X-ray tube and cathode cup with deposition shield
US10818466B1 · kind B1 · utility
1Cited by
5References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 1, 2019 |
| Grant date | Oct 27, 2020 |
| Priority date | — |
| Expiry date | May 1, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2235/20
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An x-ray tube includes an electron emitter and a cathode cup having a recess that holds the electron emitter. The recess has a bottom surface, and a shield is positioned in the recess between the electron emitter and the bottom surface. The shield is configured to receive deposited sublimated emitter material and to maintain the sublimated emitter material away from the electron emitter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.