X-ray or gamma ray systems or devices – Electronic circuit – Exposure timer
Patent
1982-08-23
1984-03-27
Church, Craig E.
X-ray or gamma ray systems or devices
Electronic circuit
Exposure timer
378116, G03B 4116
Patent
active
044398670
ABSTRACT:
In an X-ray photograph unit of the type which controls an X-ray projection on the basis of a tube voltage, a tube current and an exposure time, this invention relates to an X-ray photograph unit including photograph portion switches disposed so as to correspond to portions of the human body to be photographed and which set primarily and automatically the tube voltage and the tube current, and thickness switches disposed so as to correspond to the thickness of the portions to be photographed and setting automatically the exposure time in combination with said photograph portion switches, wherein the selection of said photograph portion switches and said thickness switches along makes it possible to carry out the X-ray projection.
REFERENCES:
patent: 4097741 (1978-06-01), Pfeiler
patent: 4160906 (1979-07-01), Daniels
Church Craig E.
Palmer Carroll F.
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