Local Measurements of Radial Plasma Velocity Fluctuations in the FT-2 Tokamak Using Equatorial Enhanced Scattering

A. D. Gurchenko*, E. Z. Gusakov, A. B. Altukhov, V. A. Ivanov, A. V. Sidorov, L. A. Esipov, T. P. Kiviniemi, D. V. Kouprienko, S. Leerink, S. I. Lashkul

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

Abstract

Abstract: The possibility of local measurement of the fluctuation level of the radial plasma velocity using equatorial enhanced scattering of a narrow microwave beam in the upper hybrid resonance in internal regions of tokamak plasma is demonstrated. Restrictions of the proposed method at the plasma periphery where the density fluctuation amplitude increases and small-angle scattering of microwaves by the fluctuations along the path to the upper hybrid resonance and back becomes significant are clarified.

Original languageEnglish
Pages (from-to)767-770
Number of pages4
JournalTechnical Physics Letters
Volume46
Issue number8
DOIs
Publication statusPublished - 1 Aug 2020
MoE publication typeA1 Journal article-refereed

Keywords

  • enhanced scattering
  • plasma
  • tokamak
  • velocity fluctuations

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