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Proceedings Paper

Operation of a long-pulse relativistic magnetron in a phase-locking system
Author(s): Shien Chi Chen; George Bekefi; Richard J. Temkin
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Paper Abstract

Successful injection-locking of relativistic magnetrons requires frequency stable microwave output with pulse lengths longer than the phase-locking time. We report the major experimental results from our stable and long-pulse relativistic magnetron system designed to address important issues relevant to the realization of injection-locking. Long voltage pulse operation 1js) with good stability was achieved and relatively long (250 ns) RF pulses at 5 MW output power level were generated. These pulses exceed the theoretical locking time for a 1 MW injected power source. The magnetron operates in S-band (3. 66 GHz) and is driven by a modulator which operates either at 700 kV/ 700 A or 250 kV/ 1. 7 kA. The stability of the narrow band microwave frequency is better than 3 parts in 1000. Possible RF pulse-shortening mechanisms are studied. 1.

Paper Details

Date Published: 1 April 1990
PDF: 8 pages
Proc. SPIE 1226, Intense Microwave and Particle Beams, (1 April 1990); doi: 10.1117/12.18542
Show Author Affiliations
Shien Chi Chen, Massachusetts Institute of Technology (United States)
George Bekefi, Massachusetts Institute of Technology (United States)
Richard J. Temkin, Massachusetts Institute of Technology (United States)

Published in SPIE Proceedings Vol. 1226:
Intense Microwave and Particle Beams
Howard E. Brandt, Editor(s)

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