Title :
The Effects of Synthesis Process on Aluminate Emitters Thermionic Properties
Author :
Higashi, C. ; Giovedi, C. ; Motta, C.C.
Author_Institution :
Inst. de Pesquisas Energeticas e Nucleares
Abstract :
This paper describes some different synthesis methods of barium-calcium aluminate to be used as a thermionic emitter. It is also investigated thermionic emission measurement techniques to characterize the impregnated cathodes under development. A Pierce type electron gun is scaled up to match the electron gun designed with the desirable beam parameters like applied voltage and cathode emission current density in order to determine the space-charge current limit
Keywords :
electron guns; space charge; thermionic emission; Pierce type electron gun; aluminate emitters; space-charge current limit; thermionic emitter; Atmosphere; Cathodes; Crystallization; Current density; Electron beams; Electron emission; Solid state circuits; Temperature; Thermionic emission; Voltage; Aluminate emitters; Pierce electron gun; power microwave devices; thermionic characteristics;
Conference_Titel :
Vacuum Electronics Conference, 2006 held Jointly with 2006 IEEE International Vacuum Electron Sources., IEEE International
Conference_Location :
Monterey, CA
Print_ISBN :
1-4244-0108-9
DOI :
10.1109/IVELEC.2006.1666281
