X-Ray Intensifying Screens

**Definition:** 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.

**Tree numbers:** - E07.970

**Synonyms:** - Radiographic Intensifying Screens - Film-Screen Systems, X-Ray - Screens, Radiographic Intensifying - X-Ray Film-Screen Systems - Xray Intensifying Screens - Screen-Film Systems, X-Ray