Silver halide emulsion, preparation method thereof and silver ha

Details Silver halide emulsion, preparation method thereof and silver ha Silver halide emulsion, preparation method thereof and silver ha

1999-04-26

2000-06-27

Huff, Mark F.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430569, 430603, G03C 1035, G03C 1015, G03C 109

Patent

active

060805374

ABSTRACT:
A silver halide emulsion is disclosed, comprising a dispersing medium and silver halide grains having a variation coefficient of grain size distribution of not more than 20%, at least 50% of total grain projected area of the emulsion being accounted for by tabular grains an aspect ratio of at least 5, the tabular grains each having a surface region having an iodide content more than an average iodide content of the grains, the tabular grains having dislocation lines in a central region and a peripheral region of the major faces, the peripheral region having a silver chalcogenide nucleus-containing phase, the central region having silver nucleus-containing phase, and the peripheral region having at least 10 dislocation lines per grain.

REFERENCES:
patent: 5238796 (1993-08-01), Maruyama et al.
patent: 5399471 (1995-03-01), Murai
patent: 5498516 (1996-03-01), Kikuchi et al.
patent: 5807663 (1998-09-01), Funakubo et al.

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