A Method to Estimate the Fast-Neutron Fluence for the Hiroshima Atomic Bomb

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概要

• 論文の詳細を見る

• A new method to estimate the fast-neutron fluence of the Hiroshima atomic bomb is proposed. ^<63>Ni produced by the ^<63>Cu(n, p)^<63>Ni reaction provides a unique measure by which to estimate the fast-neutron fluence of the Hiroshima/Nagasaki atomic bombs, because the half-life of ^<63>Ni is 100 years and 70% of the ^<63>Ni produced in a copper piece presently exists after 50 years. Using the neutron spectrum given in DS86 and the estimated cross section, we found that a piece of copper of about 10 g which was exposed at a point around 100 m from the hypocenter gives a measurable amount of ^<63>Ni using a low-background liquid scintillation counter. For the measurement of ^<63>Ni, accelerator mass spectrometry also seems to be applicable.

• 社団法人日本物理学会の論文
• 1994-10-15

著者

• HOSHI MASAHARU

  Research Institute for Radiation Biology and Medicine, Hiroshima University

• 静間 清

  広島大学大学院工学研究科

• Ishikawa Masayori

  広島大学原爆放射線医科学研究所 分子発がん制御研究分野

• Ishikawa Masayori

  Department Of Medical Physics Hokkaido University Hospital

• Nakao N

  Radioisotope Center University Of Tokyo

• Shibata T

  Kyoto Univ. Kyoto

• Imamura Mineo

  Institute for Nuclear Study, University of Tokyo

• IWATANI KAZUO

  Hiroshima Prefectural College of Health and Welfare

• OKA TAKAMITSU

  Kure University

• SHIMAZAKI TATSUYA

  Kumamoto University Radioisotope Center

• Shibata Tadashi

  Department Of Physics Faculty Of Science Osaka University

• Shibata Seiichi

  Research Reactor Institute Kyoto University

• Shibata Seiichi

  Institute For Nuclear Study University Of Tokyo

• Nogawa Norio

  Radioisotope Center, the University of Tokyo

• UWAMINO Yoshitomo

  The Insutitute of Physical and Chemical Research

• UWAMINO Yoshitomo

  Institute of Physical and Chemical Research

• Shibata Tokushi

  Institute for Nuclear Study, University of Tokyo

• Ohkubo Tohru

  Institute for Nuclear Study, University of Tokyo

• Satoh Shinngo

  Institute for Nuclear Study, University of Tokyo

• Hasai Hiromi

  Applied Nuclear Physics, Faculty of Engineering, Hiroshima University

• Shizuma Kiyoshi

  Applied Nuclear Physics, Faculty of Engineering, Hiroshima University

• Iwatani Kazuo

  Applied Nuclear Physics, Faculty of Engineering, Hiroshima University

• Nogawa Norio

  Radioisotope Center University Of Tokyo

• Hoshi Masaharu

  Research Institute For Nuclear Medecine And Biology Hiroshima University

• Ohkubo Tohru

  Institute For Nuclear Study University Of Tokyo

• Nogawa N

  Radioisotope Center University Of Tokyo

• NOGAWA Norio

  Tokyo Institute of Technology

• Nogawa Norio

  Univ. Of Tokyo

• Imamura Mineo

  Institute For Nuclear Study University Of Tokyo

• Oka Takamitsu

  Kure Univ. Kure Jpn

• Hasai H

  Department Of Electrical Engineering Hiroshima Kokusai Gakuin University

• Satoh Shinngo

  Institute For Nuclear Study University Of Tokyo

• Shima Tatsushi

  Rcnp Osaka University

• Shibata Tokushi

  Institute for Nuclear Study, The University of Tokyo

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