Preparation of silver halide grains

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

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430567, G03C 1015

Patent

active

052408256

ABSTRACT:
The present invention relates to a process of preparing radiation sensitive silver halide grains containing at least 90 mole % silver iodide and having a morphological configuration of four hexagonal bipyramids each with bases joined to form a common tetrahedron. With this process, the hexagonal bipyramid portion of the grains can be elongated and/or truncated. In addition, the fraction of silver halide grains which have a configuration of four hexagonal bipyramids is increased.

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