【摘要】 本文对几种主要找峰方法进行比较的结果表明:高斯乘积函数法和协方差法对弱放射性γ谱,数据光滑前不能使用,若先作数据光滑再找峰,又容易影响重峰的分辨。第一、二、三阶数值微商法和对称零面积变换法无论γ谱数据统计质量如何,均可使用。从高基底和统计假峰的抑制能力及重峰分辨能力来看,第一和三阶数值微商法及对称零面积变换法较好。特别是对称零面积变换法找峰,效果最佳。更多还原

【Abstract】 In this paper,a comparison of some peak search methods is described.The results show that the Gaussian product functions and covariance methods can not be applied for weak gamma-ray spectrum before the data are smoothed.The resolution of multiplets will be seriously affected if the data are first smoothed.The first plus third difference and zero-area conversion methods are not affected by poor statistic data.The latter ones are more suitable to repressing higher background and the false peaks and for resolving multiplet Especially,symmetric zero-area conversion is the best method for searching the peaks.更多还原