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| X-Ray Intensifying Screens Film-Screen Systems, X-Ray | Radiographic Intensifying Screens | Screen-Film Systems, X-Ray | X-Ray Film-Screen Systems | Screens, Radiographic Intensifying | Xray Intensifying Screens | Film Screen Systems, X Ray | Film-Screen System, X-Ray Screens which absorb the energy in the x-ray beam that has penetrated the patient and convert this energy into a light pattern which has as nearly as possible the same information as the original x-ray beam. The more light a screen produces for a given input of x-radiation, the less x-ray exposure and thus shorter exposure time are needed to expose the film. In most film-screen systems, the film is sandwiched between two screens in a cassette so that the emulsion on each side is exposed to the light from its contiguous screen. |