantom standing on a 30-cm-high stool, the response of this detector may be used as an indicator of surface contamination overlooked on a subject. The total counting efficiency investigated in this study was 0.017–0.018 (cps/Bq) among all age groups. Based on this sensitivity, the determination level for thyroid activity could be calculated to be ~300 Bq under the slightly elevated background radiation level observed after the FDNPP disaster. | |||||
| 書誌情報 |
Radiation Measurements 巻 135, p. 106335, 発行日 2020-07 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 1350-4487 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1016/j.radmeas.2020.106335 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://www.sciencedirect.com/science/article/pii/S1350448720300998#! | |||||
