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辐射剂量的毫安秒线性是表现医用诊断X射线辐射源设备性能的一个重要参量,管电流与曝光时间直接影响辐射剂量的大小。JJG744-2004《医用诊断X射线辐射源检定规程》仅检测相邻两点毫安秒的线性,对管电流与曝光时间后续检定均不检测。JJG1078-2012《医用数字摄影(CR、DR)系统X射线辐射源检定规程》中对线性、管电流与曝光时间均未作要求。笔者认为不妥。实际上,在考虑检测方法实施的方便性与准确度,采用归一化线性处理方法评价
The milli-sec linearity of the radiation dose is an important parameter for the performance of medical diagnostic X-ray radiation source equipment. The tube current and the exposure time directly affect the radiation dose size. JJG744-2004 “medical diagnostic X-ray radiation source test procedures” only detects the linearity of milliseconds at two adjacent points, the tube current and exposure time follow-up test are not detected. JJG1078-2012 “medical digital photography (CR, DR) system X-ray radiation source verification procedures” on the linear, tube current and exposure time are not required. I think wrong. In fact, taking into account the convenience and accuracy of the detection method implementation, using the normalized linear processing method evaluation