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US 7,486,774 B2Granted
Removable aperture cooling structure for an X-ray tube
AssigneeVarian Medical Systems, Inc.
InventorBruce A. Cain
Life of this patent
Estimating the term…
Abstract
An x-ray tube having a removable aperture structure that can be detached from a portion of the x-ray tube without damaging either component is disclosed. The aperture structure includes heat conducting surfaces in communication with a coolant supplied to the fluid reservoir. The removable aperture structure includes a bond surface configured to receive a removable bond with the x-ray tube evacuated enclosure.
Claims19
An x-ray tube, comprising:
- an evacuated envelope within which a cathode and an anode are disposed, the anode being positioned to receive electrons emitted by the cathode, and the evacuated envelope being at least partially defined by
- a cathode can;
- a removable aperture structure partially received in the cathode can, the removable aperture structure comprising first and second components, at least one of the components defining an aperture configured to allow electrons to pass from the cathode to the anode;
- a first bond located at a first integration site of the first and second components of the removable aperture structure and the first bond being attached to the first and second components, where the first bond is a permanent bond;
- and
- a second bond attached to the cathode can and the removable aperture structure, where the second bond is a removable bond.
3 more elements
An x-ray tube, comprising:
- an evacuated envelope within which a cathode and an anode are disposed, the anode being positioned to receive electrons emitted by the cathode, and the evacuated envelope being at least partially defined by
- a cathode can;
- an aperture structure positioned between the cathode and the anode and at least partially received within the cathode can;
- and
- an annular removable bond attached to the aperture structure and the cathode can, wherein the annular bond is the only bond formed between the aperture structure and the cathode can.
2 more elements
An x-ray tube, comprising:
- an evacuated envelope within which a cathode and an anode are disposed, the anode being positioned to receive electrons emitted by the cathode, and the evacuated envelope being defined in part by a cathode can;
- an aperture fluid sleeve attached to the cathode can;
- a removable aperture structure partially received in the cathode can;
- an upper aperture cup attached to the removable aperture structure and to the aperture fluid sleeve;
- and
- a lower aperture cup attached to the removable aperture structure and to the cathode can, the lower aperture cup cooperating with the aperture fluid sleeve, removable aperture structure and upper aperture cup to define a portion of a fluid passageway.
3 more elements
Dependencies are inferred from the claim text.