Circuit arrangement for adjusting the tube current in an...

Details Circuit arrangement for adjusting the tube current in an... Circuit arrangement for adjusting the tube current in an...

H - Electricity

05

G

355/33

H05G 1/34 (2006.01)

Patent

CA 1114520

ABSTRACT : In known X-ray generators, service technicians must do extensive adjusting work when an X- ray tube is replaced, even in cases where the tube is replaced by a tube of the same type. The adjusting operations are eliminated by the present invention. In accordance with the invention, the filament currents associated with different tube currents and tube voltages are stored in the various memory locations of a memory. For an X-ray exposure, the measured values of filament current or tube current are compared with the values stored, and the values stored are corrected, if necessary. Variations in the emission characteristics of the X-ray tubes as caused by aging are thus also taken into account automatically. -24-

295722

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