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Scientific approach of environmental impact of the criticality accident

Scientific approach of environmental impact of the criticality accident
临界事故环境影响的科学方法
批准号:
11800013
负责人:
KOMURA Kazuhisa
金额:
$0.0万
依托单位:
依托单位国家:
日本
项目类别:
Grant-in-Aid for Special Purpose.
财政年份:
1999
资助国家:
日本
项目状态:
已结题
起止时间:
1999 至 2000

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中文摘要
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英文摘要
Environmental impact of the JCO criticality accident was investigated by "Environmental radioactivity research group" and "human effect research group" composed of about 60 members. More than 400 environmental samples (soil, plant leave, chemical reagent, metal, coin, table salt, sugar, stainless steel, fluorescent lamp, gold items etc.) were collected in and around the JCO campus. Concentrations of neutron-induced radionuclides and fission products were measured as a function of distance from the site. Most of the results were reported in "Journal of Environmental Radioactivity, Vol. 50, 2000" as the special issue on Tokai-mura accident. Measurements of long- lived nuclides are still continued in some laboratories. Result of discussion in "The 2_<nd> summer school on environmental radioactivity and radiation" held in June, 2000, was published as "What should be done by nuclear scientists in the case of nuclear accident". Measured values of each sample will be opened as "data base of Tokai- mura accident" with details on sampling map and investigator etc. Results of two research goups have been presented in number of domestic and international symposium.
期刊论文(25)
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会议论文
小藤久毅: "An estimation of fast neutron flux by ^<35>Cl(n,α) ^<32>P reaction."Journal of Environmental Radioactivity. 50・1,2. 43-48 (2000)
Hisatake Koto:“通过 ^<35>Cl(n,α) ^<32>P 反应估算快中子通量。”环境放射学杂志 50・1,2 (2000)。
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T.Mitsugashira, T.Nakanishi, R.Seki, and S.Kojima: "Estimation of total fission events in the JOC criticality accident by passive γ-ray measurement of ^<140>La in radioequilibrium with precursor ^<140>Ba"Journal of Nuclear and Radiochemical Sciences. 1. 5
T.Mitsugashira、T.Nakanishi、R.Seki 和 S.Kojima:“通过被动 γ 射线测量 ^<140>La 与前体 ^<140>Ba 的放射性平衡来估计 JOC 临界事故中的总裂变事件”核与放射化学科学杂志。 1. 5
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T.Matsuzawa, K.Lioka and Y.Kawai: "Gamma dose rate in the vicinity of JCO as of approximately 8 : 00 pm on September 30, 1999"Journal Environmental Radioactivity. 50 (1,2). 27-36 (2000)
T.Matsuzawa、K.Lioka 和 Y.Kawai:“截至 1999 年 9 月 30 日晚上 8:00 左右 JCO 附近的伽马剂量率”《环境放射杂志》。
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Y.Murata, T.Muroyama, H.Kofuji, M.Yamamoto and K.Komura: "Neutron-induced radionuclides in soil from the JCO campus by non-destructive γ-ray spectromety"Journal Environmental Radioactivity. 50 (1,2). 69-76 (2000)
Y.Murata、T.Muroyama、H.Kofuji、M.Yamamoto 和 K.Komura:“通过无损 γ 射线光谱法测定 JCO 园区土壤中的中子诱发放射性核素”《环境放射性》杂志 50 (1,2)。 .69-76 (2000)
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21
    DEVELOPMENT OF EXTREMELY LOW-LEVEL NEUTRON BY ACTIVATION METHOD AND ITS APPLICATION TO VARIOUS ENVIRONMENTS.
    Radioactive dating of animal bones of Jyomon-era by extremely low-level gamma-ray spectrometry.
    • 批准号:
      10480025
    • 项目类别:
      Grant-in-Aid for Scientific Research (B)
    • 资助金额:
      $6.66万
    • 财政年份:
      1998
    • 负责人:
      KOMURA Kazuhisa
    • 依托单位:
    海外基金