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一、引言医用CTX射线辐射源作为临床广泛应用的医疗诊断设备,已被列入国家强制检定计量器具目录。剂量计是CT检定规程中要求使用的主要标准器,是测量和评价CT剂量指数的主要设备,其示值准确性直接关系到CT剂量数值的准确度和广大患者的身体健康,因此对剂量计的期间核查意义尤其重大。比对验证是剂量计常用的期间核查方法。现给出利用2台不
First, the introduction of medical CTX radiation source as a widely used clinical diagnostic medical equipment, has been included in the national compulsory testing instruments directory. The dosimeter is the main standard instrument required by the CT verification protocol. It is the main equipment for measuring and evaluating the CT dose index. The accuracy of the indication value is directly related to the accuracy of the CT dose value and the general patient’s health. Therefore, the dosimeter The verification period is particularly significant. Verification of the comparison is the common method used to check dosimeters. It is given to use two do not