RF Space-Charge Effects in CRM with Arbitrary Phase Velocity of the Operating Wave |
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Authors: | V. L. Bratman A. E. Fedotov A. V. Savilov |
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Affiliation: | (1) Institute of Applied Physics, Russian Academy of Science, 46 Ulyanov Street, Nizhny, Novgorod, 603600, Russia |
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Abstract: | The simplest elementary source of RF space-charge field in the form of a helix rotating with the frequency of the operating wave is proposed. The use of these sources (mutually interacting) allows one to describe the main space-charge effects for different varieties of CRMs in both linear and nonlinear regimes. It is shown that, like in the subrelativistic gyrotron, due to development of the quasielectrostatic negative-mass instability, the space charge increases the increment in the amplifier and decreases the starting current in the oscillator. |
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Keywords: | cyclotron resonance masers gyrotron space-charge negative-mass instability |
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