Relativistic Magnetron Research

Shien-Chi Chen; George Bekefi

doi:10.1117/12.965076

9 May 1988 Relativistic Magnetron Research

Shien-Chi Chen, George Bekefi

Proceedings Volume 0873, Microwave and Particle Beam Sources and Propagation; (1988) https://doi.org/10.1117/12.965076
Event: 1988 Los Angeles Symposium: O-E/LASE '88, 1988, Los Angeles, CA, United States

Abstract

We present preliminary results of a longer pulse (200 ns) relativistic magnetron experiment. This experiment demon-strated the excitation of pr. mode besides the usual 27r mode through voltage variation and through magnetic field tuning, and reconfirmed the importance of voltage stability in achieving the mode stability and power output stability required by phase locking conditions. The experiment also indicated the possibility of using velvet as the cathode material for achieving long microwave pulses (200 ns). The long pulse behavior of graphite cathodes with varying cathode locations was found to be similar to the short pulse case. These experimental results aid in the understanding of the high-current magnetron under long pulse operation which is crucial for conducting the long pulse phase locking experiment. We also describe the design and construction of our long pulse, high repetition rate (1 ps, 4 pps) relativistic magnetron system (700 kV, 770 A) with the stability and pulse duration suitable for studying phase locking.

Citation Download Citation

Shien-Chi Chen and George Bekefi "Relativistic Magnetron Research", Proc. SPIE 0873, Microwave and Particle Beam Sources and Propagation, (9 May 1988); https://doi.org/10.1117/12.965076

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