Visually adaptive radiographic film and imaging assembly

摘要

High performance radiographic films exhibit visually adaptive contrast when imaged in radiographic imaging assemblies comprising an intensifying screen on both sides. These films having a single silver halide emulsion on each side of a film support and are free of particulate dyes that are conventionally used to control crossover. In addition, the films can be rapidly processed to provide the desired image having visually adaptive contrast, that is the upper scale contrast is at least 1.5 times the lower scale contrast. Thus, dense objects can be better seen at the higher densities of the radiographic image without any adverse sensitometric changes in the lower scale densities. These films are useful for general-purpose radiographic imaging using a wide variety of exposure and processing conditions.