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Wave interaction and low-frequency magnetic field generation in planar free-electron lasers

Published online by Cambridge University Press:  13 March 2009

F. B. Rizzato
F. B. Rizzato
Affiliation:
Institute for Physical Science and Technology, University of Maryland, College Park, 20742, U.S.A.
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Abstract

In recent work by the present author the full dispersion relation for multi-dimensional perturbations propagating in saturated free-electron lasers was derived. A number of approximations were used in order to derive a simplified description of the unstable modes. Although this simplified analysis was shown to be appropriate for quasi-transverse modes, it was not possible to describe the generic case of non-transverse ones. In the present paper, via a numerical analysis of this dispersion relation, we argue that a considerable number of modes do indeed not satisfy the quasi-transversality condition. The generation of low-frequency maenetic fields is also analysed.

Type
Research Article
Information
Journal of Plasma Physics , Volume 44 , Issue 3 , December 1990 , pp. 483 - 488
Copyright
Copyright © Cambridge University Press 1990

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References

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