Patent ID: 7005226
Filing Date: 2006-02-28
Classification: G03C,Y10S

Abstract:
1. A radiographic imaging assembly that has a system speed of at least 200 but less than 800 and comprises: A) a symmetric radiographic silver halide film having a film speed of at least 700 and comprising a support that has first and second major surfaces, said radiographic silver halide film having disposed on said first major support surface, two or more hydrophilic colloid layers including first and second silver halide emulsion layers, and having on said second major support surface, two or more hydrophilic colloid layers including third and fourth silver halide emulsion layers, said first and third silver halide emulsion layers being the outermost emulsion layers on their respective sides of said support, said second and fourth silver halide emulsion layers comprising a crossover control agent sufficient to reduce crossover to less than 15%, and B) a fluorescent intensifying screen arranged on each side of said radiographic silver halide film, the pair of screens having a screen speed of at least 150 and said screens having an average screen sharpness measurement (SSM) value greater than reference Curve A of wherein each of said first, second, third, and fourth silver halide emulsion layers comprise tabular silver halide grains that are dispersed in a hydrophilic polymeric vehicle mixture comprising at least 0.05% of oxidized gelatin, based on the total dry weight of said hydrophilic polymeric vehicle mixture.