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Destabilization of Alfve´n‐resonant modes by resistivity and diamagnetic drifts

 

作者: A. Y. Aydemir,   R. D. Hazeltine,   J. D. Meiss,   M. Kotschenreuther,  

 

期刊: Physics of Fluids(00319171)  （AIP Available online 1987）
卷期: Volume 30, issue 1  

页码: 4-6

 

ISSN:0031-9171

 

年代: 1987

 

DOI:10.1063/1.866058

 

出版商: AIP

 

数据来源: AIP

 

摘要:

The existence of unstable resistive drift‐Alfve´n modes is shown in a cylindrical geometry. The modes, driven by nonuniformities in the diamagnetic drift frequency, are unstable even when the associated purely resistive mode is stable. The growth rate has a weak, &eegr;1/4, dependence on resistivity. Because of their large growth rates, they may play an important role in tokamak confinement.

 

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