SCREEN FILM SYSTEMS, X RAY
\skɹˈiːn fˈɪlm sˈɪstəmz], \skɹˈiːn fˈɪlm sˈɪstəmz], \s_k_ɹ_ˈiː_n f_ˈɪ_l_m s_ˈɪ_s_t_ə_m_z]\
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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.
By DataStellar Co., Ltd
Word of the day
Snake's-head
- Guinea-hen flower; -- so called in England because its spotted petals resemble the scales of a snake's head.
Nearby Words
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- Screen Film Systems, X Ray
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