The Effects of Synthesis Process on Aluminate Emitters Thermionic Properties

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