Radial flow electron gun
US4048534A · kind A · utility
4Cited by
6References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 25, 1976 |
| Grant date | Sep 13, 1977 |
| Priority date | — |
| Expiry date | Mar 25, 1996 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J37/063
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Radial electron flow in an elongated electron gun is achieved from a unipotential, planar cathode by locating the cathode with respect to the gun axis and with respect to a cylindrical divergent anode lens so that the lens focal line lies on the gun axis. The effect of the accelerating field on the distortion of the radial flow is reduced by employing a deep anode grid to reduce the penetration of the accelerating field into the anode drift region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.