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Proceedings Paper

Relativistic L-band magnetron experiments driven by a microsecond e-beam accelerator
Author(s): Michael R. Lopez; Ronald M. Gilgenbach; Christopher W. Peters; Hiroto Miyake; S. Anderson; Mark W. Johnston; Marc Keyser; Mary L. Brake; Yue Ying Lau; Thomas A. Spencer; John W. Luginsland; Raymond W. Lemke; David Price; Lars Ludeking
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Paper Abstract

This research program investigates high power microwave generation utilizing a microsecond electron beam accelerator to drive a relativistic magnetron. Peak microwave power levels have been achieved exceeding 200 MW total (100 MW per-cavity for two-cavity extraction) from a six-vane structure. Time-frequency analysis shows that microwave emission is primarily single-mode with a total pulse duration in the range of 50 - 100 ns. Relativistic magnetron end-loss current measurements have been performed. Preliminary total efficiency estimates for the relativistic magnetron are in the range of 13%, including endloss current. If endloss current is subtracted, the magnetron electronic efficiency nearly doubles to 25%. The goal of future research is to explore techniques for increasing the microwave power, efficiency and pulselength of relativistic magnetrons.

Paper Details

Date Published: 15 August 2001
PDF: 8 pages
Proc. SPIE 4371, Intense Microwave Pulses VIII, (15 August 2001);
Show Author Affiliations
Michael R. Lopez, Univ. of Michigan (United States)
Ronald M. Gilgenbach, Univ. of Michigan (United States)
Christopher W. Peters, Univ. of Michigan (United States)
Hiroto Miyake, Univ. of Michigan (United States)
S. Anderson, Univ. of Michigan (United States)
Mark W. Johnston, Univ. of Michigan (United States)
Marc Keyser, Univ. of Michigan (United States)
Mary L. Brake, Univ. of Michigan (United States)
Yue Ying Lau, Univ. of Michigan (United States)
Thomas A. Spencer, Air Force Research Lab. (United States)
John W. Luginsland, Air Force Research Lab. (United States)
Raymond W. Lemke, Sandia National Labs. (United States)
David Price, Titan Corp. (United States)
Lars Ludeking, Mission Research Corp. (United States)

Published in SPIE Proceedings Vol. 4371:
Intense Microwave Pulses VIII
Howard E. Brandt, Editor(s)

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