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Filamentation instability of electron/ion beams in magnetized plasma waveguide

Published online by Cambridge University Press:  13 December 2013

A. Hasanbeigi ,
S. Moghani ,
S. Azimi  and
H. Mehdian
A. Hasanbeigi*
Affiliation:
Department of Physics and Institute for Plasma Research, Kharazmi University, 49 Dr. Mofateh Avenue, Tehran 15614, Iran
S. Moghani
Affiliation:
Department of Physics and Institute for Plasma Research, Kharazmi University, 49 Dr. Mofateh Avenue, Tehran 15614, Iran
S. Azimi
Affiliation:
Department of Physics and Institute for Plasma Research, Kharazmi University, 49 Dr. Mofateh Avenue, Tehran 15614, Iran
H. Mehdian
Affiliation:
Department of Physics and Institute for Plasma Research, Kharazmi University, 49 Dr. Mofateh Avenue, Tehran 15614, Iran
*
†Email address for correspondence: hbeigi@khu.ac.ir
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Abstract

The filamentation instability due to the interaction of two relativistic electron and ion beams with magnetized plasma in a waveguide is studied within the framework of a macroscopic cold fluid description. It is assumed that the background plasma provides charge and current neutralization of the injected beams. The dispersion relation is obtained by solving wave eigenvalue equation. The resulting dispersion equation is analyzed numerically over a wide range of system parameters. It is found that the velocity difference factor can strongly affect the filamentation instability.

Type
Papers
Information
Journal of Plasma Physics , Volume 80 , Issue 1 , February 2014 , pp. 81 - 87
Copyright
Copyright © Cambridge University Press 2013 

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