Patent ID: 6794105
Filing Date: 2004-09-21
Classification: G03C,Y10S

Abstract:
A radiographic silver halide film that comprises a support having first and second major surfaces and that is capable of transmitting X-radiation,said radiographic silver halide film having disposed on said first major support surface, one or more hydrophilic colloid layers including at least one silver halide emulsion layer, and on said second major support surface, one or more hydrophilic colloid layers including at least one silver halide emulsion layer, at least one of said silver halide emulsion layers comprising cubic silver halide grains that have the same or different composition and comprise at least 5 mol % chloride, and no more than 1 mol % silver iodide, based on total silver in the emulsion, at least one of said cubic grain silver halide emulsion layers comprising a combination of first and second spectral sensitizing dyes that provides a combined maximum J-aggregate absorption on said cubic silver halide grains of from about 540 to about 560 nm, and wherein said first spectral sensitizing dye is an anionic benzimidazole-benzoxazole carbocyanine, said second spectral sensitizing dye is an anionic oxycarbocyanine, said first and second spectral sensitizing dyes are present in a molar ratio of from about 0.25:1 to about 4:1.