Characteristics of transport barrier generation from gyrokinetic plasma simulation in a tokamak

T. Ekholm, S. Janhunen, Jukka Heikkinen, S. Henriksson, T.P. Kiviniemi

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Abstract

An advanced full f gyrokinetic three-dimensional (3-D) plasma simulation code has been developed, thus making it possible to treat steep plasma gradients, wide particle orbit effects, and rapid dynamic changes in long simulations. The study of a small tokamak plasma heated by lower hybrid waves shows a generation of internal transport barrier which is detected as a simultaneous collapse of heat and particle diffusion coefficients as well as large scale structures in fluctuations inside the barrier.
Original languageEnglish
Pages (from-to)442-443
JournalIEEE Transactions on Plasma Science
Volume33
Issue number2
DOIs
Publication statusPublished - 2005
MoE publication typeA1 Journal article-refereed

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Keywords

  • fusion energy
  • fusion reactors
  • plasma
  • Tokamak
  • magnetic confinement
  • scientific visualisation
  • transport
  • turbulence

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