Title :
P1–34: Stability improvements on Vogel mounted thermal sources
Author :
Mackie, William A. ; Magera, Gerald G. ; Fast, Cory L.
Author_Institution :
Appl. Phys. Technol., Inc., McMinnville, OR, USA
Abstract :
We have produced thermionic cathodes using (100) oriented lanthanum and cerium hexaboride as the emission sources. These cathodes use the Vogel mount system for mechanical alignment and heating. While this mount is superior for mechanical stability we show methods to improve emission stability which are mount related.
Keywords :
thermionic cathodes; thermionic emission; Vogel mount system; Vogel mounted thermal source; cerium hexaboride; emission source; emission stability; heating; lanthanum; mechanical alignment; mechanical stability; thermionic cathode; Carbon dioxide; Cathodes; Cerium; Electron sources; Heating; Lithography; Scanning electron microscopy; Temperature; Thermal stability; Thermionic emission; Vogel mount; cerium hexaboride; electron source; hexaboride; thermionic cathode;
Conference_Titel :
Vacuum Electronics Conference (IVEC), 2010 IEEE International
Conference_Location :
Monterey, CA
Print_ISBN :
978-1-4244-7098-3
DOI :
10.1109/IVELEC.2010.5503549
