Enhancement system and method for X-ray imaging

X-ray or gamma ray systems or devices – Specific application – Absorption

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Details

378167, 378185, G03B 4204

Patent

active

049378473

ABSTRACT:
A method and system are disclosed for producing a photographic image of an X-ray pattern, including the following steps: converting the X-ray pattern to a first pattern of light; exposing a photographic film to said first pattern of light; detecting the light at elemental regions of the first pattern; generating a second pattern of light in a pattern which depends on the detected light; and exposing the photographic film to the second pattern of light. The generating of the second pattern of light includes generating light from a one-dimensional array of light emitters, and moving the array with respect to the photographic film. The disclosed invention provides improvement on the standard radiographic method in the following ways: (1) The recorded film contrast in low X-ray exposure regions that ordinarily would have been recorded in under-exposed regions on a film's characteristic curve will be increased significantly. (2) The overall range of light transmission that must be viewed by the radiologist will be decreased without sacrificing diagnostic information.

REFERENCES:
patent: 2120908 (1938-06-01), Raney
patent: 2640160 (1950-11-01), Collins et al.
patent: 4179100 (1977-08-01), Sashin et al.
patent: 4350889 (1982-09-01), Lisnyansky

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