Transport of edge localized modes energy and particles into the scrape off layer and divertor of DIII-D

Research output: Contribution to journalArticle

Researchers

  • A. W. Leonard
  • T. H. Osborne
  • M. E. Fenstermacher
  • R. J. Groebner
  • Mathias Groth

  • C. J. Lasnier
  • M. A. Mahdavi
  • T. W. Petrie
  • P. B. Snyder
  • J. G. Watkins
  • L. Zeng

Research units

  • Lawrence Livermore National Laboratory
  • General Atomics
  • Sandia National Laboratories
  • University of California at Los Angeles

Abstract

The reduction in size of Type I edge localized modes (ELM) with increasing density was explored for the purpose of studying the underlying transport of ELM energy. The conductive transport from the pedestal during an ELM decreased with increasing density, while the convective transport remained nearly constant. Magnetohydrodynamics (MHD) analysis of these discharges suggested that the smaller ELMs resulted from both a loss of edge bootstrap current at higher collisionality, and a narrower pedestal at high density.

Details

Original languageEnglish
Pages (from-to)1765-1772
Number of pages8
JournalPhysics of Plasmas
Volume10
Issue number5 II
Publication statusPublished - May 2003
MoE publication typeA1 Journal article-refereed

ID: 4055472