Recent advances in Reltron and Super-Reltron HPM source development

Robert B. Miller; Carl A. Muehlenweg; Kerry W. Habiger; John R. Smith; Donald A. Shiffler

doi:10.1117/12.175736

13 May 1994 Recent advances in Reltron and Super-Reltron HPM source development

Robert B. Miller, Carl A. Muehlenweg, Kerry W. Habiger, John R. Smith, Donald A. Shiffler

Proceedings Volume 2154, Intense Microwave Pulses II; (1994) https://doi.org/10.1117/12.175736
Event: OE/LASE '94, 1994, Los Angeles, CA, United States

Abstract

Reltron and super-reltron microwave tubes use post acceleration of a well-modulated beam and multiple output cavity extraction sections to generate high power microwave pulses with excellent efficiency. We have continued our development of these tubes with emphasis being given to four specific topics: (1) Recent experiments with our 1-GHz super-reltron tube have demonstrated operation at a peak power level of 600 MW. With pulse durations of several hundred nanoseconds, the microwave energy per pulse is about 250 J. (2) We have extracted significant power (several tens of megawatts) at the third multiple (3 GHz) of our 1-GHz super-reltron tube using output cavities designed for operation in S-band. (3) We have fielded a small S-band super-reltron tube on our 260 kV modulator. We have obtained lifetime data for this tube under repetitive (20 Hz), long pulse (2 microsecond(s) ec) operating conditions. (4) We have initiated feasibility experiments of the reltron concept by post accelerating the bunched beam produced by a SLAC XK-5 klystron. In this paper we report our experimental results and discuss relevant theoretical considerations related to each of these four topics.

Citation Download Citation

Robert B. Miller, Carl A. Muehlenweg, Kerry W. Habiger, John R. Smith, and Donald A. Shiffler "Recent advances in Reltron and Super-Reltron HPM source development", Proc. SPIE 2154, Intense Microwave Pulses II, (13 May 1994); https://doi.org/10.1117/12.175736

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