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Abstract

Optimisation studies for resonator cavities of quasi-optical gyrotrons have been carried out. With the constraint that the RF field is limited by peak power load on the mirrors, the electronic efficiency can have a value up to 10% higher than the confocal results by using spherical mirrors with g=1-d/R close to -1. Optimised nonspherical cavities yield similar results. When output coupling through circular slots is considered, confocal (g=0) as well as more extreme designs near the resonator stability boundary are less favourable and the optimum configurations found are spherical mirrors with g-factors of about -0.3, -0.6, and possibly -0.75.

Additional information

Authors: ISAAK B, CENTRE DE RECHERCHES EN PHYSIQUE DES PLASMAS, ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE, 21 AVENUE DES BAINS, 1007 LAUSANNE (CH);BONDESON A, CENTRE DE RECHERCHES EN PHYSIQUE DES PLASMAS, ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE, 21 AVENUE DES BAINS, 1007 LAUSANNE (CH);TRAN M Q, CENTRE DE RECHERCHES EN PHYSIQUE DES PLASMAS, ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE, 21 AVENUE DES BAINS, 1007 LAUSANNE (CH);PERRENOUD A, CENTRE DE RECHERCHES EN PHYSIQUE DES PLASMAS, ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE, 21 AVENUE DES BAINS, 1007 LAUSANNE (CH);ALBERTI S, CENTRE DE RECHERCHES EN PHYSIQUE DES PLASMAS, ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE, 21 AVENUE DES BAINS, 1007 LAUSANNE (CH);MUGGLI P CENTRE DE RECHERCHES EN PHYSIQUE DES PLASMAS, ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE, 21 AVENUE DES BAINS, 1007 LAUSANNE (CH), CENTRE DE RECHERCHES EN PHYSIQUE DES PLASMAS, ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE, 21 AVENUE DES BAINS, 1007 LAUSANNE (CH)
Bibliographic Reference: REPORT: LRP 305/86 (1989) AVAILABLE FROM CONFEDERATION SUISSE, CENTRE DE RECHERCHES EN PHYSIQUE DES PLASMAS, ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE, 21 AVENUE DES BAINS, CH-1007 LAUSANNE (CH)
Record Number: 1989128011300 / Last updated on: 1990-11-09
Category: PUBLICATION
Available languages: en