Emission probabilities of some intense prompt 纬 rays of ²⁴Na, ²⁸Al, ⁵²V, ⁵⁶Mn, ⁶⁰Co, ¹⁴²Pr, ¹⁸⁷W and ¹⁹⁸Au with thermal neutron capture determined using 纬 rays follo

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• 作者：Michihiro Shibata^a ; ^{i45329a@nucc.cc.nagoya-u.ac.jp} ; Itaru Miyazaki^b ; Hiroaki Hayashi^a ; ¹ ; Akinori Tojo^b ; Masataka Furuta^b ; Yasuaki Kojima^a ; Akihiro Taniguchi^c ; Kiyoshi Kawade^b
• 关键词：Prompt 纬 ray ; Emission probability ; Thermal neutron capture reaction ; HPGe detector
• 刊名：Annals of Nuclear Energy
• 出版年：2012
• 期刊代码：1_03064549
• 类别：pw
• 出版时间：May, 2012
• 卷：43
• 期：Complete
• 页码：106-113
• 文件大小：551 K

摘要

Some emission probabilities of relatively intense or less contaminant prompt 纬 rays of ²⁴Na, ²⁸Al, ⁵²V, ⁵⁶Mn, ⁶⁰Co, ¹⁴²Pr, ¹⁸⁷W and ¹⁹⁸Au with thermal-neutron capture reactions were determined by successive measurement of 纬 rays following the 尾 decay of produced radioisotopes, namely 尾-delayed 纬 rays. Prompt and 尾-delayed 纬 rays were measured with the same HPGe detector the efficiency of which is well determined for a wide energy range, from 0.1 to 11 MeV. The previously proposed values for ²⁴Na, ²⁸Al, ⁶⁰Co and ¹⁹⁸Au except for low energy, were generally in agreement with the present results, while those for ⁵²V, ⁵⁶Mn, ¹⁴²Pr and ¹⁸⁷W were not. The reasons for the disagreement are discussed in terms of the detection efficiencies of the detectors, the used nuclear data and the normalization procedure for determining prompt 纬-ray intensities. The effectiveness of this method at checking the intensities of prompt 纬 rays is demonstrated.