Silver halide photographic emulsion materials

Details Silver halide photographic emulsion materials Silver halide photographic emulsion materials

1992-08-18

1994-04-26

Baxter, Janet C.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430569, G03C 1035

Patent

active

053066111

ABSTRACT:
A novel photographic silver halide emulsion is disclosed, which is useful in a color photographic silver halide material to provide improvements in image quality, storage stability and pressure resistance. The photographic silver halide emulsion comprises silver halide twinned crystal grains each having a ratio of grain diameter to grain thickness of 5 or less which amount to 50% or more by projection area of total grains, wherein X-ray diffraction pattern of the twinned crystal grains with Cu-K.alpha. ray as a radiation source has a (420) diffraction signal having a single peak; and the width of the peak at a height of 0.13 times the maximum peak height, based on the signal intensity, is 1.5 degree or less in a diffraction angle, 2.theta..

REFERENCES:
patent: 4797354 (1989-01-01), Saitou et al.
patent: 4798775 (1989-01-01), Yagi et al.
patent: 4963467 (1990-10-01), Ishikawa et al.
patent: 5017469 (1991-05-01), Mowforth et al.

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