ISSN:
1089-7666
Source:
AIP Digital Archive
Topics:
Physics
Notes:
The set of semicollisional layer equations derived by Fitzpatrick [Phys. Fluids B 1, 2381 (1989)] is used to investigate the effect of trapped particles on the linear stability of long wavelength resistive modes in a large-aspect-ratio tokamak. At O(1) shear, destabilization by trapped particles is found to significantly modify previous cylindrical results for the drift-tearing mode. At low shear, a fairly weak trapped particle-driven interchange (g mode) instability is found, in addition to the usual drift-tearing mode instability, which, in this limit, is virtually unaffected by trapped particles.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.859387
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