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Abstract

Experiments on plasma heating by RF in the ion cyclotron range of frequency have been performed on T.F.R. in various regimes, such as the mode conversion regime and the minority regime. The latest theoretical developments of ICRF modeling are presented and the experimental data obtained in a Deuterium plasma containing 20% or 5% of Hydrogen are reviewed. With 20% of Hydrogen a large increase of both ion and electron temperature is observed while the level of metallic impurity radiation has been considerably reduced using a Carbon limiter. With 5% of Hydrogen the location of the antenna system in the minor cross section produces no dramatic differences with respect to ion heating. Finally the metallic impurity production is examined and thus allows one to eliminate the Faraday shield of the antenna as the main source of pollution by heavy ions of the plasma.

Additional information

Authors: TFR GROUP CEA, DEPARTMENT DE RECHERCHES SUR LA FUSION CONTROLEE, FONTENAY-AUX-ROSES (FRANCE), CEA, DEPARTMENT DE RECHERCHES SUR LA FUSION CONTROLEE, FONTENAY-AUX-ROSES (FRANCE)
Bibliographic Reference: AVAILABILITY: CEA MENTIONING REPORT EUR-CEA-FC-1186 EN, 15 P., 9 FIG., 1983
Availability: Can be ordered online
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