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Neutron dose estimation by 24Na measurements in the triage of exposed individuals after criticality accidents: A case study of the Tokaimura criticality accident
https://repo.qst.go.jp/records/2001360
https://repo.qst.go.jp/records/2001360fcd62a99-4d72-4721-9cb9-970003ff3a53
| アイテムタイプ | 学術雑誌論文 / Journal Article(1) | |||||||||
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| 公開日 | 2024-12-05 | |||||||||
| タイトル | ||||||||||
| タイトル | Neutron dose estimation by 24Na measurements in the triage of exposed individuals after criticality accidents: A case study of the Tokaimura criticality accident | |||||||||
| 言語 | en | |||||||||
| 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 | |||||||||
| 著者 |
Kowatari Munehiko
× Kowatari Munehiko
× Kurihara Osamu
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| 抄録 | ||||||||||
| 内容記述タイプ | Abstract | |||||||||
| 内容記述 | We investigated the neutron dose estimation for the triage of personnel involved in criticality accidents by conducting 24Na measurements via the whole-body measurement method. For a case study, we examined the September 1999 Japan Nuclear Fuel Conversion Co. (JCO) criticality accident (internationally known as “the Tokaimura accident”). We investigated the neutron-induced radionuclides produced in worker C’s body due to the irradiation of the primary pulse. A total of 87 radionuclides were identified, with activities ranging from 1.3 × 10-19 Bq to 6.9 × 106 Bq for worker C by Monte Carlo simulations. The radionuclide with the highest activity was revealed by calculation results: 28Al (t1/2 = 2.2 min.) 6.9 × 106 Bq. The specific activity of 38Cl reached a level that was three times that of 24Na. These radionuclides would severely affect the 24Na measurement in the whole-body measurements performed in the immediate post-accident period. Spectrometry would be preferable for determining 24Na specific activities by whole-body measurements at accident sites. | |||||||||
| 書誌情報 |
Dadiation Protection Dosimetry 発行日 2024-12 |
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| DOI | ||||||||||
| 識別子タイプ | DOI | |||||||||
| 関連識別子 | 10.1093/rpd/ncae222 | |||||||||
