Analysis of a Uranium Solution for Evaluating the Total Number of Fissions in the JCO Criticality Accident in Tokai-mura

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概要

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• The uranium solution in the precipitation tank in the JCO's uranium conversion facility was analyzed in order to evaluate the total number of fissions in the criticality accident. Two analytical groups at JAERI performed chemical analyses independently in order to check the validity of the results: the concentration of the fission products (^<95> Zr, ^<99>Mo, ^<103>Ru, ^<131>I, ^<140>Ba, etc), uranium, boron and impurity elements in the solution. The analytical results obtained by the two groups were almost in agreement within the analytical error. The number of fissions per one gram of uranium in the accident was determined to be (1.5 ± 0.1) ×10^<14>. Also, the total number of events was evaluated to be (2.5 ± 0.1) ×10^<18> fissions using the total amount of uranium (16.6 kg) fed into the precipitation tank at the accident.

• 日本放射線影響学会の論文

著者

• SUZUKI Daisuke

  Department of Anatomy, Sapporo Medical University School of Medicine

• WATANABE Kazuo

  Department of Pathology, Fukushima Medical University Hospital

• Uchiyama Gunzo

  Department Of Fuel Cycle Safety Research

• Uchiyama Gunzo

  Department Of Fuel Cycle Safety Japan Atomic Energy Research Institute

• SATO Takeshi

  Department of Clinical Oncology, The Institute of Medical Science, The University of Tokyo

• ITO Mitsuo

  Department of Chemistry and Fuel Research, Japan Atomic Energy Research Institute

• KOHNO Nobuaki

  Department of Radiology, Osaka University, Medical School

• MIYAUCHI MASAKATSU

  Department of Safety Research Technical Support, Japan Atomic Energy Research Institute

• TOGASHI YOSHIHIRO

  Department of Safety Research Technical Support, Japan Atomic Energy Research Institute

• NAKAHARA YOSHINORI

  Department of Environmental Sciences

• FUKAYA HIROYUKI

  Department of Safety Research Technical Support, Japan Atomic Energy Research Institute

• INAGAWA JUN

  Department of Environmental Sciences

• SONODA TAKASHI

  Department of Safety Research Technical Support, Japan Atomic Energy Research Institute

• GUNJI KATSUBUMI

  Department of Environmental Sciences

• Sato Takeshi

  Department Of Bioresource Science Faculty Of Agriculture Kagawa University

• Ito Mitsuo

  Department Of Chemistry And Fuel Research Japan Atomic Energy Research Institute

• Ito Mitsuo

  Department Of Environmental Sciences

• Kohno Nobuaki

  Department Of Environmental Sciences

• Sonoda Takashi

  Department Of Mechanical Engineering Faculty Of Engineering Hokkaido University

• Sonoda Takashi

  Department Of Safety Research Technical Support Japan Atomic Energy Research Institute

• Fukaya Hiroyuki

  Department Of Safety Research Technical Support Japan Atomic Energy Research Institute

• Watanabe Kazuo

  Department Of Pathology Fukushima Medical University Hospital

• Togashi Yoshihiro

  Department Of Safety Research Technical Support Japan Atomic Energy Research Institute

• Miyauchi Masakatsu

  Department Of Safety Research Technical Support Japan Atomic Energy Research Institute

• Suzuki Daisuke

  Department Of Anatomy Sapporo Medical University School Of Medicine

• Suzuki Daisuke

  Department Of Environmental Sciences

• Watanabe Kazuo

  Department Of Environmental Sciences

• Watanabe Kazuo

  Department Of Biology Faculty Of Science Osaka University

• Sato Takeshi

  Department Of Safety Research Technical Support Japan Atomic Energy Research Institute

• MIYAUCHI Masakatsu

  Department of Fuel Safety Research, Japan Atomic Energy Research Institute

• KOHNO Nobuaki

  Department of Chemistry and Fuel Research, Japan Atomic Energy Research Institute

• NAKAHARA Yoshinori

  Department of Chemistry and Fuel Research, Japan Atomic Energy Research Institute

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