Electron gun for producing incident and secondary electrons
US7285915B2 · kind B2 · utility
1Cited by
0References
7Claims
0Family size
Inventors
Key dates
| Filing date | Nov 26, 2001 |
| Grant date | Oct 23, 2007 |
| Priority date | — |
| Expiry date | Dec 31, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J3/023
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electron gun. The electron gun includes an RF cavity having a first side with an emitting surface and a second side with a transmitting and emitting section. The gun also includes a mechanism for producing an oscillating force which encompasses the emitting surface and the section so electrons are directed between the emitting surface and the section to contact the emitting surface and generate additional electrons and to contact the section to generate additional electrons or escape the cavity through the section. A method for producing electrons.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.