Internal latent image core/shell silver halide photographic emul

Details Internal latent image core/shell silver halide photographic emul Internal latent image core/shell silver halide photographic emul

1984-11-16

1986-04-08

Downey, Mary F.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430409, 430599, 430600, 430603, 430604, 430605, 430627, 430630, 430940, G03C 102, G03C 106

Patent

active

045813280

ABSTRACT:
An internal latent image core/shell silver halide photographic emulsion containing core/shell silver halide grains is disclosed, the grains comprising a silver halide core which is doped with a metal ion or chemically sensitized or is both doped with a metal ion and chemically sensitized, and a silver halide shell which covers at least a sensitivity speck of the core, wherein both added iodine ion and a polymer having a specific repeating unit described in the specification are present on the surface of the core/shell silver halide grains. The emulsion has a high sensitivity even without chemical sensitization of the surface of core/shell silver halide grains.

REFERENCES:
patent: 3006762 (1961-10-01), Dersch
patent: 3850637 (1974-11-01), Evans
patent: 4431730 (1984-02-01), Urabe et al.
patent: 4431731 (1984-02-01), Sugimoto et al.

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