Core/shell silver halide photographic emulsion and method for pr

Details Core/shell silver halide photographic emulsion and method for pr Core/shell silver halide photographic emulsion and method for pr

1985-01-10

1987-12-15

Schilling, Richard L.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430569, G03C 102

Patent

active

047133180

ABSTRACT:
A silver halide photographic emulsion and a method for production thereof are described, said emulsion comprising silver halide grains which are comprised of silver iodobromide and have a multilayer structure formed from a core and at least one covering layer and an aspect ratio below 5, said silver halide grains being chemically sensitized and having a halogen composition such that the difference in average iodide content beween adjacent layers, each of which has a substantially homogeneous iodide distribution, is not less than 10 mol %, and the iodide content in the outermost layer is not more than 40 mol %.

REFERENCES:
patent: 3935014 (1976-01-01), Klotzer et al.
patent: 4210450 (1980-07-01), Corben
patent: 4444877 (1984-04-01), Koitabashi et al.
patent: 4477564 (1984-10-01), Cellone et al.
patent: 4614711 (1986-09-01), Sugimoto et al.
Hirsch "Photographic Emulsion Grains with Cores", Journal of Photo Science, vol. 10, 1962, pp. 129-146.

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