Mounting of a cold cathode directly to a vacuum chamber wall
US4801839A · kind A · utility
1Cited by
5References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 8, 1986 |
| Grant date | Jan 31, 1989 |
| Priority date | — |
| Expiry date | Dec 8, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/038
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A cold cathode for generating an abnormal glow discharge electron beam within a vacuum chamber is mounted to a wall of the vacuum chamber such that only the emitting front face of the cold cathode, itself electrically insulated from the vacuum chamber wall by a narrow gap therebetween, is located inside the vacuum chamber, while the remainder of the cold cathode is located outside the vacuum chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.