Dose Estimations of Fast Neutrons from a Nuclear Reactor by Micronuclear Yields in Onion Seedlings

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概要

• 論文の詳細を見る

• Irradiations of onion seedlings with fission neutrons from bare, Pb-moderated, and Fe-moderated ^<252>Cf sources induced micronuclei in the root-tip cells at similar rates. The rate per cGy averaged for the three sources, <b_n >, was 19 times higher than rate induced by ^<60>Co γ-rays. When neutron doses, D_n , were estimated from frequencies of micronuclei induced in onion seedlings after exposure to neutron-γ mixed radiation from a 1 W nuclear reactor, using the reciprocal of <b_n > as conversion factor, resulting D_n values agreed within 10% with doses measured with paired ionizing chambers. This excellent agreement was achieved by the high sensitivity of the onion system to fast neutrons relative to γ-rays and the high contribution of fast neutrons to the total dose of mixed radiation in the reactor's field.

• 日本放射線影響学会の論文

著者

• HOSHI Masaharu

  International Radiation Information Center, Research Institute for Radiation Biology and Medicine, H

• 遠藤 暁

  Mechanical System Engineering Graduate School Of Engineering Hiroshima University

• Endo Satoru

  Department Of Biochemistry Cancer Institute Okayama University Medical School

• FUJIKAWA Kazuo

  Department of Life Science, Faculty of Science and Technology, Kinki University

• Fujikawa K

  Department Of Life Science Faculty Of Science And Technology Kinki University

• Fujikawa K

  Kinki Univ. Higashi‐osaka Jpn

• Fujikawa K

  Faculty Of Science And Engineering Kinki University

• Endo Satoru

  Div. Environ. Biol. Res. Inst. Rad. Biol. And Med. Hiroshima University

• FUJIKAWA Kazuo

  Laboratory of Radiation Biology, Atomic Energy Research Institute, Kinki University

• ITOH Tetsuo

  Laboratory of Radiation Biology, Atomic Energy Research Institute, Kinki University

• Itoh Tetsuo

  広島大学 工学研究科機械システム工学専攻

• Hoshi Masaharu

  International Radiation Information Center Hiroshima University

• Itoh T

  Atomic Energy Research Institute Kinki University

• YONEZAWA Yoshihiko

  Department of Biology, Naruto University of Education

• Imanaka Tetsuji

  Res. Reactor Inst. Kyoto Univ.

• Fujikawa Kazuo

  Laboratory Of Radiation Biology Atomic Energy Research Institute Kinki University

• Yonezawa Yoshihiko

  Department Of Biology Naruto University Of Education

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