Patent ID: 6482563
Filing Date: 2002-11-19
Classification: G03C,Y10S

Abstract:
A radiographic imaging assembly comprising the following components arranged in association, in order:(a) a first fluorescent intensifying screen, (b) a first radiographic silver halide film, (c) a second radiographic silver halide film, and (d) a second fluorescent intensifying screen, said first radiographic silver halide film comprising a support having first and second major surfaces and is capable of transmitting X-radiation, said first 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, each of said silver halide emulsion layers comprising silver halide cubic grains that have the same or different composition in each silver halide emulsion layer, and all hydrophilic layers of said first radiographic silver halide film being fully forehardened and wet processing solution permeable for image formation within 45 seconds, said second radiographic silver halide film comprising a support having first and second major surfaces and is capable of transmitting X-radiation, said second 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, each of said silver halide emulsion layers comprising silver halide cubic grains that have the same or different composition in each silver halide emulsion layer, and all hydrophilic layers of said second radiographic silver halide film being fully forehardened and wet processing solution permeable for image formation within 45 seconds, and disposed between either said first fluorescent intensifying screen and said first radiographic silver halide film, or between said second fluorescent intensifying screen and said second radiographic silver halide film, a transparent neutral density filter having a density of at least 0.3.