The JCO criticality accident at Tokai-mura, Japan: an overview of the sampling campaign and preliminary results

K Komura, M Yamamoto, T Muroyama, Y Murata, T Nakanishi, M Hoshi, J Takada, M Ishikawa, S Takeoka, K Kitagawa, S Suga, S Endo, N Tosaki, T Mitsugashira, M Hara, T Hashimoto, M Takano, Y Yanagawa, T Tsuboi, M Ichimasa, Y Ichimasa, H Imura, E Sasajima, R Seki, Y Saito, M Kondo, S Kojima, Y Muramatsu, S Yoshida, S Shibata, H Yonehara, Y Watanabe, S Kimura, K Shiraishi, T Ban-nai, S.K Sahoo, Y Igarashi, M Aoyama, K Hirose, T Uehiro, T Doi, A Tanaka, T Matsuzawa

doi:10.1016/s0265-931x(00)00054-0

The JCO criticality accident at Tokai-mura, Japan: an overview of the sampling campaign and preliminary results

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書誌事項

公開日: 2000-08

権利情報

https://www.elsevier.com/tdm/userlicense/1.0/

DOI

10.1016/s0265-931x(00)00054-0

公開者: Elsevier BV

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説明

A criticality accident occurred on September 30, 1999 at the uranium conversion facility of the JCO Company Ltd. in Tokai-mura, Japan. A collaborating scientific investigation team was organized in two groups, the first to carry out research on the environmental impact (the environmental research group) and the second to assess the radiation effects on residents (the biological research group). This report concerns only the activities of the environmental research group. Four investigative teams were sent on different dates to the accident site and its vicinity to collect samples. About 400 samples were collected and subjected to analysis. An outline of the sampling campaign is presented here along with a brief chronology of the accident and the preliminary key results obtained by the independent research group are summarised in this Special Issue of the Journal of Environmental Radioactivity.