Silver halide photographic emulsion

Details Silver halide photographic emulsion Silver halide photographic emulsion

1992-12-11

1994-03-01

Wu, Shean

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430569, 430604, 430605, G03C 1005, G03C 106

Patent

active

H00012947

ABSTRACT:
A photographic silver halide emulsion comprising silver chlorobromide grains containing at least 80 mol % silver chloride or silver chloride grains is disclosed, wherein tabular grains having a thickness of less than 0.5 .mu.m, a diameter of at least 0.5 .mu.m and an aspect ratio of at least 2/1 account for at least 50% of the total projected area of the silver halide grains, and the tabular grains are formed in the presence of a compound of metal belonging to Group VIII of the Periodic Table. The high silver chloride content emulsion has a sensitivity as high as that of a silver iodobromide emulsion.

REFERENCES:
patent: 2448060 (1948-08-01), Smith et al.
patent: 4783398 (1988-11-01), Takada et al.
patent: 4952491 (1990-08-01), Nishikawa et al.
patent: 5057402 (1991-10-01), Shiba et al.
patent: 5166044 (1992-11-01), Asami

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