LOWER HYBRID ELECTRON HEATING AND CURRENT DRIVE IN LARGE TOKAMAKS - APPLICATION TO TORE-SUPRA
Wave injection at a frequency close to the lower hybrid frequency in configuration of the tokamak type, has shown its potential and flexibility for the heating of plasma ions and electrons as much for current generation. Numerous studies have pointed out the advantages and possibilities for operating tokamaks in a steady state. One of the objectives of TORE SUPRA is to study the current generation by launching lower hybrid waves in the direction of the electric field. TORE SUPRA has a reasonable size and the proper characteristics to investigate the long term stability of wave driven plasma currents and to tackle the crucial question as to whether or not the energy spent in driving the current will remain at an acceptable level. A simulation model for lower hybrid current drive and electron heating in toroidal devices which includes a zero-dimensional code for energy balance and current generation and a simplified electrical circuit model has been developed. Optimum HF and plasma parameters are obtained as a function of the electron plasma densities for a possible operation scenario of TORE SUPRA.
Bibliographic Reference: 4TH INTERNATIONAL SYMPOSIUM ON HEATING IN TOROIDAL PLASMAS, ROMA (ITALY), MARCH 21-28, 1984 VOL. I, PP. 721 - 730 1478 P., VOL. I AND VOL. II, 1984 WRITE TO MONOTYPIA FRANCHI, ST. LUCIA - VIALE UMBRIA NO. 28, 06012 CITTA DI CASTELLO, PERUGIA (ITALY), PRIC
Record Number: 1989124070400 / Last updated on: 1987-01-01
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