Definition of the profile gain factor and its application for internal transport barrier analysis in torus plasmas

Lhd Experiment Group

研究成果: Contribution to journalArticle査読

2 被引用数 (Scopus)

抄録

In this paper, a new criterion for the internal transport barrier (ITB) formation is proposed by defining a unique scalar parameter, the profile gain factor. The profile gain factor shows degree of the confinement improvement with respect to an arbitrary reference temperature profile in the L-mode. As the reference L-mode profile for the large helical device (LHD), the edge ion temperature profile data is extrapolated to the core by the L-mode profile function, which is characterized by the thermal diffusion coefficient being proportional to the local ion temperature. The profile gain factor is defined as the ratio of the ion stored energy experimentally measured to that evaluated from the reference L-mode profile. The proposed method is applied to the LHD experimental data, and its capability for quantification of the ITB strength is demonstrated.

本文言語英語
論文番号085005
ジャーナルPlasma Physics and Controlled Fusion
61
8
DOI
出版ステータス出版済み - 6 17 2019

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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