THE DESIGN OF HIGH POWER TETRODES FOR ICRH APPLICATIONS
The present developments in plasma fusion research show a trend towards an almost continuous plasma heating requirement. The pulse length foreseen on TORE SUPRA project is between 30 and 210 seconds. Power tetrodes used for cyclotronic heating must be built in order to sustain stresses during normal operation which depend on four parameters: - output power - VSWR - upper operating frequency - pulse length. The outcoming tetrode is a trade-off between contradictory constraints depending on these four parameters. The calculation of the power dissipated on each electrode resulting from a theoretical approach to the problem allows to determine the thermal stress on each part of the tube. Tube design and materials can be selected in order to reduce and to withstand these stresses.
Bibliographic Reference: 14TH SOFT CONFERENCE, AVIGNON (FRANCE), SEPT. 8-12, 1986 VOL. 1, PP. 835-839 1895 P., 1986, VOL. 1 AND VOL. 2, ISBN 0 08 034935 8 WRITE TO PERGAMON PRESS, HEADINGTON HILL HALL, OXFORD, OX3 0BW (UK), PRICE: UKL 220 (FOR BOTH VOLS.)
Record Number: 1989126042201 / Last updated on: 1989-01-01
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