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Interaction of electromagnetic waves with a radially bounded electron beam

Published online by Cambridge University Press:  25 November 2005

C. KRAFFT ,
B. LUNDIN  and
A. VOLOKITIN
C. KRAFFT
Affiliation:
Laboratoire de Physique des Gaz et des Plasmas, Université Paris-Sud, 91405 Orsay Cedex, France ([email protected])
B. LUNDIN
Affiliation:
Institute of Terrestrial Magnetism, Ionosphere and Radiowave Propagation, Russian Academy of Sciences, Troitsk, Moscow Region, 142190, Russia
A. VOLOKITIN
Affiliation:
Institute of Terrestrial Magnetism, Ionosphere and Radiowave Propagation, Russian Academy of Sciences, Troitsk, Moscow Region, 142190, Russia
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Abstract

The resonant interaction of a narrow electron beam spiraling in a cold homogeneous magnetized plasma with electromagnetic cylindrical waves is considered. The conclusions derived in recent papers about the formation, in the presence of effective electromagnetic energy dissipation out of the radially bounded beam, of dynamically stable and longtime living bunches of resonant electrons in the developed stage of their nonlinear interaction with the waves are discussed in this paper for more general physical cases and for wider ranges of characteristic parameters. General analytical formulas for the excited electromagnetic fields, the radiated electromagnetic power flux and the linear growth rate as well as relevant numerical simulations results are presented.

Type
Papers
Information
Journal of Plasma Physics , Volume 72 , Issue 1 , February 2006 , pp. 11 - 33
Copyright
2005 Cambridge University Press

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