Light-sensitive silver halide X-ray photographic material contai

Details Light-sensitive silver halide X-ray photographic material contai Light-sensitive silver halide X-ray photographic material contai

1994-10-17

1995-11-28

Baxter, Janet C.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430571, 430966, G03C 1035, G03C 516

Patent

active

054707005

ABSTRACT:
Disclosed is a light-sensitive silver halide X-ray photographic material comprising a mixture of tabular silver halide grains, wherein tabular silver halide grains of 0.6 .mu.m to 1.5 .mu.m in an average grain size are contained in a proportion of 70% to 95% and of 0.3 .mu.m to 0.5 .mu.m in a proportion of 5% to 30%; the aspect ratio of tabular grains is more than 3; and having sensitometric properties in which a gamma (.gamma.1) formed by a straight line portion between two points 0.5 and 1.5 of optical density is 2.7 to 3.3 and a gamma (.gamma.2) formed by a straight line portion between points 2.0 ana 3.0 of optical density is 1.5 to 2.5 in the characteristic curve of a rectangular coordinate system having equal coordinate axis unit lengths for the optical density (D) and the amount of exposure (log E). A light-sensitive silver halide X-ray photographic material according to this invention has a superior diagonostic performance, and is improved in sharpness and graininess and also improved in pressure resistance.

REFERENCES:
patent: 4731322 (1988-03-01), Suzuki et al.
patent: 4997750 (1991-03-01), Dickerson et al.

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