Transport barrier formation and bifurcation patterns of potential profiles in the compact helical system heliotron/torsatron

A. Fujisawa, H. Iguchi, T. Minami, Y. Yoshimura, K. Tanaka, K. Itoh, H. Sanuki, S. I. Itoh, M. Isobe, S. Nishimura, S. Okamura, K. Matsuoka, M. Fujiwara

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Abstract

In the compact helical system, several bifurcation patterns have been observed in potential profiles of electron-cyclotron-heated plasmas. In a bifurcation pattern with a strong shear of radial electric field, an internal transport barrier is confirmed to be established for electron thermal energy. Probabilistic treatment with realization of the pattern or internal transport barrier is discussed.

Original languageEnglish
Pages (from-to)A103-A108
JournalPlasma Physics and Controlled Fusion
Volume42
Issue numberSUPPL. 5A
DOIs
Publication statusPublished - Jan 1 2000

All Science Journal Classification (ASJC) codes

  • Nuclear Energy and Engineering
  • Condensed Matter Physics

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    Fujisawa, A., Iguchi, H., Minami, T., Yoshimura, Y., Tanaka, K., Itoh, K., Sanuki, H., Itoh, S. I., Isobe, M., Nishimura, S., Okamura, S., Matsuoka, K., & Fujiwara, M. (2000). Transport barrier formation and bifurcation patterns of potential profiles in the compact helical system heliotron/torsatron. Plasma Physics and Controlled Fusion, 42(SUPPL. 5A), A103-A108. https://doi.org/10.1088/0741-3335/42/5A/309