Title :
Pressed metal-alloy palladium-barium cathode
Author :
Polivnikova, O.V. ; Li, I.P.
Author_Institution :
FSUE “RPC “Istok”, Fryazino, Russia
Abstract :
In filament-free magnetrons which are activated by electron emission from field-radiating cathodes its necessary level is provided by adsorption of active metal barium coming from the main palladium-barium cathode. The developed pressed palladium-barium cathode allows to change barium evaporation speed due to change of its porosity and hence barium Knudsen flow. It will lead to emission level control of field radiating cathodes.
Keywords :
adsorption; cathodes; electron emission; level control; magnetrons; porosity; adsorption; barium Knudsen flow; barium evaporation; electron emission; emission level control; field-radiating cathode; filament-free magnetrons; porosity; pressed metal-alloy palladium-barium cathode; Barium; Cathodes; Compounds; Magnetrons; Powders; Resistance; emission; magnetron; pressed metal-alloy palladium-barium field radiating cathode;
Conference_Titel :
Vacuum Electronics Conference (IVEC), 2013 IEEE 14th International
Conference_Location :
Paris
Print_ISBN :
978-1-4673-5976-4
DOI :
10.1109/IVEC.2013.6571169
