A Compact Accelerator Powered By The Relativistic Klystron Amplifier

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

doi:10.1117/12.951828

25 July 1989 A Compact Accelerator Powered By The Relativistic Klystron Amplifier

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

Proceedings Volume 1061, Microwave and Particle Beam Sources and Directed Energy Concepts; (1989) https://doi.org/10.1117/12.951828
Event: OE/LASE '89, 1989, Los Angeles, CA, United States

Abstract

The high field-gradient accelerator employs two beams of electrons which interact through an RF structure. The first, a large-diameter modulated intense relativistic electron beam (MIREB), generates an electromagnetic field which in turn accelerates a second beam. This effect is large, only, when the second beam is much weaker and shorter in duration than the first. The accelerating structure is designed in a way to produce a resonance interaction with the MIREB, leading to the energy transfer from the beam to the structure. The electromagnetic wave induced in the structure, converges radially, generating an average electric field of the order of 100 MV/m on the axis. The short duration of the MIREB pulse (140 nsec) allows us to establish these high electric fields in the accelerating region and complete the acceleration before breakdown can occur. A secondary particle beam is injected on the axis and accelerated by the high electric field. This particle beam can be initiated and controlled by a modulated laser light, phase-locked to the RF source used to modulate the MIREB. The high power RF established in the structure by the MIREB allows acceleration of up to 100 Amps of electrons, in the present experimental configuration. Preliminary results show electron acceleration of at least 3MeV with a beam current of about 100 Amps.

Citation Download Citation

V. Serlin, M. Friedman, Y. Y. Lau, and J. Krall "A Compact Accelerator Powered By The Relativistic Klystron Amplifier", Proc. SPIE 1061, Microwave and Particle Beam Sources and Directed Energy Concepts, (25 July 1989); https://doi.org/10.1117/12.951828

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KEYWORDS

Modulation

Electrons

Particle beams

Electron beams

Amplifiers

Magnetism

Directed energy weapons

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