X-ray or gamma ray systems or devices – Source – Electron tube
Patent
1988-06-09
1989-04-11
Fields, Carolyn E.
X-ray or gamma ray systems or devices
Source
Electron tube
378125, 378144, 378142, H01J 3506
Patent
active
048213055
ABSTRACT:
The average power capacity of a rotating-anode X-ray generator tube is limited by the slow radiation cooling of the anode. The invention removes this limitation by rotating the entire vacuum envelope so the heat can be conducted directly to the air or to a circulating liquid. The cathode and anode are made as figures of revolution about the axis. A stationary source of X-rays is produced by focusing a stationary spot of the light onto a rotating photocathode. The photoelectrons are drawn off and focused onto a stationary spot on the rotating anode, to produce a stationary source of X-rays.
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IBM Technical Disclosure Bulletin, vol. 17, No. 10, Mar. 1975, "X-Ray Tube Having Anode with Compound Motion", J. B. Gunn, pp. 3044-3046.
Cole Stanley Z.
Fields Carolyn E.
Nelson Richard B.
Porta David P.
Sgarbossa Peter J.
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