On Certain Theoretical Aspects Of Relativistic Klystron Amplifiers

Y. Y. Lau; J. Krall; M. Friedman; V. Serlin

doi:10.1117/12.951776

25 July 1989 On Certain Theoretical Aspects Of Relativistic Klystron Amplifiers

Y. Y. Lau, J. Krall, M. Friedman, V. Serlin

Proceedings Volume 1061, Microwave and Particle Beam Sources and Directed Energy Concepts; (1989) https://doi.org/10.1117/12.951776
Event: OE/LASE '89, 1989, Los Angeles, CA, United States

Abstract

This paper addresses several issues which are relevant to the high power klystron amplifier experiments at the Naval Research Laboratory. To a large extent, these issues originate from the DC self field of the intense beam and therefore are not treated in the conventional klystron theory. Among them include electrostatic insulation, limiting current which can flow through a gap in the presence of a biased gap voltage, and the modification of the transit time effects by the beam's space charge. We examine the proper interpretation of magnetic probe measurements of current modulation on an intense beam. Particle simulation of the large diameter beam yields excellent agreement with experiments and theory. Magnetic insulation in the coaxial rf extraction structure is shown to be adequate, in agreement with experimental observations.

Citation Download Citation

Y. Y. Lau, J. Krall, M. Friedman, and V. Serlin "On Certain Theoretical Aspects Of Relativistic Klystron Amplifiers", Proc. SPIE 1061, Microwave and Particle Beam Sources and Directed Energy Concepts, (25 July 1989); https://doi.org/10.1117/12.951776

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