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为了解我市医用透视Ｘ射线机防护性能 ,我们于 1998年起对我市 113个单位 12 2台Ｘ射线透视机进行现场监测调查。1 调查内容和监测方法1 1 内容 透视Ｘ射线机一般情况 :医院类型 ,Ｘ射线机产地、出厂年代、容量等。防护性能 :立卧位透视防护测试平面及有用线束空气照射量率
In order to understand the protective performance of medical X-ray machines in our city, we have conducted on-site monitoring surveys of 122 X-ray machines from 113 units in our city since 1998. 1 Survey contents and monitoring methods 1 1 General perspective X-ray machines: Types of hospitals, origins of X-ray machines, year of manufacture, and capacity. Protective performance :Retro-position perspective test plane and useful beam air exposure rate