X-ray or gamma ray systems or devices – Source – Electron tube
Patent
1989-01-17
1990-10-16
Howell, Janice A.
X-ray or gamma ray systems or devices
Source
Electron tube
378144, 378121, H01J 3510
Patent
active
049641476
ABSTRACT:
The invention relates to an X-ray tube with a rotating anode which is driven by a magnetic bearings motor. The anodic current is outflowed by a friction-type contact device which is located inside the shaft supporting the rotor of the motor. The friction contact device is actuated so as to cut off or establish an electrical contact between an inner wall of the rotor and the friction contact device.
REFERENCES:
patent: 4322624 (1982-03-01), Cornelissen et al.
patent: 4504965 (1985-03-01), Ebersberger
Laurent Michel
Mathieu Claude
Noualhagnet Pierre
Freeman John C.
General Electric CGR SA
Howell Janice A.
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