Rotating anode X-ray tube with improved thermal capacity

Details Rotating anode X-ray tube with improved thermal capacity Rotating anode X-ray tube with improved thermal capacity

1978-09-05

1980-02-05

Demeo, Palmer C.

Electric lamp and discharge devices

Cyclotrons

H01J 3510

Patent

active

041874420

ABSTRACT:
A low thermally conductive columbium metal stem has a heavy refractory metal x-ray target disk fastened to one end. A high thermal conductivity rotor hub comprising a cup-shaped element is fastened to the other end of the stem and the rotor hub is fastened to the end of an induction motor cylinder or liner which is coated to enhance heat emission and is induced to rotate by being coupled to a rotating magnetic field. A low thermally conductive bearing hub is fastened to the inside of the rotor hub and to a shaft which is journaled for rotation in bearings. The bearing hub enhances thermal isolation of the bearings from the hot rotor hub and hot target.

REFERENCES:
patent: 2786954 (1957-03-01), Atlee
patent: 3622824 (1971-11-01), Atlee
patent: 3634870 (1972-01-01), Kessler
patent: 3699373 (1972-10-01), Holland et al.
patent: 3753021 (1973-08-01), Braun
patent: 3855492 (1974-12-01), Langer et al.
patent: 4004174 (1977-01-01), Yashiro
patent: 4097759 (1978-06-01), Furbee et al.

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