Title :
Quantum correction factor for thermionic emission
Author :
Lin, Ming-Chieh ; Chuu, Der-San
Author_Institution :
Nat. Center for High-Performance Comput., Hsinchu, Taiwan
Abstract :
Thermionic emission cathodes are widely used in microwave tubes. In this paper, we study theoretically about the quantum correction factor for thermionic emission. The calculated quantum correction factor nearly ranges from 0.2 to 0.5 depending on the work function and the operating temperature of cathode materials.
Keywords :
microwave tubes; thermionic cathodes; thermionic emission; work function; cathode materials; microwave tubes; quantum correction factor; thermionic emission cathodes; work function; Cathodes; Diodes; Electrons; Elementary particle vacuum; Quantum computing; Quantum mechanics; Research and development; Temperature dependence; Temperature distribution; Thermionic emission;
Conference_Titel :
Vacuum Electronics, 2003 4th IEEE International Conference on
Print_ISBN :
0-7803-7699-4
DOI :
10.1109/IVEC.2003.1286116
