An approach for calculating the detection efficiency of gamma-ray detectors, based on the calculation of the influx/outflux balance of the photons through the detector, is presented. This method can be applied to several simple geometrical configurations. The method is also used to estimate the solid angle of a detector.

中文翻译：

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计算NaI（Tl）探测器效率和立体角的分析方法

提出了一种基于对通过探测器的光子的流入/流出平衡的计算来计算伽马射线探测器的探测效率的方法。该方法可以应用于几种简单的几何构造。该方法还用于估计检测器的立体角。