Numerical Calculation of “Actual” Radial Profile of Ion Temperature From 4’Measured” Energy Spectra of Charge-Exchanged Neutrals

Kazuo Nakamura, Naoji Hiraki, Kazuo Toi, Satoshi Itoh

Research output: Contribution to journalArticle

Abstract

The energy spectra of charge-exchanged neutrals are observed in the TRIAM-1 tokamak by vertical scanning of the neutral energy analyzer. The “apparent” ion temperature obtained directly from the energy spectrum observed in the peripheral region is much higher than that predicted by neoclassical transport theory. The “actual” ion.temperature profile is derived numerically from the energy spectra observed at various positions taking into account the wall-reflection effect of neutrals and the impermeability of the plasma. As a result, the “actual” ion temperature profile is found to agree well with that predicted by neoclassical transport theory.

Original languageEnglish
Pages (from-to)1368-1372
Number of pages5
JournalJapanese Journal of Applied Physics
Volume23
Issue number10
DOIs
Publication statusPublished - Oct 1984

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

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