Title :
Advanced Dispenser Cathodes
Author :
Ives, R. Lawrence ; Falce, Louis R. ; Miram, George ; Collins, George
Author_Institution :
Calabazas Creek Res., Inc., San Mateo, CA, USA
fDate :
5/1/2012 12:00:00 AM
Abstract :
Controlled porosity reservoir cathodes offer significantly improved performance over conventional impregnated cathodes. Optimized performance requires additional design to achieve reduced barium deposition on adjacent surfaces, increased lifetime, and high current density emission. This paper describes the achievable performance and the associated design requirements.
Keywords :
barium; current density; plasma transport processes; porosity; thermionic cathodes; Ba; current density emission; dispenser cathodes; porosity reservoir cathodes; Barium; Cathodes; Current density; Materials; Reservoirs; Tungsten; Wires; Cathodes; controlled porosity; dispenser cathode; electron guns;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2011.2174386
