Title :
Controlled-Porosity Cathodes for High-Current-Density Applications
Author :
Ives, R.Lawrence ; Falce, Louis R. ; Miram, George ; Collins, George
Author_Institution :
Calabazas Creek Res., Inc., San Mateo, CA, USA
fDate :
6/1/2010 12:00:00 AM
Abstract :
Controlled-porosity reservoir cathodes that can operate at high current densities with long lifetimes are described. The fabrication process is economical and adaptable to high volume production. The cathodes exhibit superior performance over sintered powdered tungsten cathodes. This paper describes the fabrication, presents measured performance, and compares the results with conventional dispenser cathodes.
Keywords :
cathodes; current density; electron guns; porosity; controlled-porosity reservoir cathodes; dispenser cathodes; electron guns; high current density; sintered powdered tungsten cathodes; Cathodes; controlled porosity; dispenser cathode; electron guns;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2010.2046427
