Global Marginal Stability of Taes in the Presence of Fast Ions

The global stability of toroidicity induced Alfven eigenmodes (TAEs) in the presence of fast ions in realistic tokamak fusion-grade plasmas is analysed with a global, perturbative approach. Volume averaged fast particle betas for marginal stability are obtained and analysed for a wide range of plasma parameters such as the fast ion radial density profile width, the ratio of birth velocity to the Alfven velocity on axis and the bulk plasma bets. There is evidence of different stability behaviour of two types of TAEs ('internal' or 'external').


Published in:
Nuclear Fusion, 35, 10, 1173-1190
Year:
1995
ISSN:
0029-5515
Laboratories:
SPC
CRPP




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


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