Two correction methods were introduced and evaluated for coincidence summing effect of γ-γ cascade radiation rnin γ spectrometry. It is concluded that the method in which the angular correlation of γ-γ cascade radiation is ignored should not be adopted in rngeneral.%绍了γ谱分析中的γ-γ级联辐射的符合相加校正的两种方法的原理及相应的计算表达式,并对它们作了评价。通过比较可知,不考虑级联γ辐射rn角关联的符合相加效应的校正方法通常不应采纳。
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