Title :
Traveling-wave tube efficiency improvement with textured pyrolytic graphite multistage depressed collector electrodes
Author :
Curren, A.N. ; Fox, T.A.
Author_Institution :
NASA, Lewis Research Center, Cleveland, OH
fDate :
10/1/1981 12:00:00 AM
Abstract :
The improved efficiency of a multistage depressed collector (MDC) with ion-beam textured pyrolytic graphite electrode surfaces is demonstrated by comparison with the performance of other MDC´s tested with the same microwave rf amplifier traveling-wave tube (TWT). Because of the sensitivity of overall TWT efficiency to collector efficiency, significant improvements in TWT performance are possible with the use of textured pyrolytic graphite MDC´s.
Keywords :
Assembly; Copper; Electrodes; Electron emission; Electron microscopy; Frequency; Power generation; Surface texture; Surface treatment; Testing;
Journal_Title :
Electron Device Letters, IEEE
DOI :
10.1109/EDL.1981.25422
