Dynamics of energetic particle driven modes and MHD modes in wall-stabilized high-β plasmas on JT-60U and DIII-D

被引：7

作者：

Matsunaga, G. ^{[1
]}

Okabayashi, M. ^{[2
]}

Aiba, N. ^{[1
]}

Boedo, J. A. ^{[3
]}

Ferron, J. R. ^{[4
]}

Hanson, J. M. ^{[5
]}

Hao, G. Z. ^{[6
]}

Heidbrink, W. W. ^{[7
]}

Holcomb, C. T. ^{[8
]}

In, Y. ^{[9
]}

Jackson, G. L. ^{[4
]}

Liu, Y. Q. ^{[10
]}

Luce, T. C. ^{[4
]}

McKee, G. R. ^{[11
]}

Osborne, T. H. ^{[4
]}

Pace, D. C. ^{[4
]}

Shinohara, K. ^{[1
]}

Snyder, P. B. ^{[4
]}

Solomon, W. M. ^{[2
]}

Strait, E. J. ^{[4
]}

Turnbull, A. D. ^{[4
]}

Van Zeeland, M. A. ^{[4
]}

Watkins, J. G. ^{[12
]}

Zeng, L. ^{[13
,14
]}

机构：

[1] Japan Atom Energy Agcy, Naka, Ibaraki, Japan

[2] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA

[3] Univ Calif San Diego, Dept Aerosp & Mech Engn, San Diego, CA 92103 USA

[4] Gen Atom Co, San Diego, CA USA

[5] Columbia Univ, Dept Appl Phys & Appl Math, New York, NY USA

[6] Southwestern Inst Phys, Chengdu, Peoples R China

[7] Univ Calif Irvine, Dept Phys & Astron, Irvine, CA USA

[8] Lawrence Livermore Natl Lab, Livermore, CA USA

[9] FAR TECH Inc, San Diego, CA USA

[10] Euratom CCFE Fus Assoc, Culham Sci Ctr, Abingdon, Oxon, England

[11] Univ Wisconsin, Dept Engn Phys, Madison, WI USA

[12] Sandia Natl Labs, Albuquerque, NM 87185 USA

[13] Univ Calif Los Angeles, Dept Elect Engn, Los Angeles, CA 90024 USA

[14] Univ Calif Los Angeles, Plasma Sci & Technol Inst, Los Angeles, CA USA

来源：

NUCLEAR FUSION | 2013年 / 53卷 / 12期

关键词：

D O I：

10.1088/0029-5515/53/12/123022

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：

In the wall-stabilized high-beta plasmas in JT-60U and DIII-D, interactions between energetic particle (EP) driven modes (EPdMs) and edge localized modes (ELMs) have been observed. The interaction between the EPdM and ELM are reproducibly observed. Many EP diagnostics indicate a strong correlation between the distorted waveform of the EPdM and the EP transport to the edge. The waveform distortion is composed of higher harmonics (n >= 2) and looks like a density snake near the plasma edge. According to statistical analyses, ELM triggering by the EPdMs requires a finite level of waveform distortion and pedestal recovery. ELM pacing by the EPdMs occurs when the repetition frequency of the EPdMs is higher than the natural ELM frequency. EPs transported by EPdMs are thought to contribute to change the edge stability.

引用

页数：13

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