Magnetic field structure preferable to E × B shear flow generation in a quasi-axisymmetric stellarator CHS-qa

C. Suzuki, K. Ida, A. Fujisawa, A. Shimizu, S. Okamura, S. Nishimura, M. Isobe, I. Nomura, K. Matsuoka

研究成果: Contribution to journalConference article査読

4 被引用数 (Scopus)

抄録

Viscous damping and effective helical ripple have been quantitatively estimated for a proposed quasi-axisymmetric stellarator CHS-qa configuration. It is predicted that viscous damping against plasma flow in CHS-qa is low enough to sustain large E × B shear as observed in the H-modes and internal transport barriers in many tokamaks. Effective helical ripple in CHS-qa is adjusted to be on the order of 10-2 or lower, which is suitable to trigger transport barriers due to non-ambipolar neoclassical fluxes peculiar to conventional helical devices. For experimental flexibility, viscous damping and effective helical ripple in CHS-qa can be extensively controlled over a range of about one order by modifying modular coil currents.

本文言語英語
ページ(範囲)A225-A230
ジャーナルPlasma Physics and Controlled Fusion
44
5 A
DOI
出版ステータス出版済み - 5 2002
外部発表はい
イベント8th IAEA Technical Committee Meeting on H-Mode Physics and Transport Barriers - Toki, 日本
継続期間: 9 5 20019 7 2001

All Science Journal Classification (ASJC) codes

  • 原子力エネルギーおよび原子力工学
  • 凝縮系物理学

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