Large area electron source
US7078716B2 · kind B2 · utility
5Cited by
19References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 27, 2004 |
| Grant date | Jul 18, 2006 |
| Priority date | — |
| Expiry date | Jan 27, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2201/304
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
By using a large area cathode, an electron source can be made that can irradiate a large area more uniformly and more efficiently than currently available devices. The electron emitter can be a carbon film cold cathode, a microtip or some other emitter. It can be patterned. The cathode can be assembled with electrodes for scanning the electron source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.