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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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