环境辐射监测中γ谱仪无源效率刻度方法探讨

The Issue of Gamma Spectral System Sourceless Object Calibration Software Using in Radioactive Environment Measurement

对高纯锗探测器无源效率刻度方法的特点、建立方式、方法验证做了介绍。针对探测器进行了多点源的实测来验证无源效率拟合与标准值之间的偏差，在中高能区点源的验证结果在6％，环境介质中的土壤、动植物灰体源的验证结果表明圆柱型体源偏差在7％～10％。

The paper introduces the characteristic, based method of HPGe detector LabSOCS（Laboratory Sourcetess Object Calibration Software）. Compared measured efficiency and LabSOCS efficiency for different point sources, and the tolerance is about 6% at middle and high energy range. For cylinder samples of dirt, animal ash and plant ash , the results of verification is 7%～10%.