Influence of Energetic Ions on Tearing Modes

被引：65

作者：

Cai, Huishan ^{[1
]}

Wang, Shaojie ^{[1
]}

Xu, Yinfeng ^{[1
]}

Cao, Jintao ^{[1
]}

Li, Ding ^{[1
]}

机构：

[1] Univ Sci & Technol China, Dept Modern Phys, Sch Phys Sci, Hefei 230026, Peoples R China

来源：

PHYSICAL REVIEW LETTERS | 2011年 / 106卷 / 07期

基金：

美国国家科学基金会;

关键词：

SAWTOOTH OSCILLATIONS; STABILIZATION; STABILITY; LIMITS; JET;

D O I：

10.1103/PhysRevLett.106.075002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In contrast with the stability effects of trapped energetic ions on tearing modes, the effects of circulating energetic ions (CEI) on tearing modes depend on the toroidal circulating direction, and are closely related to the momentum of energetic ions. CEI provide an additional source or sink of momentum to affect tearing modes. For co-CEI, tearing modes can be stabilized if the momentum of energetic ions is large enough. On the other hand, the growth of tearing modes can be enhanced by counter-CEI. Further, a possibility to suppress the island growth of neoclassical tearing modes by co-CEI is pointed out.

引用

页数：4

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