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Determination of radiation produced by neutrons in heavily exposed workers of the JCO criticality acccident in Tokai-mura for estimating an individual's neutron fluence.
https://repo.qst.go.jp/records/44139
https://repo.qst.go.jp/records/44139caa732e2-7dbb-4b58-b564-b2f587a8a37c
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2006-06-05 | |||||
| タイトル | ||||||
| タイトル | Determination of radiation produced by neutrons in heavily exposed workers of the JCO criticality acccident in Tokai-mura for estimating an individual's neutron fluence. | |||||
| 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 |
Muramatsu, Yasuyuki
× Muramatsu, Yasuyuki× Noda, Yutaka× Yonehara, Hidenori× Ishigure, Nobuhito× Yoshida, Satoshi× Yukawa, Masae× Tagami, Keiko× Ban-nai, Tadaaki× Uchida, Shigeo× Hirama, Toshiyasu× Akashi, Makoto× Nakamura, Yuuji× 村松 康行× 野田 豐× 米原 英典× 石榑 信人× 吉田 聡× 湯川 雅枝× 田上 恵子× 坂内 忠明× 内田 滋夫× 平間 敏靖× 明石 真言× 中村 裕二 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | In the Tokai-mura criticality accident, three workers were heavily exposed. Biological materials, such as blood, urine, vomit and hair, were collected from the workers and analyzed for radioactivities, produced by the neutron irradiation. Activation products, such as 24Na, 42K and 82Br, were found in these materials by gamma-ray spectrometry. The radionuclide of the highest activity observed in biological materials was 24Na, e.g. the concentrations of this nuclide in the blood samples from the three patients at the accident time were 169, 92 and 23 Bq/ml, respectively. The concentrations of stable sodium in the same samples were determined by ICP-AES to obtain specific activities of 24Na (concentration ratio between the produced 24Na and stable 23Na), which are essential for estimating the neutron fluences and radiation doses. The specific activities of 24Na obtained for the three patients through the blood analysis were 8.2 x104, 4.3 x104 and 1.2 x104 Bq24Na/g23Na. Based on these values, individual's neutron fluences were estimated to be 5.7 x1011, 3.0 x 1011 and 0.85 x 1011 cm-2, respectively. | |||||
| 書誌情報 |
Journal of Radiation Research 巻 42, p. 117-128, 発行日 2001 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0449-3060 | |||||
