Ring-and-line-focus electron beams from a glow-discharge gun
- 20 September 1968
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 4 (19) , 405-406
- https://doi.org/10.1049/el:19680320
Abstract
Electron guns have been developed in which a high-voltage cold-cathode discharge, at low pressure, generates an electron beam. By shaping the cathode, the beam may be focused in a particular contour. For example guns operating at 3kW at 15kV have been designed to focus in an annular ring or in a line.Keywords
This publication has 0 references indexed in Scilit: