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Abstract

Extensive simulations are performed to investigate effects of electron cyclotron instabilities on the gyrotron beam quality, using 2-dimensional axisymmetric particle-in-cell (PIC) codes. Both electrostatic and electromagnetic models, as well as realistic geometries of the gyrotron are considered. It is found that a large beam density can lead to an electrostatic-instability-induced energy spread which substantially degrades the gyrotron efficiency.

Additional information

Authors: TRAN T M, Ecole Polytechnique Fédérale de Lausanne, Centre de Recherche en Physique des Plasmas (CH);JOST G, Ecole Polytechnique Fédérale de Lausanne, Centre de Recherche en Physique des Plasmas (CH);APPERT K, Ecole Polytechnique Fédérale de Lausanne, Centre de Recherche en Physique des Plasmas (CH);ALBERTI S, Ecole Polytechnique Fédérale de Lausanne, Centre de Recherche en Physique des Plasmas (CH);PEDROZZI M, Ecole Polytechnique Fédérale de Lausanne, Centre de Recherche en Physique des Plasmas (CH)
Bibliographic Reference: Article: Physics of Plasmas (1997)
Record Number: 199710254 / Last updated on: 1997-04-01
Category: PUBLICATION
Original language: en
Available languages: en