Formation of neoclassical internal transport barriers under various operational regimes on compact helical system

T. Minami, A. Fujisawa, H. Iguchi, S. Nishimura, K. Ida, M. Yokoyama, S. Murakami, Y. Yoshimura, M. Isobe, C. Suzuki, K. Nagaoka, T. Akiyama, M. Yoshinuma, A. Shimizu, C. Takahashi, K. Matsuoka, S. Okamura

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Optimization has been carried out on the operational regime where neoclassical internal transport barriers (N-ITBs) are formed. The condition of the forming N-ITB is sensitive to the location of the electron cyclotron heating resonance zone. A high electron temperature is obtained for the central heating (-2 cm < Rresonance < 2 cm). The variation of the magnetic axis location affects the formation of the N-ITB. The electron and ion temperatures at the magnetic axis location (Rax) of 94.9 cm are higher than those at 92.1 and 97.4 cm. This result indicates that the neoclassical flux and the created radial electric field are influenced by the magnetic field structure.

Original languageEnglish
Pages (from-to)A285-A290
JournalPlasma Physics and Controlled Fusion
Volume46
Issue number5 SUPPL. A
DOIs
Publication statusPublished - May 2004
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Nuclear Energy and Engineering
  • Condensed Matter Physics

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