遮光器的使用与改造刘志星，周梦奕，叶凤萍，胡寅进遮光器的前身是集光筒，它是作为一种投照设备而普遍用于临床Ｘ射线照片的。我们感到遮光器不仅是投照设备，还是一种ｘ射线防护设备，也就是说，使用时要严格控制照射野，使照射野不大于诊断野。把遮光器当作防护设备使... Shutter use and modification Liu Zhixing, Zhou Mengyi, Ye Fengping, Hu Yinjin shutter is the predecessor of light-collecting cylinder, which is used as a projection device and widely used in clinical X-ray photos. We feel that the shutter is not only a projection device, but also an x-ray protection device. In other words, it is necessary to strictly control the irradiation field so that the irradiation field is not larger than the diagnostic field. Shutter as protective equipment ...