Neoclassical tearing physics in the spherical tokamak MAST

被引:35
|
作者
Buttery, RJ [1 ]
Sauter, O
Akers, R
Gryaznevich, M
Martin, R
Warrick, CD
Wilson, HR
机构
[1] UKAEA EURATOM Fus Assoc, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England
[2] Ecole Polytech Fed Lausanne, Assoc EURATOM Confederat Suisse, Ctr Rech Phys Plasmas, CH-1015 Lausanne, Switzerland
关键词
D O I
10.1103/PhysRevLett.88.125005
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Results from MAST provide a first test of neoclassical tearing mode physics in the spherical tokamak (ST). The mode accounts for the main performance limit in conventional tokamaks. Its behavior in the ST is remarkably well described by existing theoretical models, although it is more readily seeded by sawtooth events in these scenarios. Modeling confirms the significance of stabilizing field-curvature effects. This provides good grounds for optimism that with suitable control of profiles, it may be possible to avoid these modes in the ST.
引用
收藏
页码:1250051 / 1250054
页数:4
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