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Survey of Type I ELM dynamics measurements

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Author(s)

  • A. W. Leonard
  • N. Asakura
  • J. A. Boedo
  • M. Becoulet
  • G. F. Counsell
  • T. Eich
  • W. Fundamenski
  • A. Herrmann
  • L. D. Horton
  • Y. Kamada
  • A. Kirk
  • B. Kurzan
  • A. Loarte
  • J. Neuhauser
  • I. Nunes
  • N. Oyama
  • R. A. Pitts
  • G. Saibene
  • C. Silva
  • P. B. Snyder
  • H. Urano
  • M. R. Wade
  • H. R. Wilson
  • Pedestal Edge Phys ITPA Topical Gr

Department/unit(s)

Publication details

JournalPlasma Physics and Controlled Fusion
DatePublished - May 2006
Volume48
Number of pages14
Pages (from-to)A149-A162
Original languageEnglish

Abstract

This report summarizes Type I edge localized mode (ELM) dynamics measurements from a number of tokamaks, including ASDEX-Upgrade, DIII-D, JET, JT-60U and MAST, with the goal of providing guidance and insight for the development of ELM simulation and modelling. Several transport mechanisms are conjectured to be responsible for ELM transport, including convective transport due to filamentary structures ejected from the pedestal, parallel transport due to edge ergodization or magnetic reconnection and turbulent transport driven by the high edge gradients when the radial electric field shear is suppressed. The experimental observations are assessed for their validation, or conflict, with these ELM transport conjectures.

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