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Numerical simulations for intense light-ion beam propagation in a channel under the influence of plasma inertia

Published online by Cambridge University Press:  09 March 2009

Shigeo Kawata
Affiliation:
Department of Energy Sciences, The Graduate School at Nagatsuta, Tokyo Institute of Technology, Nagatsuta, Midori-ku, Yokohama 227, Japan
Keishiro Niu
Affiliation:
Department of Energy Sciences, The Graduate School at Nagatsuta, Tokyo Institute of Technology, Nagatsuta, Midori-ku, Yokohama 227, Japan

Abstract

Intense light-ion beam (LIB) propagation through a plasma channel is numerically investigated by using a two-dimensional simulation code. Analyses are given for the LIB propagation which couples with the motion of the channel plasma. Although the electron back current neutralizes the LIB current under typical beam and channel plasma conditions, the Lorentz force of the electron back current expands the LIB radially. The expansion of the LIB depends strongly on the density of the channel plasma. A strong current of the order of 1 MA is shown to propagate stably in an argon plasma channel.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1983

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References

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