Spatial and temporal structure of edge-localized modes

被引:145
|
作者
Kirk, A [1 ]
Wilson, HR
Counsell, GF
Akers, R
Arends, E
Cowley, SC
Dowling, J
Lloyd, B
Price, M
Walsh, M
机构
[1] EURATOM, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England
[2] EURATOM, FOM, Inst Plasma Phys Rijnhuizen, NL-3439 MN Nieuwegein, Netherlands
[3] Univ London Imperial Coll Sci Technol & Med, London SW7 2BZ, England
[4] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA
[5] Walsh Sci Ltd, Culham Sci Ctr, Abingdon OX14 3EB, Oxon, England
基金
欧盟地平线“2020”; 英国工程与自然科学研究理事会;
关键词
D O I
10.1103/PhysRevLett.92.245002
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
This Letter provides information on the spatial and temporal structure of periodic eruptions observed in magnetically confined laboratory fusion plasmas, called edge-localized modes (ELMs), and highlights similarities with solar eruptions. Taken together, the observations presented in this Letter provide strong evidence for ELMs being associated with a filamentlike structure. These filaments are extended along a field line, are generated on a 100 mus time scale, erupt from the outboard side, and connect back into the plasma. Such structures are predicted by a theoretical model based on the "ballooning" instability, developed for both solar and tokamak applications.
引用
收藏
页码:245002 / 1
页数:4
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