文章介绍了本实验室用于校准测量环境剂量仪表的参考辐射、不同位置替代法及所涉及的一些问题。结果表明,在考虑了空气吸收和散射辐射影响后,用这种参考辐射和方法校准测量环境X,Υ剂量仪表总不确定度,对于低能光子(<300keV)为±2.5%,对于~(137)Cs和~(60)Co的Υ射线为±15%。 This article describes the reference radiation, different location substitution methods and some of the problems involved in the calibration of dosimeters used in the measurement environment in our laboratory. The results show that using this reference radiation and method to calibrate the total uncertainty of the dosimeters in the measuring environment X, Y after taking into account the effects of air absorption and scattered radiation, ± 2.5% for low energy photons (<300 keV) and ~ (137 ) The γ ray of Cs and ~ (60) Co is ± 15%.