X-ray image intensifier

An X-ray image intensifier (XRII) refers to a special image intensifierdevice used in medical imaginginvolving x rays. It consists of an input window, input phosphor, photocathode, vacuum and electronoptics, output phosphor and output window. It allows for lower x-ray doses to be used on patients by magnifying the intensity produced in the output image, enabling the viewer to easily see the structure of the object being imaged.

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It uses material from the http://en.wikipedia.org/wiki/X-ray+image+intensifier Wikipedia article X-ray image intensifier.