Electron temperature gradient driven instabilities in helical reversed-field pinch plasmas

被引：1
|
作者：
Predebon, I [1 ]
Xanthopoulos, P. [2 ]
Gobbin, M. [1 ]
机构：
[1] Consorzio RFX, Corso Stati Uniti 4, I-35127 Padua, Italy
[2] Max Planck Inst Plasma Phys, Wendelsteinstr 1, D-17491 Greifswald, Germany
来源：
PLASMA PHYSICS AND CONTROLLED FUSION | 2019年 / 61卷 / 05期
基金：
欧盟地平线“2020”;
关键词：
plasma instabilities; gyrokinetic; helical equilibria;
D O I：
10.1088/1361-6587/ab0d60
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
We describe the occurrence of electron temperature gradient driven micro-instabilities in the helical states of RFX-mod reversed-field pinch plasmas. These plasmas are usually characterized by the presence of large, radially localized electron temperature gradients. Using realistic geometry and profiles, micro-tearing modes and electron temperature gradient modes turn out to regularly co-exist in the region of the temperature barrier. In the paper, we discuss the main features of such instabilities, especially focusing on the distinctive aspects of the helical geometry with respect to the toroidal symmetry.
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页数：8
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