Neutron Generator at Hiroshima University for Use in Radiobiology Study

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Author(s)

    • 遠藤 暁 ENDO S
    • 広島大学原爆放射能医学研究所 放射線基礎研究分野 Reserch Institute for Radiation Biology and Medicine, Hiroshima University
    • HOSHI M
    • 広島大学原爆放射能医学研究所放射線基礎研究分野 Reserch Institute for Radiation Biology and Medicine, Hiroshima University
    • TAUCHI H
    • 広島大学原爆放射能医学研究所放射線基礎研究分野 Reserch Institute for Radiation Biology and Medicine, Hiroshima University
    • TAKEOKA S
    • 広島大学原爆放射能医学研究所放射線基礎研究分野 Reseach Institute for Radiation Biology and Medicine, Hiroshima University
    • KITAGAWA K
    • 広島大学原爆放射能医学研究所放射線基礎研究分野 Reserch Institute for Radiation Biology and Medicine, Hiroshima University
    • SUGA S
    • 広島大学原爆放射能医学研究所放射線基礎研究分野 Reserch Institute for Radiation Biology and Medicine, Hiroshima University
    • MAEDA N
    • 広島大学原爆放射能医学研究所放射線基礎研究分野 Reserch Institute for Radiation Biology and Medicine, Hiroshima University
    • KOMATSU K
    • 広島大学原爆放射能医学研究所放射線基礎研究分野 Reserch Institute for Radiation Biology and Medicine, Hiroshima University
    • SAWADA S
    • 広島大学原爆放射能医学研究所放射線基礎研究分野 Reserch Institute for Radiation Biology and Medicine, Hiroshima University

Abstract

A neutron generator (HIRRAC) for use in radiobiology study has been constructed at the Research Institute for Radiation Biology and Medicine, Hiroshima University (RIRBM). Monoenergetic neutrons of which energy is less than 1.3 MeV are generated by the <SUP>7</SUP>Li(p, n)<SUP>7</SUP> Be reaction at proton energies up to 3 MeV. The protons are accelerated by a Schenkel-type-accelerator and are bombared onto the <SUP>7</SUP>Li-target. An apparatus for the irradiation of biological material such as mice, cultured cells and so on, was designed and will be manufactured. Neutron and gamma-ray dose rates were measured by paired (TE-TE and C-CO<SUB>2</SUB>) ionization chambers. Contamination of the gamma ray was less than about 6% when using 10-<i>μ</i>m-thick <SUP>7</SUP>Li as a target. Maximum dose rates for the tissue equivalent materials was 40 cGy/min at a distance of 10 cm from the target. Energy distributions of the obtained neutrons have been measured by a <SUP>3</SUP>He-gas proportional counter. The monoenergetic neutrons within an energy region from 0.1 to 1.3 MeV produced by thin <SUP>7</SUP>Li or <SUP>7</SUP>LiF targets had a small energy spread of about 50 keV (1 σ width of gaussian). The energy spread of neutrons was about 10% or less at an incident proton energy of 2.3 MeV. We found that HIRRAC produces small energy spread neutrons and at sufficient dose rates for use in radiobiology studies.

Journal

  • Journal of Radiation Research

    Journal of Radiation Research 36(2), 91-102, 1995-06

    Journal of Radiation Research Editorial Committee

References:  13

Cited by:  10

Codes

  • NII Article ID (NAID)
    110002328072
  • NII NACSIS-CAT ID (NCID)
    AA00705792
  • Text Lang
    ENG
  • Article Type
    Journal Article
  • ISSN
    04493060
  • Data Source
    CJP  CJPref  NII-ELS  J-STAGE  NDL-Digital 
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