System for the suspension of a rotating anode of an x-ray tube with passive magnetic bearings
AssigneeGeneral Electric CGR S.A.
InventorsMichel Laurent, Marc Doukhan, Pierre Noualhaguet
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Abstract
The disclosure concerns rotating-anode type X-ray tubes. According to the disclosure, the rotor is supported by passive magnetic bearings, the respective positions of which are such that the rotor is shifted in the direction opposite to that of the anode. The rotor is kept shifted by a thrust-bearing acts, at the same time, as an electrical conductor for the anode current.
Claims8
A system for the suspension of a rotating anode of an X-ray tube which has a rotor rotating on an axis, one end of which supports the anode and a stator placed at the outside of said tube, wherein said system comprises at least two first magnetized rings fixed to the rotor, and at least two other magnetized rings fixed a casing of said tube, said rings being positioned with respect to one another so that said rotor can rotate without mechanical friction around an axis of rotation and so that it is axially shifted so as to come into contact with a thrust-bearing placed on a side opposite that of the anode.
Dependencies are inferred from the claim text.