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Abstract

The presence of an electron beam in a quasi-optical gyrotron cavity alters the structure of the fields from that of the empty cavity. A computer code has been written which calculates this alteration for either an electron beam or a thin dielectric tube placed in the cavity. Experiments measuring the quality factor of such a cavity were performed for the case of a dielectric tube and the results agree with the predictions of the code. Simulations of the case of an electron beam indicate that self-consistent effects can be made small since almost all of the power leaves the cavity in a symmetric Gaussian-like mode provided the resonator parameters are chosen carefully.

Additional information

Authors: ANTONSEN T M, University of Maryland at College Park, Laboratory for Plasma Research (US);BONDESON A ET AL., Centre de Recherches en Physique des Plasmas, Ecole Polytechnique Fédérale de Lausanne (CH)
Bibliographic Reference: Report: LRP 473/93 EN (1993) 36 pp.
Availability: Available from Confédération Suisse, Centre de Recherches en Physique des Plasmas, Ecole Polytechnique Fédérale de Lausanne, 21 avenue des Bains, 1007 Lausanne (CH)
Record Number: 199310734 / Last updated on: 1994-11-29
Category: PUBLICATION
Original language: en
Available languages: en
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