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Thermal flux reduction by electromagnetic instabilities

Published online by Cambridge University Press:  13 March 2009

Toshio Okada ,
Takashi Yabe  and
Keishiro Niu
Toshio Okada
Affiliation:
Department of Applied Physics, Tokyo University of Agriculture and Technology, Koganei, Tokyo, Japan
Takashi Yabe
Affiliation:
Department of Energy Sciences, Tokyo Institute of Technology, Meguro-Ku, Tokyo, Japan
Keishiro Niu
Affiliation:
Department of Energy Sciences, Tokyo Institute of Technology, Meguro-Ku, Tokyo, Japan
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Abstract

From a dispersion relation, linear growth rates of electromagnetic instabilities are obtained in an electron plasma whose velocity distribution function has a high-energy tail. Theory is developed to derive the reduction in the thermal flux caused by these electromagnetic instabilities. Nonlinear theory leads to the saturation level of instabilities. Numerical simulations are carried out using a particle-in-cell method. The reduction in thermal conduction predicted by the theory is found to be in good agreement with computer simulations.

Type
Research Article
Information
Journal of Plasma Physics , Volume 20 , Issue 3 , December 1978 , pp. 405 - 417
Copyright
Copyright © Cambridge University Press 1978

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References

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