X-ray apparatus having an adjustable primary radiation diaphragm

Details X-ray apparatus having an adjustable primary radiation diaphragm X-ray apparatus having an adjustable primary radiation diaphragm

1995-01-12

1996-10-08

Porta, David P.

X-ray or gamma ray systems or devices

Beam control

Collimator

378152, 378206, G01N 2304

Patent

active

055639240

ABSTRACT:
An x-ray apparatus is provided which allows the diaphragm aperture and the diaphragm position to be precisely identified in a simple manner. For this purpose, a radiation imaging system is provided which produces an image of the aperture of the primary diaphragm on a radiation-electrical transducer, the radiation-electrical transducer on which the aperture is imaged being separate from the radiation detector on which the complete diagnostics image is produced. The radiation-electrical transducer is followed by evaluation electronics for forming electrical signals corresponding to the diaphragm aperture size and position.

REFERENCES:
patent: 1976179 (1931-04-01), Mannl
patent: 4277684 (1981-07-01), Carson
patent: 4672212 (1987-06-01), Brahme
patent: 4817125 (1989-03-01), Sklebitz
patent: 4882741 (1989-11-01), Brown
patent: 4891833 (1990-01-01), Bernardi
patent: 5136627 (1992-08-01), Conrads et al.
patent: 5299250 (1994-03-01), Styrnol et al.
Patents Abstracts of Japan, P-386 Sep. 7, 1985, vol. 9/No. 221, Application No. 58-190292.

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