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Proceedings Paper

Experimental Results From A Second Harmonic Submillimeter Gyrotron
Author(s): S. E Spira-Hakkarainen; K. E. Kreischer; R. J. Temkin
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Paper Abstract

At M.I.T. a submillimeter gyrotron is being operated using a waveguide cavity with an iris at its output end. This experiment operated at second harmonic for 1-2 μsec pulses with a 75 kV, 10 A electron beam. Second harmonic emission has been observed at 13 frequencies from 301 GHz to 503 GHz with output powers of 1-22 kW and a 15 MHz frequency bandwidth. The highest output power was 22 kW with an efficiency of 3.5 % at 467 GHz and an output power of 15 kW with 6% efficiency was obtained at 417 Ghz. A variety of diagnostics that were used to discriminate between fundamental and second harmonic emission will be discussed.

Paper Details

Date Published: 2 June 1989
PDF: 4 pages
Proc. SPIE 1059, Space Sensing, Communications, and Networking, (2 June 1989); doi: 10.1117/12.951715
Show Author Affiliations
S. E Spira-Hakkarainen, Massachusetts Institute of Technology (United States)
K. E. Kreischer, Massachusetts Institute of Technology (United States)
R. J. Temkin, Massachusetts Institute of Technology (United States)


Published in SPIE Proceedings Vol. 1059:
Space Sensing, Communications, and Networking
Monte Ross; Richard J. Temkin, Editor(s)

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