Role of parallel flow in the improved mode on the STOR-M tokamak

S Sen, C Xiao, A Hirose, R A Cairns

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28 Citations (Scopus)

Abstract

A novel feature of the H-mode induced by compact torus injection on the STOR-M tokamak is observed. There is almost no change in the radial electric field profiles during and after the L-H transition. The usual hypothesis of the E x B shear stabilization mechanism is therefore unlikely to play a role in this transition. A new mechanism of the stabilization of microinstabilities by parallel flow is suggested as the plausible cause for the transition to this improved regime.

Original languageEnglish
Article number185001
Number of pages4
JournalPhysical Review Letters
Volume88
Issue number18
DOIs
Publication statusPublished - 6 May 2002

Keywords

  • DRIFT WAVES
  • H-MODE
  • SHEAR
  • TRANSPORT
  • STABILITY

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