Tabular grain emulsions containing a restricted high iodide surf

Details Tabular grain emulsions containing a restricted high iodide surf Tabular grain emulsions containing a restricted high iodide surf

1996-03-22

1997-02-18

Huff, Mark F.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430570, 430604, 430605, G03C 1035

Patent

active

056040865

ABSTRACT:
A photographic emulsion is disclosed comprised of a dispersing medium and radiation-sensitive silver halide grains with greater than 50 percent of total grain projected area being accounted for by grains containing a host portion of a face centered cubic rock salt crystal lattice structure and a first epitaxial phase containing greater than 90 mole percent iodide. The host portion is tabular, being bounded by an exterior having first and second parallel major faces joined by a peripheral edge. The first epitaxial phase accounts for less than 60 percent of total silver, and the first epitaxial phase is restricted to a portion of the exterior of the host portion that includes at least 15 percent of the major faces.

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