根据国家医用诊断X线卫生防护标准（GB8279－87）．医用诊断X线摄影使用单位应采用防护厚度为0．5mm铅当量的各种摄影防护设施，通常的做法是将控制台设置在屏蔽室内执行调机并把光。因此，对工作人员来说．屏蔽室防护效果的好坏决定了操作者的受照剂量大小。本文就岳阳地区159 According to the national medical diagnostic X-ray health protection standards (GB8279-87). Medical diagnostic X-ray photography unit should be used to protect the thickness of 0.5mm lead equivalent of various photographic protective equipment, the usual practice is to set the console in the shielded room to perform the transfer machine and the light. So for the staff. Shielding room protective effect of the quality of the operator’s exposure dose size. This article on Yueyang area 159