DESIGN OF A QUASI-OPTICAL 120 GHZ GYROTRON
Within the framework of the EURATOM gyrotron development programme for ECR heating of fusion plasmas, the Centre de Recherches en Physique des Plasmas and the Laboratoire d'Electromagnetisme et d'Acoustique of the Ecole Polytechnique Federale de Lausanne (EPFL) and the Electron Tube Department of Brown, Boveri, Baden, have started in 1983 a joint project to develop a quasi-optical gyrotron and gyroklystron operating at 120 GHz and at a power level of 200 kW. After the completion of a new laboratory in Ecublens, near Lausanne, and the assembly of the modular gyrotron test stand, a first proof of principle experiment shall be performed before the end of this year. Limiting the beam pulse duration to 100 mus will allow the use of radiation cooled resonator mirrors and collector. In 1986 the pulse duration will be extended (up to 10 ms) and will be followed by the experimental investigation of the quasi-optical gyroklystron concept. In this paper the technical features of the tube components recently developed and manufactured by BBC are presented. They include an SF-6 insulated magnetron injection gun for the generation of a 700 kW electron beam, the various beam guiding sections, the resonator mirrors with their remotely controlled alignment mechanism and a test collector to monitor the power deposition profile of the beam. First cold test results of the components are shown.
Bibliographic Reference: COURSE AND WORKSHOP ON APPLICATIONS OF RF WAVES TO TOKAMAK PLASMAS, VARENNA (ITALY), SEPT. 5-14, 1985 WRITE TO CEC LUXEMBOURG, DG XIII/A2, POB 1907 MENTIONING PAPER E 32187 ORA
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Record Number: 1989124003300 / Last updated on: 1987-01-01
Available languages: en