X-ray or gamma ray systems or devices – Electronic circuit – Exposure timer
Patent
1990-07-27
1991-09-10
Church, Craig E.
X-ray or gamma ray systems or devices
Electronic circuit
Exposure timer
378156, H05G 164
Patent
active
050480677
ABSTRACT:
An x-ray diagnostics installation has an x-ray source fed by a high voltage supply, an x-ray image intensifier video chain for generating stored video signals of an exposure without a patient present in the x-ray beam, and a calculating stage connected to the memories. A filter is disposed in the path of the x-ray beam. The calculating stage is connected to the video chain and to the high voltage supply and calculates actual attenuation values of an x-ray exposure with the filter inserted in the x-ray beam.
REFERENCES:
patent: 4672652 (1987-06-01), Huttenrauch et al.
Church Craig E.
Siemens Aktiengesellschaft
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