Dynamical modelling of tearing mode stabilization by RF current drive

G. Giruzzi, M. Zabiégo, T.A. Gianakon, X. Garbet, A. Cardinali, S. Bernabei

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Abstract

The theory of tearing mode stabilization in toroidal plasmas by RF driven currents that are modulated in phase with the island rotation is investigated. A time-scale analysis of the phenomena involved indicates that transient effects, such as finite time response of the driven currents, island rotation during the power pulses and the inductive response of the plasma, are intrinsically important. A dynamical model of such effects is developed, based on a 3-D Fokker-Planck code coupled to both the electric field diffusion equation and the island evolution equation. Extensive applications to both ECCD and LHCD in ITER are presented.
Original languageEnglish
Pages (from-to)107 - 125
Number of pages19
JournalNuclear Fusion
Volume39
Issue number1-4
DOIs
Publication statusPublished - 1999
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Condensed Matter Physics

Cite this

Giruzzi, G., Zabiégo, M., Gianakon, T. A., Garbet, X., Cardinali, A., & Bernabei, S. (1999). Dynamical modelling of tearing mode stabilization by RF current drive. Nuclear Fusion, 39(1-4), 107 - 125. https://doi.org/10.1088/0029-5515/39/1/307