OPTIMIZATION OF ICRH POWER DEPOSITION PROFILES IN THE INTOR TOKAMAK BY K-' SHAPING
Using a 2-D antenna - plasma coupling code and a 3-D tracing code, ion - cyclotron resonance heating (ICRH) generated power deposition profiles of INTOR Tokamak are optimized with the criteria that the absorption be single pass and that RF heats the plasma core avoiding the edge heating. A 2 x 2 ICRH antenna configuration with a pi-phasing both in the y and z array and the choice of 3 lambda/4 antennas in the y-direction is found to produce central RF power deposition profiles of deuterium second harmonic heating. With the above k-"-shaping, the entire power spectrum (peaked at k-" congruent 5m**-1) radiated by the antenna is centrally absorbed in the plasma. The decrease in the coupling and the consequent increase in the maximum voltage on the antenna to couple a given amount of power does not seem to be alarming.
Bibliographic Reference: 4TH INTERNATIONAL SYMPOSIUM ON HEATING IN TOROIDAL PLASMAS, ROMA (ITALY), MARCH 21-28, 1984 VOL. I, PP. 291- 302 1478 P., VOL. I AND VOL. II, 1984 WRITE TO MONOTYPIA FRANCHI, ST. LUCIA + VIALE UMBRIA NO. 28, 06012 CITTA DI CASTELLO, PERUGIA (ITALY), USD 6
Record Number: 1989124025100 / Last updated on: 1987-01-01
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