X-ray tube cathode focusing element
US12046441B2 · kind B2 · utility
1Cited by
24References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2021 |
| Grant date | Jul 23, 2024 |
| Priority date | — |
| Expiry date | May 13, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2235/068
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Various methods and systems are provided for an X-ray tube cathode focusing element. In one example, a focusing element is configured with three electron emission filaments, an integrated edge focusing, and a bias voltage. The integrated edge focusing may include a continuous single architecture with rounded edges, and a voltage of the focusing element may be negatively biased relative to a voltage of the electron emission filaments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.