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Author(s):
T. Shimozuma, M. Sato, Y. Takita, S. Ito, S. Kubo, H. Idei, K. Ohkubo, T. Watari, T.S. Chu, K. Felch, P. Cahalan and C.M. Loring, Jr
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Title:
The First Preliminary Experiments on an 84 GHz Gyrotron with a Single-Stage Depressed Collector
Date of publication:
Oct. 1997
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Key words:
electron cyclotron heating, gyrotron, depressed collector, electron beam
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Abstract:
We fabricated and tested an 84GHz gyrotron with a single-stage depressed collector. The gyrotron has a high-voltage insulating section made of a low loss silicon nitride composite. In this preliminary experiment in the depressed collector configuration, we obtained 59l kW, 41% operation with a depression voltage of 22.5kV. Access to the higher efficiency region was inhibited by an increase in anode current.
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