High contrast visually adaptive radiographic film and imaging assembly for thoracic imaging

High performance, very high contrast radiographic films exhibit visually adaptive contrast when imaged in radiographic imaging assemblies comprising intensifying screens. These films having at least two tabular silver halide emulsions on each side of a film support, and the emulsion closest to the f...

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Bibliographische Detailangaben
Hauptverfasser: DICKERSON ROBERT E, BUNCH PHILLIP C
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:High performance, very high contrast radiographic films exhibit visually adaptive contrast when imaged in radiographic imaging assemblies comprising intensifying screens. These films having at least two tabular silver halide emulsions on each side of a film support, and the emulsion closest to the film support on each side includes chemistry to control crossover and a rhodium dopant and has higher photographic speeds than the other emulsions. In addition, the films can be rapidly processed to provide images having a peak gamma >3.1 while maintaining gammas >1.0 out into the toe of a D vs. logE sensitometric curve to a value of -0.9 logE. These films are particularly useful for thoracic imaging.