将蒙特卡罗效率转移方法应用于高纯锗探测器以用于环境样品测量。
Application of the Monte Carlo efficiency transfer method to an HPGe detector with the purpose of environmental samples measurement.
作者信息
Morera-Gómez Yasser, Cartas-Aguila Héctor A, Alonso-Hernández Carlos M, Bernal-Castillo Jose L, Guillén-Arruebarrena Aniel
机构信息
Centro de Estudios Ambientales de Cienfuegos, AP 5. Ciudad Nuclear, CP 59350 Cienfuegos, Cuba.
Centro de Estudios Ambientales de Cienfuegos, AP 5. Ciudad Nuclear, CP 59350 Cienfuegos, Cuba.
出版信息
Appl Radiat Isot. 2015 Mar;97:59-62. doi: 10.1016/j.apradiso.2014.12.013. Epub 2014 Dec 17.
Monte Carlo efficiency transfer method was used to determine the full energy peak efficiency of a coaxial n-type HPGe detector. The efficiencies calibration curves for three Certificate Reference Materials were determined by efficiency transfer using a (152)Eu reference source. The efficiency values obtained after efficiency transfer were used to calculate the activity concentration of the radionuclides detected in the three materials, which were measured in a low-background gamma spectrometry system. Reported and calculated activity concentration show a good agreement with mean deviations of 5%, which is satisfactory for environmental samples measurement.
采用蒙特卡罗效率转移法测定同轴n型高纯锗探测器的全能峰效率。使用（152）Eu参考源通过效率转移确定了三种有证标准物质的效率校准曲线。效率转移后获得的效率值用于计算在低本底γ能谱系统中测量的三种物质中检测到的放射性核素的活度浓度。报告的和计算的活度浓度显示出良好的一致性，平均偏差为5%，这对于环境样品测量来说是令人满意的。
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