Image intensifier or image intensifier tube is a vacuum device used to increase the available light intensity in optical system. It can operate in a weak light environment to facilitate visual imaging. Materials in X-ray (X-ray image intensifier) or materials used to convert non-visible light into visible light. They operate by converting photons into electrons, amplifying electrons, and then converting amplified electrons back into photons for observation.
X-ray image intensifier is an image intensifier, which converts X-ray into visible light. This intensifier is used in X-ray imaging systems (such as fluorescent mirrors) to allow low-intensity X-rays to be converted into high-brightness visible light output. The device consists of a low absorption/scattering input window, usually aluminum, input screen, photocathode, electronic optics, output screen and output window. These components are installed in high vacuum glass. Through its enhancement effect, it makes it easier for the observer to see the structure of the object being imaged than a single screen.