Coaxial Cathode Design for Plasma Sources
- 1 August 1969
- journal article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 40 (8) , 1049-1053
- https://doi.org/10.1063/1.1684148
Abstract
An electron bombardment heated cathode structure is described which is capable of producing an electron emitting surface 5.7 cm in diameter at 2700 K, with ±5 K azimuthal temperature uniformity. The coaxial structure allows access along the axis, is assembled from modular components machinable on a lathe, and requires no water cooling internal to the vacuum system. The ``cathode'' is particularly suitable as an emitting end plate for a thermionic plasma (Q machine).Keywords
This publication has 3 references indexed in Scilit:
- Effect of Temperature Gradients in Thermionic PlasmasPhysics of Fluids, 1966
- Effect of Sheaths on Drift Instabilities in Thermionic PlasmasPhysics of Fluids, 1965
- Improved Quiescent Plasma SourceReview of Scientific Instruments, 1964