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28 GHZ EBW HEATING, CURRENT DRIVE AND EMISSION EXPERIMENTS AT THE WEGA STELLARATOR
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SYSNO ASEP 0360903 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title 28 GHZ EBW HEATING, CURRENT DRIVE AND EMISSION EXPERIMENTS AT THE WEGA STELLARATOR Author(s) Laqua, H.P. (DE)
Chlechowitz, E. (DE)
Glaubitz, M. (DE)
Marsen, S. (DE)
Stange, T. (DE)
Otte, M. (DE)
Zhang, D. (DE)
Preinhaelter, Josef (UFP-V) RID
Urban, Jakub (UFP-V) RIDSource Title Electron Cyclotron Emission and Electron Cyclotron Resonance Heating (EC-16):Proceedings of the 16th Joint Workshop. - Toh Tuck Link : World Scientific, 2011 - ISBN 978-981-4340-26-7 Pages s. 263-268 Number of pages 6 s. Publication form CD-ROM - CD-ROM Action Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Resonance Heating/16th./ Event date 12.04.2010-15.04.2010 VEvent location Sanya Country CN - China Event type WRD Language eng - English Country SG - Singapore Keywords Stellarator ; Electron Bernstein wave ; EBW ; WEGA ; ECRH Subject RIV BL - Plasma and Gas Discharge Physics R&D Projects 7G10072 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) LA08048 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) GA202/08/0419 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z20430508 - UFP-V (2005-2011) Annotation This paper reports on detailed investigation of a fully 28 GHz EBW (electron Bernstein wave) heated plasma in the WEGA stellarator. The plasma shows a fast transition into the “OXB-state” when the threshold density is reached. The profiles become peaked. The EBW emission diagnostic measures a radiation temperature of several keV, which origins from a supra-thermal electron population. The angular dependence of the mode conversion could be confirmed with a movable launching mirror. The toroidal current and the plasma conductivity were measured for different microwave launch positions. Workplace Institute of Plasma Physics Contact Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Year of Publishing 2012
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