Rotary-anode X-ray tube comprising a cooling device
AssigneeU.S. Philips Corporation
InventorsLothar Weil, Rolf Behling, Michael Lubcke, Heinz-Jurgen Jacob
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Abstract
An anode of a rotary-anode X-ray tube is connected to a bearing portion which is rotatable about an axis of rotation and which cooperates with the stationary bearing portion in which there is provided a cavity which extends in the direction of the axis of rotation and whose side walls can be cooled by means of a cooling medium. Effective cooling, in combination with a small pressure drop of the cooling medium, is achieved in that there is provided a cooling member which serves to produce an essentially laminar cooling medium flow and which consists of a number of lamellae which extend essentially parallel to the axis and which are in thermal contact with the side walls of the cavity.
Claims17
A rotary-anode X-ray tube whose anode (5) is connected to a bearing portion (9) which is rotatable about an axis of rotation (16) and which cooperates with a stationary bearing portion 98) in which there is provided a cavity (11) which extends in the direction of the axis of rotation and the side walls of which can be cooled by means of flow of a cooling medium in a cooling medium circuit, characterized in that in order to produce an essentially laminar cooling medium flow directed essentially parallel to the axis of rotation there are provided a plurality of lamellae (14) within the cavity (11) which extend essentially parallel to the axis of rotation and which are in thermal contact with the side walls of the cavity (11).
A method of manufacturing a rotary-anode X-ray tube whose anode is connected to a bearing portion which is rotatable about an axis of rotation and which cooperates with a stationary bearing portion in which there is provided a cavity (11) which extends in the direction of the axis of rotation and the side walls of which are adjoined by a cooling member (12) within cavity (11), characterized in that a soldering foil is wrapped around the cooling member (12), the soldering foil being slid into the cavity (11) together with the cooling member, the cooling member being connected to the side walls of the cavity by heating the soldering foil.
Dependencies are inferred from the claim text.