Electron Bernstein wave heating and current drive in overdense plasmas at the W7-AS stellarator
Autor: | W As Team, ECRH-Group, H. Maassberg, Francesco Volpe, H. P. Laqua |
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Rok vydání: | 2003 |
Předmět: | |
Zdroj: | Nuclear Fusion. 43:1324-1328 |
ISSN: | 1741-4326 0029-5515 |
DOI: | 10.1088/0029-5515/43/11/004 |
Popis: | Successful heating experiments with second, third and fourth harmonic 140 GHz electron Bernstein waves (EBWs) were performed at an extremely high density of above 3 × 1020 m−3 at Wendelstein7-AS (W7-AS). The EBWs were generated by OXB-mode conversion. At medium densities of 1 × 1020 m−3, efficient current drive with first harmonic 70 GHz EBWs could be demonstrated in an overdense plasma for the first time. |
Databáze: | OpenAIRE |
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