Title :
Secondary-Emitting Surfaces in the Presence of Oxide-Coated Cathodes
Author :
Nevin, S. ; Salinger, H.
Author_Institution :
Capehart-Farnsworth Corporation, Fort Wayne, Ind.
Abstract :
The experiments described here show that the deleterious effect of oxide cathodes on secondary-emitting surfaces of silver magnesium can be overcome by using tantalum instead of nickel as the base metal for the oxide coating.
Keywords :
Cathodes; Electron emission; Electron tubes; Gettering; Magnesium; Nickel; Radio frequency; Silver; Surface contamination; Temperature;
Journal_Title :
Proceedings of the IRE
DOI :
10.1109/JRPROC.1951.231440
