Evolution of filament structures during edge-localized modes in the MAST tokamak

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Evolution of filament structures during edge-localized modes in the MAST tokamak

Kirk, Andrew; Koch, B.; Scannell, Rory; Wilson, H. R.; Counsell, G.; Dowling, J.; Herrmann, A.; Martin, R.; Walsh, M.
Date: 2006
Copyright: © 2006, American Physical Society
Related: https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.96.185001
Citation: the, M. t., Kirk, A., Koch, B., Scannell, R., Wilson, H. R., Counsell, G., Dowling, J., Herrmann, A., Martin, R. and Walsh, M. (2006) 'Evolution of filament structures during edge-localized modes in the MAST tokamak', Physical Review Letters, 96(18), 185001 (4pp). doi: 10.1103/PhysRevLett.96.185001
Published Version: 10.1103/PhysRevLett.96.185001

Abstract:

Edge-localized modes (ELMs) are repetitive instabilities that occur in the outer region of tokamak plasmas. This Letter provides new information on and the implications of the evolution of the filament structures observed during ELMs in the MAST tokamak. The filaments exist for the time over which particles are being released into the scrape off layer. They start off at the plasma edge rotating at the velocity of the pedestal, and then decelerate toroidally and accelerate radially outwards. As the filaments propagate radially they remain aligned with the local magnetic field line.

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