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Gasdynamic description of electron-beam flying-off in a plasma

Published online by Cambridge University Press:  01 August 1998

V. N. MEL'NIK  and
E. P. KONTAR
V. N. MEL'NIK
Affiliation:
Institute of Radio Astronomy of National Academy of Sciences, 310002, Kharkov, Ukraine
E. P. KONTAR
Affiliation:
Kharkov State University, 310077, Kharkov, Ukraine
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Abstract

The propagation of one and two electron beams in a plasma is considered in the case when the source is time-dependent. When the electron-plasmon interaction time is assumed to be much less than the electron flying-off time, the main gasdynamic equations are obtained on the basis of the quasilinear theory of weak turbulence. The solution for a monoenergetic beam is a beam–plasma structure moving with constant velocity. In general, two beams propagate as two beam–plasma structures with constant velocities. However, the second electron beam influences the flying-off dynamics of both beams. This peculiar interaction modifies the shapes of the structures.

Type
Research Article
Information
Journal of Plasma Physics , Volume 60 , Issue 1 , August 1998 , pp. 49 - 64
Copyright
© 1998 Cambridge University Press

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