Plasma-confinement physics study in compact helical system

S. Okamura, T. Akiyama, A. Fujisawa, K. Ida, H. Iguchi, R. Ikeda, M. Isobe, Y. Jinguji, T. Kobuchi, K. Matsuoka, H. Matsushita, T. Minami, S. Mizuno, K. Nagaoka, K. Nakamura, H. Nakano, S. Nishimura, S. Ohshima, A. Shimizu, C. SuzukiC. Takahashi, M. Takeuchi, K. Toi, Y. Yoshimura, M. Yoshinuma, S. Kado, K. Matsuo, T. Oishi

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1 Citation (Scopus)

Abstract

In a CHS experiment, various types of transport barrier have been studied. An internal transport barrier (ITB) for electrons in a stellarator was first found in CHS, and the ITB for improved ion confinement was also found. H-mode (edge transport barrier) study in CHS showed many common features in transition to tokamak experiments, although the magnetic surface quantities are very different. Discharges with a combination of ETB and ITB were also found. Two heavy ion beam diagnostics in CHS showed a new direct measurement of zonal flow structure in toroidal confinement. The relation between the fluctuation and the transport barrier was also studied.

Original languageEnglish
Pages (from-to)S68-S74
JournalJournal of the Korean Physical Society
Volume49
Issue numberSUPPL. 1
Publication statusPublished - Dec 1 2006

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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