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Plasma and Beam Physics

Boise State University

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Simulation Of A Crossed-Field Amplifier Using A Modulated Distributed Cathode, Marcus Pearlman May 2017

Simulation Of A Crossed-Field Amplifier Using A Modulated Distributed Cathode, Marcus Pearlman

Boise State University Theses and Dissertations

Current crossed-field amplifiers (CFAs) use a uniformly distributed electron beam, and in this work, the effects of using a spatially and temporally controlled electron source are simulated and studied. Spatial and temporal modulation of the electron source in other microwave vacuum electron devices have shown an increase in gain and efficiency over a continuous current source, and it is expected that similar progress will be made with CFAs. Experimentally, for accurate control over the electron emission profile, integration of gated field emitter arrays (GFEAs) as the distributed electron source in a crossed-field amplifier (CFA) is proposed.

Two linear format, 600 …