Biletskyi O. H-mode-like confinement formation in the RF discharge plasma in the Uragan-3M torsatron

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0414U000333

Thesis Registration Form

0414U000333.pdf

Applicant for

Specialization

  • 01.04.08 - Фізика плазми

10-01-2014

Specialized Academic Board

Д 64.051.12

V.N. Karazin Kharkiv National University

Essay

The dissertation is devoted to studying plasma creation, confinement and heating in the Uragan-3M torsatron. At the radiofrequency heating power high enough, the transition to the H-like confinement mode occurs. The H-like mode transition trigger is a short-time enhanced ion loss with energies greater than or about 500 eV. Edge turbulent transport is reduced after the transition. This reduction correlates with a slowing-down of the plasma density decay and a radial electric field shear enhancement at the plasma boundary. A weaker shear already formed before the transition and enhanced after it.

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