Tokamak plasmas are known to be subject to a variety of plasma instabilities. Tearing modes, being one of the strongest instabilities, are seen on most tokamaks, including the COMPASS tokamak (R=0.56 m, a<0.23m, BT=1.15 T, Te ~ 1keV, pulse duration about 0.3 s) in Prague. A good understanding of these magneto-hydro-dynamic phenomena, and their connection to magnetic island creation, is essential for the further development of tokamaks and fusion power plants.
This research work gives an introduction to tokamaks and discusses the necessary theories in order to understand the magnetic island's behaviour; also a brief overview of the present magnetic and fast spectroscopic diagnostics suitable for observations of the island is given.
Ultimately, the text focuses on the examination of the observed tearing modes on the COMPASS tokamak using available diagnostic instruments and different mathematical techniques like Fourier transform and cross correlation. Finally, relations between the mode behaviour parameters are indicated
If you want to cite this thesis in your own thesis, paper, or report, use this format (APA):
CORNELIS, D. (2012). Features of tearing modes and magnetic islands on the compass tokamak.
Unpublished thesis, Xios, TIW.