ON LOW-FREQUENCY ALFVEN INSTABILITIES IN STELLARATORS

被引：0
|
作者：
Kolesnichenko, Ya. I. [1 ]
Lutsenko, V. V. [1 ]
Weller, A. [2 ]
Werner, A. [2 ]
Yakovenko, Yu. V. [1 ]
Geiger, J. [2 ]
机构：
[1] Inst Nucl Res, 47 Nauky Prosp, UA-03680 Kiev, Ukraine
[2] Max Planck Inst Plasma Phys, IPP EURATOM Assoc, D-17491 Greifswald, Germany
来源：
UKRAINIAN JOURNAL OF PHYSICS | 2008年 / 53卷 / 05期
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中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A theory of low frequency Alfven eigenmodes [the global Alfven eigenmodes (GAE) and non-conventional global Alfv'en eigenmodes (NGAE)] in stellarators is developed taking into account the plasma compressibility. It is found that the conditions of existence of GAE/NGAE modes in stellarators differ from those in tokamaks and that the geodesic acoustic mode (GAM) may not exist in stellarators. Specific calculations modeling low-frequency Alfven instabilities in a Wendelstein 7-AS are carried out.
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页码：477 / 481
页数：5
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