Effect of Coulomb collisions on universal mode stability
作者:
C. O. Beasley,
W. I. van Rij,
K. Molvig,
期刊:
Physics of Fluids(00319171)
(AIP Available online 1985)
卷期:
Volume 28,
issue 1
页码: 271-274
ISSN:0031-9171
年代: 1985
DOI:10.1063/1.865196
出版商: AIP
数据来源: AIP
摘要:
The effect of electron–ion Coulomb collisions on the universal mode is studied using a Fokker–Planck collision operator in the kinetic equation for the electron distributionf∥e(x,v∥,t). The expected smoothing of thev∥structure off∥eis found, and the character of the mode is little changed when &ngr;ei→&ohgr;@B|. It is also confirmed that a collisionality on the order of that of present tokamaks is sufficient to provide for destabilization of the mode even in the absence of nonlinear orbit stochastic diffusion.
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