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Proceedings Paper

Megawatt Gyrotrons For ECR Heating
Author(s): K. FeIch; C. Hess; H. Huey; E. Jongewaard; H. Jory; R. Pendleton
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Paper Abstract

Varian is in the process of developing gyrotrons capable of generating power levels of 1 MW CW at a frequency of 140 GHz. The first experimental gyrotron in this program has been designed to generate short-pulse power levels of 1 MW and up to 400 kW CW. In recent tests on this gyrotron, a short-pulse power level of 820 kW was obtained at 21% efficiency. While operating at peak power levels of 350-400 kW, the duty factor was raised to 10% (30 pps, 3.33 ms-pulse duration). Power losses in various parts of the tube have been measured and are in agreement with theoretical predictions. Tests at higher average powers, up to the 400 kW CW goal for the tube, are underway. Design efforts aimed at increasing the average power capabilities of the gyrotron up to 1 MW are in progress.

Paper Details

Date Published: 18 November 1989
PDF: 2 pages
Proc. SPIE 1039, 13th Intl Conf on Infrared and Millimeter Waves, (18 November 1989); doi: 10.1117/12.978391
Show Author Affiliations
K. FeIch, Varian Associates. Inc. (United States)
C. Hess, Varian Associates. Inc. (United States)
H. Huey, Varian Associates. Inc. (United States)
E. Jongewaard, Varian Associates. Inc. (United States)
H. Jory, Varian Associates. Inc. (United States)
R. Pendleton, Varian Associates. Inc. (United States)

Published in SPIE Proceedings Vol. 1039:
13th Intl Conf on Infrared and Millimeter Waves
Richard J. Temkin, Editor(s)

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