放射防护 环境和区域监测仪器的低剂量率校准

[中文适用范围]： 本文件规定了在实验室条件下，用于环境和区域监测X 射线和伽马射线的剂量计相对于国际辐射单位和测量委员会 (ICRU)[1] 的操作量的校准方法。本文件将 ISO 4037-1 的剂量率范围扩展至 1.0 µSv·h−1 以下。描述了这些校准方法的具体不确定度分量。本文件还规定了有源区域剂量计的日常检查方法。日常检查不是校准，也不能代替校准，但它是一种简单有效的方法，可以定期验证设备性能在校准后是否持续保持以及校准是否仍然有效。本文件不涉及基于光谱仪的环境剂量计和被动剂量计校准的特殊要求。 [外文原描述]： This document specifies the calibration methods under laboratory conditions for dosemeters used for environmental and area monitoring of X and gamma-rays with respect to the operational quantities of the International Commission on Radiation Units and Measurements (ICRU) [ 1 ] . This document extends the dose rate range of ISO 4037 - 1 below 1,0 µSv·h −1 . The specific uncertainty components are described for these calibration methods. This document also specifies the method for routine checking of active area dosemeters. Routine checking is not a calibration, nor does it replace a calibration, but it is a simple and effective method to routinely verify that the performance of the equipment is continuously maintained after calibration and that the calibration is still valid. This document does not deal with the special requirements for the calibration of spectrometer-based environmental dosemeters and passive dosemeters.