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Physics of Penetration of Resonant Magnetic Perturbations Used for Type I Edge Localized Modes Suppression in Tokamaks
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SYSNO ASEP 0333528 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Physics of Penetration of Resonant Magnetic Perturbations Used for Type I Edge Localized Modes Suppression in Tokamaks Title Fyzika průniku rezonantních magnetických perturbací používaných pro potlačení okrajově lokalizovaných modů typu I v tokamacích Author(s) Bécoulet, M. (FR)
Huysmans, G. (FR)
Garbet, X. (FR)
Nardon, E. (GB)
Howell, D. (GB)
Garofalo, A. (US)
Schaffer, M. (US)
Evans, T. (US)
Shaing, K. (TW)
Cole, A. (US)
Park, J.-K. (US)
Cahyna, Pavel (UFP-V) RIDSource Title Nuclear Fusion. - : Institute of Physics Publishing - ISSN 0029-5515
Roč. 49, č. 8 (2009), 085011-085011Number of pages 13 s. Publication form web - web Action IAEA Fusion Energy Conference/22nd./ Event date 13.10.2008-18.10.2008 VEvent location Geneva Country CH - Switzerland Event type WRD Language eng - English Country AT - Austria Keywords resonant magnetic perturbations ; ELM control ; neoclassical toroidal viscosity ; mode penetration Subject RIV BL - Plasma and Gas Discharge Physics CEZ AV0Z20430508 - UFP-V (2005-2011) UT WOS 000268936800011 DOI 10.1088/0029-5515/49/8/085011 Annotation Non-linear reduced MHD modelling of the toroidally rotating plasma response to resonant magnetic perturbations (RMPs) is presented for DIII-D and ITER-like typical parameter and RMP coils. The non-linear cylindrical reduced MHD code was adapted to take into account toroidal rotation and plasma braking mechanisms such as resonant one and the neoclassical toroidal viscosity (NTV) calculated for low collisionality regimes ('1/ν' and 'ν'). Counter toroidal rotation by NTV is predicted for ITER with the proposed RMP coils in 1/ν-limit. Resonant braking is localized near resonant surfaces and is weak compared with NTV in the 1/ν regime for typical DIII-D and ITER parameters. Toroidal rotation leads to the effective screening of RMPs that is larger for stronger rotation and lower resistivity, resulting mainly in central islands screening. Non-resonant helical harmonics in RMP spectrum are not influenced by plasma rotation, and hence penetrate and are important in NTV mechanism. Workplace Institute of Plasma Physics Contact Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Year of Publishing 2010
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