Patent ID: 6686115
Filing Date: 2004-02-03
Classification: G03C,Y10S

Abstract:
A blue-sensitive, radiographic silver halide film comprising a support having first and second major surfaces,said radiographic silver halide film having disposed on said first major support surface, one or more hydrophilic colloid layers including a first silver halide emulsion layer, and on the second major support surface, one or more hydrophilic colloid layers including a second silver halide emulsion layer, said first silver halide emulsion layer comprising predominantly tabular silver halide grains that have an aspect ratio of at least 15, a grain thickness of at least 0.1 &mgr;m, and comprise at least 90 mol % bromide and from about 0.5 to about 2.75 mol % iodide, based on total silver halide, substantially all of said iodide being present in an internal localized portion of said tabular silver halide grains that excludes the surface of said grains, wherein said tabular silver halide grains in said first silver halide emulsion layer are dispersed in a hydrophilic polymeric vehicle mixture comprising at least 0.5% of oxidized gelatin, based on the total dry weight of said polymeric vehicle mixture, and wherein said first silver halide emulsion layer further comprises a mercapto-substituted benzothiazole, benzoxazole, or benzimidazole in an amount of at least 0.3 mmole per mole of silver in said silver halide emulsion layer.