Evaluation of the 1077 keV γ-ray emission probability from 6SGa decay |
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作者姓名: | 黄小龙 江历阳 陈雄军 陈国长 |
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作者单位: | China Institute of Atomic Energy, P.O.Box 275(41), Beijing 102413, China |
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摘 要: | 6SGa decays to the excited states of aSzn through the electron capture decay mode. New recommended values for the emission probability of 1077 keV γ-ray given by the ENSDF and DDEP databases all use data from absolute measurements. In 2011, JIANG Li-Yang deduced a new value for 1077 keV γ-ray emission probability by measuring the 69Ga(n,2n) 6SGa reaction cross section. The new value is about 20% lower than values obtained from previous absolute measurements and evaluations. In this paper, the discrepancies among the measurements and evaluations are analyzed carefully and the new values are re-recommended. Our recommended value for the emission probability of 1077 keV γ-ray is (2.72±0.16)%.
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关 键 词: | 电子俘获 衰变模式 概率 发射 射线 评价 绝对测量 环境保护 |
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