Relativistic klystron amplifier IV: simulation studies of a coaxial-geometry RKA

Jonathan Krall; Moshe Friedman; Yue Ying Lau; Victor Serlin

doi:10.1117/12.43477

1 April 1991 Relativistic klystron amplifier IV: simulation studies of a coaxial-geometry RKA

Jonathan Krall, Moshe Friedman, Yue Ying Lau, Victor Serlin

Proceedings Volume 1407, Intense Microwave and Particle Beams II; (1991) https://doi.org/10.1117/12.43477
Event: Optics, Electro-Optics, and Laser Applications in Science and Engineering, 1991, Los Angeles, CA, United States

Abstract

A coaxial drift tube allows propagation of an ultra high power relativistic electron beam (500 keV, not less than 100 kA, 100 ns). In this paper we study the modulation of a large diameter (12.6 cm) intense relativistic electron beam (500 keV, 16 kA) by an external microwave source via particle simulation. The annular beam, enclosed within a coaxial drift tube, is found to be fully modulated by a low-power external RF source at a frequency of 1.3 GHz. We further show that the coaxial configuration is easily scaled to high power. Here, a very large diameter (26 cm) intense beam (460 keV, 100 kA) is fully modulated at 1.3 GHz to obtain 31 GW of RF beam power.

Citation Download Citation

Jonathan Krall, Moshe Friedman, Yue Ying Lau, and Victor Serlin "Relativistic klystron amplifier IV: simulation studies of a coaxial-geometry RKA", Proc. SPIE 1407, Intense Microwave and Particle Beams II, (1 April 1991); https://doi.org/10.1117/12.43477

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