X-ray tube with improved vacuum processing
US8509385B2 · kind B2 · utility
1Cited by
6References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 5, 2010 |
| Grant date | Aug 13, 2013 |
| Priority date | — |
| Expiry date | Jul 30, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2235/20
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In one embodiment, an X-ray tube includes an electron beam source including a primary cathode configured to emit an electron beam and an anode assembly including an anode configured to receive the electron beam and to emit X-rays when impacted by the electron beam. The X-ray tube also includes an enclosure, at least the primary cathode and the anode being disposed in the enclosure, and a secondary cathode disposed in the enclosure and configured to emit electrons to impact the anode for degassing the enclosure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.