X-ray or gamma ray systems or devices – Electronic circuit – Exposure timer
Patent
1985-05-15
1987-03-10
Church, Craig E.
X-ray or gamma ray systems or devices
Electronic circuit
Exposure timer
378108, G03B 4116
Patent
active
046495584
ABSTRACT:
In an exemplary embodiment including a dose rate control device for fluoroscopy and an automatic control for x-ray exposures, a memory device is provided in which a respective pair of values for the x-ray tube output and for the exposure time is stored for each patient transparency and further exposure values. Further, a detector is provided which changes the pair of values called up when the exposure time switched by the exposure control deviates from the exposure time called up by a prescribed measure.
REFERENCES:
patent: 4309613 (1982-01-01), Brunn et al.
patent: 4566115 (1986-01-01), Brunn et al.
Brunn Klaus
Polster Walter
Church Craig E.
Porta David
Siemens Aktiengesellschaft
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