Community Research and Development Information Service - CORDIS

Abstract

The efficiency of ICRH in TFR was limited in the 1981 experiments by an important influx of metallic impurities in the plasma core. Using carbon limiters and different materials for the antennas Faraday shield leads to a significant decrease of the metallic impurity content: in contrast with the previous results, the increase of temperature associated with the RF pulse remains now constant for more than 0.1 s. However, the power radiated by the metallic ions at the end of the RF pulse still reaches an appreciable fraction of the total RF power, particularly when using an antenna generating the RF wave from the low magnetic field side of the plasma. This effect is attributed to an interaction of the RF wave with the low density plasma located in the scrape-off layer.

Additional information

Authors: ADAM J C CEA, FONTENAY-AUX-ROSES (FRANCE), CEA, FONTENAY-AUX-ROSES (FRANCE)
Bibliographic Reference: WRITE TO CEA MENTIONING REPORT EUR-CEA-FC-1206 EN, 1983
Availability: Can be ordered online
Record Number: 1989122051500 / Last updated on: 1987-01-01
Category: PUBLICATION
Available languages: en