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Comparison of the filament behaviour observed during type i ELMs in ASDEX upgrade and MAST

  • A. Kirk
  • , A. Herrmann
  • , B. Ayed
  • , T. Eich
  • , H. W. Muller
  • , G. F. Counsell
  • , S. Lisgo
  • , M. Price
  • , A. Schmid
  • , S. Tallents
  • , H. Wilson

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

A study of the evolution of the filaments observed during Type I ELMs on ASDEX Upgrade and MAST is presented. The filaments start off rotating toroidally/poloidally with velocities close to that of the pedestal. This velocity then decreases as the filaments propagate radially. On both devices the ion saturation current e-folding lengths of the filaments show a weak, if any, dependence on the size of the ELM (δWELM/Wped). On MAST the measured radial velocities of the filaments also show at most a weak dependence on δWELM/Wped.

Original languageEnglish
Article number012012
JournalJournal of Physics: Conference Series
Volume123
DOIs
StatePublished - 2008
Externally publishedYes

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