Title :
17.1: A new model for the mechanism of operation of scandate and refractory oxide cathodes
Author_Institution :
Electr. & Comput. Eng., UCDavis, Davis, CA, USA
Abstract :
The experimental evidence that lead to a new model for the scandate cathode is discussed followed by a description of the model itself. In the full paper the equations governing this model will be derived and used to provide quantitative estimates for the semiconductor and surface properties of a top layer scandate cathode using experimental data and the lattice parameters of scandia. The model is applicable to other metal oxides.
Keywords :
cathodes; electron emission; electron emission; refractory oxide cathodes; semiconductor property; surface property; top layer scandate oxide cathode; Barium; Cathodes; Crystals; Electrons; Equations; Immune system; Lattices; Semiconductor diodes; Space charge; Temperature dependence; Electron emission; nanometer particles; scandate cathode; solid state physics;
Conference_Titel :
Vacuum Electronics Conference (IVEC), 2010 IEEE International
Conference_Location :
Monterey, CA
Print_ISBN :
978-1-4244-7098-3
DOI :
10.1109/IVELEC.2010.5503435
