由于Ge(Li)探测器具有优良的能量分辨,因此它是定量分析γ谱的有力工具。在活化分析、同位素放射性杂质的鉴定以及核谱研究中都有着重要意义。而精确地测量γ强度,主要取决于探测器效率曲线的精确刻度。每个Ge(Li)探测器的几何尺寸不一,故探测器的效率ε随能量Er的变化关系必须实验测定。 Because Ge (Li) detectors have excellent energy resolution, it is a powerful tool for the quantitative analysis of gamma spectra. In the activation analysis, the identification of isotope radioactive impurities and nuclear studies are of great significance. Accurately measuring the gamma intensity depends mainly on the exact scale of the detector’s efficiency curve. The geometry of each Ge (Li) detector varies, so the detector efficiency, ε, must be experimentally determined as a function of energy Er.