Robust pierce gun having multiple transmitting and emitting section
US6642657B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 20, 2001 |
| Grant date | Nov 4, 2003 |
| Priority date | — |
| Expiry date | Nov 20, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2201/3423
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electron gun that generate an electron flow and the application of this gun to produce rf energy or for injectors. The electron gun includes an electrostatic cavity having a first stage with emitting faces and multiple stages with emitting sections. The gun also includes a mechanism for producing an electrostatic force which encompasses the emitting faces and the multiple emitting sections so electrons are directed from the emitting faces toward the emitting sections to contact the emitting sections and generate additional electrons and to further contact other emitting sections to generate additional electrons and so on then finally to escape the end of the cavity. A method for producing a flow of electrons.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.