Parallel filament electron gun
US5254911A · kind A · utility
12Cited by
9References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 22, 1991 |
| Grant date | Oct 19, 1993 |
| Priority date | — |
| Expiry date | Nov 22, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J33/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A novel parallel-filament type electron gun for electron beam irradiation accelerators or generators and the like having a plurality of longitudinally extending parallel transversely spaced substantially co-planar similar filaments for generating electrons and disposed between a lower co-extensive extractor grid and an upper co-extensive electrostatic lens surface for shaping the electron beam profile, and with constructional features that enable variable width and extremely wide guns to be achieved and with improved beam uniformity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.