Half-lives of isomeric levels of 87mSr, 111mCd, 113mIn and 115mIn activated by 60Co γ-ray irradiation
作者： Xiao-qiong Wen , Kiyoshi Shizuma , Shunichi Hamanaka , Kazuo Iwatani , Hiromi Hasai
DOI: 10.1016/S0168-9002(97)00757-2
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摘要: Abstract Isomers having half-lives of a few hours have been photoactivated by 60 Co γ-ray irradiation. The γ-rays emitted from isomers were measured with low-background Ge detector. decay data analyzed both least-squares method and maximum likelihood the suitability latter is discussed. obtained are: 87m Sr: 2.811 ± 0.027 h, 111m Cd: 48.30 0.15 min, 113m In: 1.663 0.011 h 115m 4.483 0.005 h.
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