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辐射剂量监测仪器校准中必不可少的是辐射源以提供必要的参考辐射场,根据GB12162.1—2000《用于校准剂量仪和剂量率仪及确定其能量响应的X和γ参考辐射:第1部分:辐射特性及产生方法》等相关标准要求,在计量标准实验室内需要采用不同活度的同位素放射源(60Co、137Cs和241Am等)以建立多种参考辐射。单源照射装置准直以后产生散射辐射不大于5%的参考辐射用
Radiation dose monitoring instrument calibration is essential for the radiation source to provide the necessary reference radiation field, according to GB12162.1-2000 “for calibration dosimeters and dose rate meter and determine its energy response of the X and γ reference radiation: the first 1 Part: Radiation Characteristics and Methods of Production ”and other relevant standards require that isotope sources of different activity (60Co, 137Cs and 241Am, etc.) be used in the measurement standard laboratory to establish a variety of reference radiation. Single-source irradiation device after collimation to produce scattered radiation not more than 5% of the reference radiation