Estimation of plasma elongation and position on noncircular tokamak triam-1m

Shin Ichi Moriyama, Kazuo Nakamura, Shoji Kawasaki, Eriko Jotaki, Akihiro Nagao, Yukio Nakamura, Naoji Hiraki, Satoshi Itoh

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4 Citations (Scopus)


A method of estimating the plasma elongation and position using the magnetic field picked up by magnetic coils is described. The method is based on the approximate solution for the Grad-Shafranov equation including the effect of the eddy current on the resistive shell. When this method was applied to noncircular plasmas on TRIAM-1M, the analytical results were found to be in good agreement with the plasma shape observed by a TV camera and with the outermost magnetic surface obtained through the calculation of an MHD equilibrium code. This approach is suitable for the real-time analysis and feedback control of plasma shape in a noncircular tokamak.

Original languageEnglish
Pages (from-to)1479-1485
Number of pages7
JournalJapanese journal of applied physics
Issue number8R
Publication statusPublished - Aug 1 1989

All Science Journal Classification (ASJC) codes

  • General Engineering
  • General Physics and Astronomy


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