Article

Czechoslovak Journal of Physics

, Volume 51, Issue 10, pp 1011-1019

First Results of Biasing Experiments on the T-10 Tokamak

  • G.S. KirnevAffiliated withNuclear Fusion Institute, RRC "Kurchatov Institute"
  • , S.A. GrashinAffiliated withNuclear Fusion Institute, RRC "Kurchatov Institute"
  • , L.N. KhimchenkoAffiliated withNuclear Fusion Institute, RRC "Kurchatov Institute"
  • , N.N. TimchenkoAffiliated withNuclear Fusion Institute, RRC "Kurchatov Institute"
  • , G. Van OostAffiliated withDepartment of Applied Physics, Ghent University

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Abstract

The first results of the electrode biasing experiments performed on the T-10 tokamak are presented. Positive voltage applied to an electrode inserted inside the tokamak limiter results in the H-mode transition characterised by a decrease of Dα emission intensity, a rise of line-average plasma density and an increase in energy lifetime. Growth of core electron and ion temperatures during the electrode biasing implies the formation of the thermal barrier in addition to the particle transport barrier.