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Anomalous Ion Diffusion and Radial-Electric-Field Generation in a Turbulent Edge Plasma Potential Weakly Correlated in Time and Space
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SYSNO ASEP 0374786 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Anomalous Ion Diffusion and Radial-Electric-Field Generation in a Turbulent Edge Plasma Potential Weakly Correlated in Time and Space Title Anomální iontová difúze a generace radiálního elektrického pole v slabě časově a prostorově korelovaném turbulentním potenciálu v okrajovém plazmatu tokamaku Author(s) Pánek, Radomír (UFP-V) RID
Krlín, Ladislav (UFP-V) RID
Tender, M. (SE)
Tskhakaya, D. (GE)
Kuhn, S. (AT)
Svoboda, Vojtěch (UFP-V)
Klíma, Richard (UFP-V)
Pavlo, Pavol (UFP-V) RID
Stöckel, Jan (UFP-V) RID
Petržílka, Václav (UFP-V) RID, ORCIDSource Title Physica Scripta. - : Institute of Physics Publishing - ISSN 0031-8949
Roč. 72, - (2005), s. 327-332Number of pages 6 Language eng - English Country SE - Sweden Keywords anomalous diffusion ; plasma turbulence Subject RIV BL - Plasma and Gas Discharge Physics CEZ AV0Z20430508 - UFP-V (2005-2011) UT WOS 000233084400007 DOI 10.1238/Physica.Regular.072a00327 Annotation Using a simple model of tokamak-edge-plasma turbulence in the form of a spatially periodic and time-independent electrostatic potential, we have found recently a new type of anomalous impurity diffusion in this regime. In the present contribution, we estimate this diffusion in the test-particle approach for a real turbulent potential obtained in an experiment. A significant difference in the impurity dynamics between the Hamiltonian and drift approaches is observed. As an interesting consequence of these dynamics, the possibility of radial-electric-field generation in the turbulence regimes, appears. This effect can be of importance in scenarios related to transport barriers Workplace Institute of Plasma Physics Contact Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Year of Publishing 2012
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