A device equipped with a fluorescent screen on which the internal structures of an optically opaque object, such as the human body, may be continuously viewed as shadowy images formed by the differential transmission of x-rays through the object.

• 荧光检查仪一种用于观察不透明物体的带有荧光屏幕的设备，例如人体的内部结构，可通过X光透过物体时的不同传送在屏幕上投下的阴影观察