Scaling of power threshold for edge transport barrier formation in CHS with density, magnetic field and magnetic configuration

T. Akiyama, S. Okamura, T. Minami, akihide fujisawa, T. Oishi, S. Kado, M. Takeuchi, K. Toi, K. Ida, M. Yoshinuma, K. Matsuoka, M. Isobe, S. Nishimura, C. Suzuki, Y. Yoshimura, K. Nagaoka, C. Takahashi

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Abstract

An improved confinement state by the formation of an edge transport barrier can be obtained in the compact helical system. A power threshold exists, as is the case for the H-mode in tokamaks. The threshold scales as . These dependences are similar to those in tokamaks. The threshold also depends on magnetic configuration parameters such as the position of the magnetic axis. The absolute value of the threshold is 1-3 times larger than the tokamak H-mode power scaling.

Original languageEnglish
Article number009
Pages (from-to)1683-1692
Number of pages10
JournalPlasma Physics and Controlled Fusion
Volume48
Issue number11
DOIs
Publication statusPublished - Nov 1 2006
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Nuclear Energy and Engineering
  • Condensed Matter Physics

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