Traveling-wave tube efficiency improvement with textured pyrolytic graphite multistage depressed collector electrodes

1 October 1981

journal article
Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Electron Device Letters

Vol. 2 (10) , 252-254
https://doi.org/10.1109/edl.1981.25422

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

ELECTRODES
TESTING
SURFACE TEXTURE
POWER GENERATION
COPPER
FREQUENCY
ASSEMBLY
ELECTRON MICROSCOPY
ELECTRON EMISSION
SURFACE TREATMENT

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