Sawtooth stabilization by localized electron cyclotron heating in the WT-3 tokamak

K. Hanada, T. Maehara, K. Makino, Y. Kishigami, T. Kishino, T. Minami, H. Tanaka, M. Iida, M. Nakamura, T. Maekawa, Y. Terumichi, S. Tanaka

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9 Citations (Scopus)

Abstract

The effect on sawtooth oscillations (STO) by localized electron-cyclotron- resonance heating (ECH) on the WT-3 tokamak [Plasma Physics and Controlled Nuclear Fusion Research, 1988 (International Atomic Energy Agency, Vienna, 1989), Vol. 1, p. 563] is studied. STO are strongly modified or stabilized by ECH near the q=1 surface, where q refers to the safety factor. The effect of ECH is much stronger when it is applied on the high-field side as compared to the low-field side. Further, even when ECH is applied outside the q=1 surface, the amplitude of STO decreases and STO stabilizes. In the very high qL discharge, the excitation of STO can be obtained by applying ECH.

Original languageEnglish
Pages (from-to)3675-3688
Number of pages14
JournalPhysics of Fluids B
Volume4
Issue number11
DOIs
Publication statusPublished - 1992
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Computational Mechanics
  • Condensed Matter Physics
  • Mechanics of Materials
  • Physics and Astronomy(all)
  • Fluid Flow and Transfer Processes

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