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Observations of low-frequency oscillations during relativistic-electron-beam-plasma interactions

Published online by Cambridge University Press:  13 March 2009

A. S. Paithankar  and
G. P. Gupta
A. S. Paithankar
Affiliation:
Neutron Physics Division, Bhabha Atomic Research Centre, Bombay-400 085, India
G. P. Gupta
Affiliation:
Laser and Plasma Technology Division, Bhabha Atomic Research Centre, Bombay-400085, India
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Abstract

During propagation of a relativistic electron beam in hydrogen gas at sub-torr pressures using a foil-less diode, low-frequency oscillations in the megahertz range are observed in the net current wave forms, and continue even after passage of the beam. The novel feature of the experiment is that both beam generation and propagation take place in the same low-pressure regime, and hence the beam parameters are functions of gas pressures. Analysis of the experimental results shows that the low-frequency oscillations result from the resistive-hose instability.

Type
Research Article
Information
Journal of Plasma Physics , Volume 46 , Issue 2 , October 1991 , pp. 237 - 246
Copyright
Copyright © Cambridge University Press 1991

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