在60~3500keV能区，用

75

Se，

152

Eu及

56

Co对Ge（Li）探测器作了相对效率刻度，并用标定过强度的

113m

In、

60

Co作了绝对效率刻度。应用三次样条函数做拟合内插，由加权平均的归一化系数，给出这能区中33个点的绝对效率及其误差值。γ能谱由自动解谱程序分析。能区中任一点的绝对效率及其误差，可由三组三次样条函数拟合内插程序算出，绝对效率值的误差

<

±4%。

The absolute efficiencies were calibrated between 60~3500keV for Ge (Li) detector by using

75

Se

152

Eu

56

Co and calibrated sources

113m

In

60

Co. Cubic spline function have been served as functional fit to interpolate the 33 experimental points. The uncertaincy in absolute photopeak efficiency is within 4%.