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在PDP11/34小型计算机上,用蒙特卡洛法计算NaI(Tl),Ge(Li)探测器对圆柱体源的效率。抽样采用加权,保证每次光子历程成功,降低了方差,缩短了计算时间。计算3″×3″NaI(Tl)对圆柱水溶液的效率与文献结果,在80—3000keV能区±1％内一致。该程序同时可得到体源自吸收因子和立体角数据。此方法可用来计算不同位置点源,线源,面源的效率。
On a PDP11 / 34 minicomputer, the Monte Carlo method was used to calculate the efficiency of the NaI (Tl), Ge (Li) detector on the cylinder source. Sampling is weighted to ensure that each photon success is successful, reducing variance and shortening calculation time. The calculation of the efficiency of a 3 “× 3” NaI (Tl) in a cylindrical aqueous solution is consistent with the literature results within ± 1% of the energy range of 80-3000 keV. The program can also get the body derived from the absorption factor and solid angle data. This method can be used to calculate the efficiency of point sources, line sources, and surface sources at different locations.