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X ray film screen system
[ˈɛks ɹˈe͡ɪ fˈɪlm skɹˈiːn sˈɪstəm], [ˈɛks ɹˈeɪ fˈɪlm skɹˈiːn sˈɪstəm], [ˈɛ_k_s ɹ_ˈeɪ f_ˈɪ_l_m s_k_ɹ_ˈiː_n s_ˈɪ_s_t_ə_m]
Definitions of X Ray Film Screen System
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.