| 摘要 |
A radiation-sensitive medical diagnostic film for soft tissue imaging, particularly mammography, is disclosed. The film allows more rapid processing than films currently available for mammographic imaging and maintains acceptably high levels of image sharpness and low levels of mottle. The radiographic film records medical diagnostic images of soft tissue through (a) exposure by a single intensifying screen located to receive an image bearing source of X-radiation and (b) processing, including development, fixing and drying, in 90 seconds or less comprised of a film support transparent to radiation emitted by the intensifying screen and having opposed front and back major faces and an image-forming portion for providing, when imagewise exposed by the intensifying screen and processed, an average contrast in the range of from 2.5 to 3.5, measured over a density above fog of from 0.25 to 2.5.
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