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Time-resolved measurements and an analysis of the parallel velocity distribution function of the e-beam in a quasi-optical gyrotron based on electron cyclotron emission are presented. Since such measurements are performed at full beam parameters, perturbative effects (such as parasitic oscillations) in the beam tunnel are also observed, contrary to standard diagnostics using scaled e-beam parameters. Considerations on ECE-measurements of the e-beam energy spread, which may be caused by parasitic oscillations, are also discussed.

Additional information

Authors: ALBERTI S ET AL., Centre de Recherches en Physique des Plasmas, Ecole Polytechnique Fédérale de Lausanne (CH)
Bibliographic Reference: Article: Proceedings of the 20th International Conference on Infrared and Millimeter Waves (1995) pp. 3-4
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