X-ray or gamma ray systems or devices – Electronic circuit – With display or signaling
Patent
1997-02-24
1998-05-26
Porta, David P.
X-ray or gamma ray systems or devices
Electronic circuit
With display or signaling
378 988, 25037807, H05G 164
Patent
active
057578842
ABSTRACT:
An X-ray diagnostic installation has a high-voltage generator for an X-ray tube for generating an X-ray beam, and an X-ray image transducer formed by a scintillator layer, a semiconductor layer with light-sensitive pixel elements arranged in a matrix, and an array of light-sensitive elements arranged in a matrix behind the semiconductor layer in the beam propagation direction. At least a part of the light-sensitive elements in the array acquires the X-ray dose as a detector, to which a measurement transducer is connected for controlling the high-voltage generator. The light-sensitive elements in the array can be light-emitting diodes for resetting residual charges of the pixel elements in the semiconductor by illumination of the image transducer. Individual light-emitting diodes in the array can be connected to the measurement transducer during the X-ray irradiation as a detector for acquiring the X-ray dose and a remainder of the light-sensitive elements in the array or can be small photodiodes arranged in a matrix with the light-emitting diodes.
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Porta David P.
Siemens Aktiengesellschaft
LandOfFree
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