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Title: Alpha particle effects on the internal kink modes

The {alpha}-particle effects on the internal kink mode stability are studied. Finite Grad-Shafranov Shift, plasma {beta}, and plasma shape can significantly enhance the trapped particle drift reversal domain in pitch angle space and reduce average magnetic drift frequency. The drift reversal effect on the ideal kink mode is small, but the {beta}{sub {alpha}} threshold for the fishbone mode can be much lower than previously predicted. In addition, the ion diamagnetic drift has a stronger destabilizing effect.
Authors:
;
Publication Date:
OSTI Identifier:
10176063
Report Number(s):
PPPL--2979
ON: DE94017335; TRN: 94:016693
DOE Contract Number:
AC02-76CH03073
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: Aug 1994
Research Org:
Princeton Univ., NJ (United States). Plasma Physics Lab.
Sponsoring Org:
USDOE, Washington, DC (United States)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; TOKAMAK DEVICES; KINK INSTABILITY; ALPHA PARTICLES; DISTRIBUTION FUNCTIONS; MHD EQUILIBRIUM; DISPERSION RELATIONS; FISHBONE INSTABILITY 700340; PLASMA WAVES, OSCILLATIONS, AND INSTABILITIES