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Investigation of electron Bernstein wave (EBW) coupling and its critical dependence on EBW collisional loss in high-β, H-mode ST plasmas
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SYSNO ASEP 0329125 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Investigation of electron Bernstein wave (EBW) coupling and its critical dependence on EBW collisional loss in high-β, H-mode ST plasmas Title Výzkum vazby elektronvých Bernsteinových vln (EBV) a její kritické závislosti na srážkových ztrátách vST plazmatu H-módu s vysokým β Author(s) Diem, S.J. (US)
Taylor, G. (US)
Caughman, J.B. (US)
Efthimion, P.C. (US)
Kugel, H.W. (US)
LeBlanc, B.P. (US)
Phillips, C.K. (US)
Preinhaelter, Josef (UFP-V) RID
Sabbagh, S.A. (US)
Urban, Jakub (UFP-V) RID
Wilgen, J.B. (US)Source Title Nuclear Fusion. - : Institute of Physics Publishing - ISSN 0029-5515
Roč. 49, č. 9 (2009), 095027-095027Number of pages 6 s. Publication form web - web Language eng - English Country AT - Austria Keywords Overdense plasma ; Conversion ; Emission ; Tokamaks ; Elektron Bernstein waves Subject RIV BL - Plasma and Gas Discharge Physics R&D Projects GA202/08/0419 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z20430508 - UFP-V (2005-2011) UT WOS 000272421700008 DOI 10.1088/0029-5515/49/9/095027 Annotation The electron Bernstein wave emission (EBE) diagnostics and modelling have been employed on the National Spherical Torus Experiment (NSTX) to study oblique EBW to O-mode (B–X–O) coupling and propagation in H-mode plasmas. EBE simulations show that EBW collisional damping prior to mode conversion (MC) in the plasma scrape off reduces the coupling efficiency during the H-mode. Lithium conditioning increased the measured B–X–O coupling efficiency from less than 10% to 60%, consistent with EBE simulations. Workplace Institute of Plasma Physics Contact Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Year of Publishing 2010
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