γ射线能谱分析中的晶体修圆及效率转移方法
Crystal rounding and the efficiency transfer method in gamma-ray spectrometry.
作者信息
Vidmar Tim, Gasparro Joël
机构信息
European Commission, Joint Research Centre, Institute for Reference Materials and Measurements, Geel, Belgium.
出版信息
Appl Radiat Isot. 2009 Nov;67(11):2057-61. doi: 10.1016/j.apradiso.2009.07.015. Epub 2009 Aug 3.
The effect of failing to properly model the rounding of the crystal edges in the application of the efficiency transfer method to the measurement of environmental samples is investigated for coaxial and thick planar (BeGe) HPGe detectors. It is found that for lower energies proper modelling of the crystal rounding is necessary to achieve the accuracy of the computed efficiency usually required in this type of measurements.
针对同轴和厚平面（BeGe）高纯锗探测器，研究了在将效率转移方法应用于环境样品测量时，未能正确模拟晶体边缘圆角的影响。结果发现，对于较低能量，为达到此类测量通常所需的计算效率精度，对晶体圆角进行正确建模是必要的。
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