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Title: Evolution of Filament Structures during Edge-Localized Modes in the MAST Tokamak

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.

Authors:
; ; ; ;  [1];  [2];  [3];  [1];  [4];  [5];  [6]
  1. EURATOM/UKAEA Fusion Association, Culham Science Centre, Abingdon, Oxon OX14 3DB (United Kingdom)
  2. Institut fuer Physik der Humboldt-Universitaet zu Berlin (Germany)
  3. (Germany)
  4. (Ireland)
  5. University of York, Heslington, York YO10 5DD (United Kingdom)
  6. Max-Planck-Institut fuer Plasmaphysik, EURATOM Association, Garching (Germany)
Publication Date:
OSTI Identifier:
20775238
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review Letters; Journal Volume: 96; Journal Issue: 18; Other Information: DOI: 10.1103/PhysRevLett.96.185001; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; EDGE LOCALIZED MODES; EVOLUTION; FILAMENTS; MAGNETIC FIELDS; MAST TOKAMAK; PLASMA; PLASMA CONFINEMENT; PLASMA SCRAPE-OFF LAYER

Citation Formats

Kirk, A., Counsell, G., Dowling, J., Martin, R., Walsh, M., Koch, B., Max-Planck-Institut fuer Plasmaphysik, EURATOM Association, Garching, Scannell, R., Department of Electrical and Electronic Engineering, University College Cork, Association EURATOM-DCU, Wilson, H. R., and Herrmann, A.. Evolution of Filament Structures during Edge-Localized Modes in the MAST Tokamak. United States: N. p., 2006. Web. doi:10.1103/PhysRevLett.96.185001.
Kirk, A., Counsell, G., Dowling, J., Martin, R., Walsh, M., Koch, B., Max-Planck-Institut fuer Plasmaphysik, EURATOM Association, Garching, Scannell, R., Department of Electrical and Electronic Engineering, University College Cork, Association EURATOM-DCU, Wilson, H. R., & Herrmann, A.. Evolution of Filament Structures during Edge-Localized Modes in the MAST Tokamak. United States. doi:10.1103/PhysRevLett.96.185001.
Kirk, A., Counsell, G., Dowling, J., Martin, R., Walsh, M., Koch, B., Max-Planck-Institut fuer Plasmaphysik, EURATOM Association, Garching, Scannell, R., Department of Electrical and Electronic Engineering, University College Cork, Association EURATOM-DCU, Wilson, H. R., and Herrmann, A.. Fri . "Evolution of Filament Structures during Edge-Localized Modes in the MAST Tokamak". United States. doi:10.1103/PhysRevLett.96.185001.
@article{osti_20775238,
title = {Evolution of Filament Structures during Edge-Localized Modes in the MAST Tokamak},
author = {Kirk, A. and Counsell, G. and Dowling, J. and Martin, R. and Walsh, M. and Koch, B. and Max-Planck-Institut fuer Plasmaphysik, EURATOM Association, Garching and Scannell, R. and Department of Electrical and Electronic Engineering, University College Cork, Association EURATOM-DCU and Wilson, H. R. and Herrmann, A.},
abstractNote = {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.},
doi = {10.1103/PhysRevLett.96.185001},
journal = {Physical Review Letters},
number = 18,
volume = 96,
place = {United States},
year = {Fri May 12 00:00:00 EDT 2006},
month = {Fri May 12 00:00:00 EDT 2006}
}