医用CT机(X射线)辐射源检定装置的技术改造

Technical transformation of(X-ray)radiation source verification device of medical CT machine

依据国家计量检定规程JJG 961-2017《医用诊断螺旋计算机断层摄影装置(CT)X射线辐射源》,对医用CT机(X射线)辐射源检定装置进行技术改造。更新计量标准器以及主要配套设备,以减小装置的不确定度,提高测量结果的准确性和工作效率。技术改造后医用CT机(X射线)辐射源检定装置满足国家计量检定规程对计量标准的技术要求,达到预期的目标。

In this paper,according to the national verification regulation JJG 961-2017 Medical Diagnostic X-ray Radiation Source for Spiral Computed Tomography(CT),the X-ray radiation source verification device of medical CT machine was reformed.The measurement standard device and the main supporting equipment were updated,so as to reduce the uncertainty of the device and improve the accuracy and efficiency of the measurement results.After technical transformation,the(Xray)radiation source verification device of medical CT machine meets the technical requirements of national metrological verification regulations on measurement standards and achieves the expected goal.