Title :
Effect of strontium content on barium evaporation rate from impregnated dispenser cathodes
Author :
Tarter, James O. ; Busbaher, Daniel
Author_Institution :
Ceradyne, Inc., Lexington, KY, USA
Abstract :
The barium evaporation rate of tungsten dispenser cathodes was measured and related to the strontium content of their aluminate impregnant materials. Strontium was purposely introduced into the impregnant material at various levels.
Keywords :
aluminium compounds; barium; cathodes; composite materials; electron field emission; evaporation; strontium; tungsten; Ba-W-Sr-AlOx; barium evaporation rate; impregnant material; impregnated dispenser cathodes; strontium content; tungsten dispenser cathodes; Barium; Calcium; Cathodes; Manufacturing; Strontium; Temperature measurement; Tungsten; Barium; Dispenser Cathode; Evaporation Rate; Impregnant; Strontium;
Conference_Titel :
Vacuum Electronics Conference (IVEC), 2015 IEEE International
Conference_Location :
Beijing
Print_ISBN :
978-1-4799-7109-1
DOI :
10.1109/IVEC.2015.7223755
