Effects of magnetic islands on poloidal flow in TU-Heliac

Yu Sato, Sumio Kitajima, Yasuhiro Suzukil, Takanori Ambo, Keiichi Ishii, Mamoru Kanno, Jo Tachibana, Shigeru Inagaki, Masayuki Yokoyama, Hiromi Takahashi, Masakazu Takayama, Atsushi Okamoto, Mamiko Sasao

Research output: Contribution to journalArticle

Abstract

The Tohoku University Heliac (TU-Heliac) surveyed the effects of island width on poloidal plasma flow. We determine that poloidal flow is driven externally by hot cathode biasing and an m = 3 magnetic island was produced by two pairs of external perturbation field coils. The electrode current required for poloidal flow at the plasma periphery jumping point increases with island width expansion and shows weak dependency at the core region of the plasma. These dependencies suggest that the magnetic island located at the plasma periphery affects poloidal flow as a drag term.

Original languageEnglish
Article number2402144
JournalPlasma and Fusion Research
Volume6
Issue number1 SPECIAL ISSUE
DOIs
Publication statusPublished - 2011 Dec 1
Externally publishedYes

Keywords

  • Electrode bias
  • Heliac
  • Magnetic island
  • Perturbation field
  • Stellarator

ASJC Scopus subject areas

  • Condensed Matter Physics

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  • Cite this

    Sato, Y., Kitajima, S., Suzukil, Y., Ambo, T., Ishii, K., Kanno, M., Tachibana, J., Inagaki, S., Yokoyama, M., Takahashi, H., Takayama, M., Okamoto, A., & Sasao, M. (2011). Effects of magnetic islands on poloidal flow in TU-Heliac. Plasma and Fusion Research, 6(1 SPECIAL ISSUE), [2402144]. https://doi.org/10.1585/pfr.6.2402144