High-contrast X-ray image detecting apparatus

Details High-contrast X-ray image detecting apparatus High-contrast X-ray image detecting apparatus

1986-10-08

1988-08-02

Fields, Carolyn E.

X-ray or gamma ray systems or devices

Electronic circuit

Exposure timer

378146, 378147, G01N 2300, H05G 164

Patent

active

047618027

ABSTRACT:
An X-ray image detecting apparatus devised so as to project an X-ray image of an object on a image receiving plane made of two-dimensionally arrayed picture elements with the object irradiated by many thin scanning X-ray beams. The beams, which penetrate the object, scan coincidentally a limited number of the picture elements of which they take a charge respectively, causing the time of scanning the whole area of the image receiving plane to be short. The image signals successively outputted from the picture elements are stored in a memory with only their respective maximum values selected. Thus, the image signals are made free from being adversely affected by the stray X-rays scattered from the inside of the object, and provide a high-contrast X-ray image.

REFERENCES:
patent: 4096391 (1978-06-01), Barnes
patent: 4383327 (1983-05-01), Kruger
patent: 4433427 (1984-02-01), Barnea
patent: 4493098 (1985-01-01), Riihimaki et al.

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