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瀬川 麻里子; 藤 暢輔; 甲斐 哲也; 木村 敦; 中村 詔司
Annals of Nuclear Energy, 167, p.108828_1 - 108828_5, 2022/03
被引用回数:0 パーセンタイル:0.01(Nuclear Science & Technology)To obtain accurate analytical results via neutron-capture reactions, the effects of sample shapes must be considered. However, the estimations of the effects were difficult to verify in some cases such as sealed samples and valuable objects. In this study, the shape effects for sealed radioactive samples were estimated experimentally. The significant localization of the I sample was confirmed only by an energy-resolved neutron imaging. It is revealed that the shape effect was necessary to be corrected at the neutron resonance peaks. Consequently, we conclude that the energy-resolved neutron imaging will be quite effective to improve the analytical accuracy.
甲斐 哲也
no journal, ,
中性子ラジオグラフィ技術の解説に続いて、中性子透過率のエネルギーによる変化を解析し、対象物の結晶情報を得る「ブラッグエッジイメージング」、元素情報や温度情報を測定する「共鳴吸収イメージング」、偏極中性子を使って磁場の空間分布を取得する「磁気イメージング」について説明を行う。また、J-PARCで運用を開始したパルス中性子イメージング装置「螺鈿」の概要と利用例について紹介する。