X-ray Imaging Techniques in Diagnostic Radiology Conventional Film-screen Xeroradiography

We presume that the reader understands conventional radiography in which photographic methods capture radiographic images. Typically, a patient is positioned between an x-ray source and a film/screen cassette. The cassette contains an intensifying screen which, when exposed to radiation, emits light which exposes a photographic emulsion. The photographic film can be developed to provide an image to the observer. Traditionally, this is how radiographic images were obtained, and while many radiology departments still use conventional film-screen systems many have converted to digital imaging.