Depressed collector performance on the NRL quasioptical gyrotron

T. A. Hargreaves

doi:10.1117/12.2301503

1 December 1990 Depressed collector performance on the NRL quasioptical gyrotron

T. A. Hargreaves

Proceedings Volume 1514, 15th International Conference on Infrared and Millimeter Waves; 15142L (1990) https://doi.org/10.1117/12.2301503
Event: 15th International Conference on Infrared and Millimeter Waves, 1990, Orlando, FL, United States

Abstract

A simple, single-stage collector has been tested on the quasioptical gyrotron (QOG) experiment at the Naval Research Laboratory (NRL). This is the first application of a depressed collector to a high-power gyrotron, and was relatively easily accomplished due to the natural separation of the electron beam and the output power in the QOG. Collector efficiencies as high as 50% and overall efficiencies up to 16.1% were observed. The output power reached 431 kW with an overall efficiency of 12.7% and a collector efficiency of 40.7%. The collector efficiency was limited in this experiment due to interception of a portion of the electron beam on an undepressed section of the beam guide.

Citation Download Citation

T. A. Hargreaves "Depressed collector performance on the NRL quasioptical gyrotron", Proc. SPIE 1514, 15th International Conference on Infrared and Millimeter Waves, 15142L (1 December 1990); https://doi.org/10.1117/12.2301503

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