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Electron-Bernstein-wave (EBW) current drive in an overdense plasma was demonstrated at the Wendelstein 7-AS stellarator for the first time. The EBWs were generated by O-X-B mode conversion. The relatively high current drive efficiency was consistent with theoretical predictions. The experiments provided first investigations of EBW phase space interaction for wave refractive indices much larger than unity.

Additional information

Authors: LAQUA H P ET AL, Max-Planck-Institut für Plasmaphysik, Teilinstitut Greifswald, EURATOM Association, Greifswald (DE);KASPAREK W ET AL, Institut für Plasmaforschung, Universität Stuttgart, Stuttgart (DE)
Bibliographic Reference: An article published in: Physical Review Letters, 90, 075003 (2003).
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