A fundamental mode, high-power, large-orbit gyrotron using a rectangular interaction region

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Title: A fundamental mode, high-power, large-orbit gyrotron using a rectangular interaction region
Author: Radack, D.J.; Ramaswamy, K.; Destler, William; Rodgers, J.
Abstract: This paper reports on experimental and theoretical studies of a fundamental mode, large-orbit gyrotron oscillator designed to produce high-power radiation in the rectangular TE,a mode at about 650 MHz. A basic linear theory for design and operation is presented and experiments confirm its applicability. Results of initial experiments have demonstrated 4Oh4.2 MW of microwave radiation in pulses equivalent in duration to the electron beam, corresponding to an efficiency of about 16%. In some cases, much greater power levels of lOO=l=20 MW were observed at the expected frequency but in pulses of very short duration. In both cases, the observed frequency and mode pattern were consistent with operation in the fundamental mode. Experiments also demonstrated that the observed radiation was linearly polarized, as expected.
Description: Copyright 1993 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in the Journal of Applied Physics Volume 73 No. 12 pp. 8139-8145 and may be found at www.aip.org.
Record URI: http://hdl.handle.net/1850/9714
Date: 1993-06-15

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