Direct-positive silver halide emulsion

Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Silver compound sensitizer containing

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430568, 430597, 430412, G03C 1485

Patent

active

048142638

ABSTRACT:
A direct-positive silver halide emulsion comprising fine grain reduction and gold surface fogged silver halide grains containing an electron-trapping effective amount of at least one Group VIII metal dopant, at least 75% by weight of all silver halide grains in said emulsion being silver halide grains wherein at least 80 mole percent of the halide within said grains is chloride.

REFERENCES:
patent: 3367778 (1968-02-01), Berriman
patent: 3661592 (1972-05-01), Philippaerts et al.
patent: 3847617 (1974-11-01), Philippaerts et al.
patent: 3869290 (1975-03-01), Philippaerts et al.
patent: 4008089 (1977-02-01), Pattyn et al.
patent: 4082554 (1978-04-01), Pattyn et al.
patent: 4495274 (1985-01-01), Yoshida
patent: 4581327 (1986-04-01), Habu et al.

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