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Proceedings Paper

Dynamics of electron beam instability development in microwave sources
Author(s): Eduard Vardges Rostomyan
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Paper Abstract

Evolution of initial perturbation in the case of electron beam instability development in various systems is investigated generally. The approach is based on equation for slowly varying amplitude of induced wave packet. It is shown that the space-time dynamics of fields in the case of beam instability development is described by partial differential equation of third order independently on system geometry, presence of external fields, specific parameters etc. This equation is solved and analytical expression for fields' space-time structure is obtained and analyzed. The shape of induced wave packet is presented. The velocities of unstable perturbations vary between the group velocity of resonant wave (without beam) and beam velocity. The dependence of the growth rates of the perturbations from their velocities is obtained.

Paper Details

Date Published: 14 July 2000
PDF: 12 pages
Proc. SPIE 4031, Intense Microwave Pulses VII, (14 July 2000); doi: 10.1117/12.391806
Show Author Affiliations
Eduard Vardges Rostomyan, Institute of Radiophysics and Electronics (Armenia)

Published in SPIE Proceedings Vol. 4031:
Intense Microwave Pulses VII
Howard E. Brandt, Editor(s)

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