Rotary anode X-ray tube

Details Rotary anode X-ray tube Rotary anode X-ray tube

1980-05-08

1982-11-02

Anderson, Bruce C.

X-ray or gamma ray systems or devices

Source

Electron tube

H01J 3504

Patent

active

043575552

ABSTRACT:
An X-ray tube having a rotary anode which is supported by a bearing system comprising an axial magnetic bearing and at least one radial sleeve bearing. In operation, mutually cooperating metal (e.g. W or Mo) supporting faces of the sleeve bearing are separated by a liquid layer wetting the supporting faces. The liquid layer consists of a metal or a metal alloy, such as Ga or a Ga alloy, whose vapor pressure at 300.degree. C. is below 10.sup.-5 N/m.sup.2, and which does not attack the supporting faces to any substantial extent. The tube has a long life, produces little noise during operation, and is of relatively simple construction.

REFERENCES:
patent: 2293527 (1942-08-01), Atlee
patent: 3720853 (1973-03-01), Atlee et al.
patent: 3801846 (1974-04-01), Haberrecker
patent: 3878395 (1975-04-01), Seifert et al.
patent: 4097760 (1978-06-01), Cimelli
patent: 4210371 (1980-07-01), Gerkema et al.

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