X-ray generator with x-ray tube voltage regulation for maintaining the x-ray tube current at a maximum value
AssigneeSiemens Aktiengesellschaft
InventorsKlaus Buehler, Bruno Doerrfuss, Bertram Blum
Life of this patent
Estimating the term…
Abstract
An x-ray generator includes an x-ray tube voltage regulation system which automatically adapts to line impedance and fluctuations in the network voltage, so as to maintain the x-ray tube current at a maximum value. The x-ray tube current is set by the x-ray tube voltage, the x-ray tube current is regulated so that a maximally allowable line voltage drop is not upwardly exceeded. The x-ray tube current, consequently, always has its maximum value, given the prevailing circuit conditions, so that the tube power is also at a maximum value. The current is set so as to achieve a desired mAs product, which is in turn determined by the radiation dose which the operator desires.
Claims2
An x-ray generator comprising:
- an x-ray tube operable with a tube voltage and a tube current;
- a network connectable to a mains voltage for supplying said x-ray tube with said tube voltage and tube current and thereby causing said mains voltage to exhibit a line voltage drop;
- and
- regulating circuit means, connected to said network, for regulating said tube current by preventing said tube current from causing a selected maximum line voltage drop to be upwardly exceeded.
Dependencies are inferred from the claim text.