Verification experiment of threshold detector 107Ag(n,n')107mAg on "YAYOI" standard neutron field.
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概要
- 論文の詳細を見る
The validity of the <SUP>107</SUP>Ag (n, n')<SUP>107m</SUP>Ag reaction for reactor neutron dosimetry has been examined through an irradiation experiment using the standard neutron field in the "YAYOI", a fast neutron source reactor. The test foil used was 99.0% <SUP>107</SUP>Ag enriched silver, which was irradiated along with five reference foils already well evaluated. The reaction rate of <SUP>107</SUP>Ag was determined by K X-ray counting with a high-purity Ge detector. The cross section for the <SUP>107</SUP>Ag (n, n')<SUP>107m</SUP>Ag reaction was compiled from the excitation cross section data of <SUP>107</SUP>Ag published in ENDF/B-IV, in combination with the decay scheme of <SUP>107m</SUP>Ag listed in the "Table of Isotopes". Using the neutron spectrum which had previously been precisely measured, it was found that the compiled activity of <SUP>107m</SUP>Ag was underestimated by 12.8±5%. This error is attributed to significant underestimation involved in the cross section of the 107Ag(n, n')107mAg reaction.
- 一般社団法人 日本原子力学会の論文
著者
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NAKAZAWA Masaharu
Nuclear Engineering Research Laboratory, University of Tokyo
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KONDO Ikuo
Oarai Research Establishment, Japan Atomic Energy Research Institute
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KONDO Ikuo
Oarai Research Establishment,Japan Atomic Energy Research Institute
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SAKURAI Kiyoshi
Oarai Research Establishment,Japan Atomic Energy Research Institute
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NAKAZAWA Masaharu
Nuclear Engineering Research Laboratory, Faculty of Engineering, University of Tokyo
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SAKURAI Kiyoshi
Oarai Research Establishment, Japan Atomic Energy Research Institute
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