Rotating X-ray tube with external bearings
This patent describes an x-ray tube; an envelope for containing a vacuum; a target means mounted within the envelope for emitting x-rays; an electron beam accelerator assembly including: an indirectly heated cathode means for emitting an electron beam; a primary anode plate having formed therein an aperture through which the electron beam in accelerated and means for focusing the electron beam on the target means; support means external of the envelope for supporting the envelope for rotational movement; and means for deflecting the electron beam along a selected path as the envelope rotates such that the electron beam strikes selected portions of the target means mounted within the envelope as the envelope rotates.
- Assignee:
- Imatron, Inc., South San Francisco, CA (USA)
- Patent Number(s):
- A; US 4993055
- Application Number:
- PPN: US 7-275780
- OSTI ID:
- 5660941
- Country of Publication:
- United States
- Language:
- English
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