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Proceedings Paper

High frequency, megawatt gyrotron experiments at MIT
Author(s): K. E. Kreischer
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Paper Abstract

Results from megawatt gyrotron experiments operating between 110 and 140 GHz will be presented. The beam velocityspread has been measured using a retarding potential diagnostic. The measured perpendicular velocity spread was typicallybetween ±10% and ±15% for velocity ratios between 1.5 and 2.0. The spread was larger at higher beam currents. Goodagreement was also obtained between two separate measurements of the velocity ratio. A new experiment at 110 GHz is nowbeing assembled. This device will operate in the TE22,6,1 mode and will have an internal converter to produce a Gaussianoutput beam.

Paper Details

Date Published: 30 November 2017
PDF: 2 pages
Proc. SPIE 2104, 18th International Conference on Infrared and Millimeter Waves, 210478 (30 November 2017); doi: 10.1117/12.2298692
Show Author Affiliations
K. E. Kreischer, MIT Plasma Fusion Ctr. (United States)

Published in SPIE Proceedings Vol. 2104:
18th International Conference on Infrared and Millimeter Waves
James R. Birch; Terence J. Parker, Editor(s)

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