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A change in the characteristics of fluctuations of the boundary plasma parameters in the FT-2 tokamak upon transition to the improved plasma confinement regime

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Abstract

Processes in the boundary (near-wall) plasma of the FT-2 tokamak upon transition into an improved plasma confinement regime under the action of lower hybrid heating were studied by a refined plasma diagnostic method using multielectrode Langmuir probes. The experimental data show evidence of suppression of the correlation and coherency of fluctuations in the plasma density and the electric field strength as well as a reduction in the transverse particle transfer caused by the fluctuational drift flows.

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Authors and Affiliations

  1. St. Petersburg State Technical University, St. Petersburg, 195251, Russia

    E. O. Vekshina, P. R. Goncharov, S. V. Shatalin, V. N. Budnikov, L. A. Esipov, E. R. Its & S. I. Lashkul

  2. Ioffe Physicotechnical Institute, Russian Academy of Sciences, St. Petersburg, 194021, Russia

    E. O. Vekshina, P. R. Goncharov, S. V. Shatalin, V. N. Budnikov, L. A. Esipov, E. R. Its & S. I. Lashkul

Authors
  1. E. O. Vekshina
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  2. P. R. Goncharov
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  3. S. V. Shatalin
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  4. V. N. Budnikov
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  5. L. A. Esipov
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  6. E. R. Its
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  7. S. I. Lashkul
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Translated from Pis’ma v Zhurnal Tekhnichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\) Fiziki, Vol. 26, No. 19, 2000, pp. 52–58.

Original Russian Text Copyright © 2000 by Vekshina, Goncharov, Shatalin, Budnikov, Esipov, Its, Lashkul.

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Vekshina, E.O., Goncharov, P.R., Shatalin, S.V. et al. A change in the characteristics of fluctuations of the boundary plasma parameters in the FT-2 tokamak upon transition to the improved plasma confinement regime. Tech. Phys. Lett. 26, 873–875 (2000). https://doi.org/10.1134/1.1321224

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  • DOI: https://doi.org/10.1134/1.1321224

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