目前,县级以上的医院国家都给配备了300—800毫安不等的X光机,照像床上均有活动滤线器,但是固定滤线器或带有滤线器的暗盒在我区县少见或没有。 滤线器为减少散乱射线,提高影像质量是最有效的工具。最常见的有平板型、方格型,同时又可分为活动,固定滤线器两种,前者紧连于一移动机械装置,即为活动滤线器,大家应该注意向焦点平板滤线器的铅 At present, hospital countries above the county level are equipped with X-ray machines ranging from 300 to 800 milliamps. There are active filter lines on the photo beds, but fixed filter or cassette with filter is in our district. Counties are rare or not. The filter is the most effective tool to reduce scattered rays and improve image quality. The most common are flat type, square type, but also can be divided into activities, fixed two kinds of filter device, the former is closely connected to a mobile mechanical device, which is the active filter device, we should pay attention to the focus plate filter Lead