Modelling of macroscopic magnetic islands in tokamaks

The article presents experimental and theoretical investigations on the dynamics of saw-teeth and neoclassical tearing modes in tokamak plasmas. The main findings of these investigations are: (1) The experimental validation, on the basis of FTU and TCV data, of a model for the prediction of the sawtooth period and amplitude; (2) the importance of diamagnetic effects in determining the threshold for sawtooth crashes and the rotation of non-linear tearing modes; (3) a clarification of collisionless reconnection processes, in particular the role of phase mixing in association with magnetic island growth and saturation in dissipationless regimes. The interplay between ECRH and macroscopic island dynamics is also discussed.


Published in:
Nuclear Fusion, 41, 9, 1207-1218
Year:
2001
ISSN:
0029-5515
ISBN:
0029-5515
Laboratories:
SPC
CRPP




 Record created 2008-04-16, last modified 2018-01-28


Rate this document:

Rate this document:
1
2
3
 
(Not yet reviewed)