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twistron

Laser and Particle Beams (1)

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Highly efficient X-band relativistic twistron
E.M. Totmeninov, I.V. Pegel, V.P. Tarakanov
Journal:

Laser and Particle Beams / Volume 34 / Issue 4 / December 2016

Published online by Cambridge University Press:

09 September 2016, pp. 601-605
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The paper proposes a new scheme of high-power microwave oscillator of twistron type using a moderately relativistic high-current electron beam. In numerical experiment using axisymmetric version of the completely electromagnetic PiC code KARAT, a 56% conversion efficiency of electron beam power to electromagnetic radiation was demonstrated. With 340 kV accelerating voltage, 3.3 kA electron beam current, and 2.2 T guiding magnetic field strength, the simulated microwave power was 630 MW at 9.7 GHz. The “electronic efficiency” of the source reaches 66%.