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γ谱仪就地测量方法已在辐射防护及环境保护中得到广泛应用,准确刻度是谱仪应用的关键技术。ISOCS无源刻度方法是基于点源刻度技术和蒙卡模拟计算而开发的放射性测量设备的刻度技术,近年来在国际上得到了很多专业机构的认可,但在国家标准和行业标准中还没被认可。文中通过在圆柱体模型上实测的方法验证了ISOCS无源效率刻度的可靠性。
γ spectrometer in situ measurement methods have been widely used in radiation protection and environmental protection, accurate scale is the key technology of spectrometer. The ISOCS passive calibration method is a calibration technique of radiometric measurement equipment developed based on point source calibration and Monte Carlo simulation. In recent years, ISOCS passive calibration has been approved by many professional organizations in the world, but has not been accepted by national standards and industry standards Recognized. In this paper, the reliability of ISOCS passive efficiency calibration is verified by the actual measurement on cylindrical model.