Suppression of large edge-localized modes in high-confinement DIII-D plasmas with a stochastic magnetic boundary.
Suppression of large edge-localized modes in high-confinement DIII-D plasmas with a stochastic magnetic boundary.
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DOI：
10.1103/physrevlett.92.235003
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发表时间：
2004-06
影响因子：
8.6
通讯作者：
T. Evans;R. Moyer;P. Thomas;J. Watkins;T. Osborne;J. Boedo;E. Doyle;M. Fenstermacher;K. Finken-K
中科院分区：
文献类型：
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作者：
T. Evans;R. Moyer;P. Thomas;J. Watkins;T. Osborne;J. Boedo;E. Doyle;M. Fenstermacher;K. Finken-K
随机磁边界，所施加的边缘共振磁扰动产生的，是用来抑制大多数大的边缘局域模（ELMs）在高约束（H-模式）等离子体。由此产生的H模式显示快速，小的振荡与突发字符调制的相干130 Hz的包络。的H模式的运输障碍和核心的限制是不受随机边界，尽管在环形旋转下降了三倍。这些结果表明，随机边界是兼容的H模式，并可能是有吸引力的ELM控制在下一步聚变托卡马克。
A stochastic magnetic boundary, produced by an applied edge resonant magnetic perturbation, is used to suppress most large edge-localized modes (ELMs) in high confinement (H-mode) plasmas. The resulting H mode displays rapid, small oscillations with a bursty character modulated by a coherent 130 Hz envelope. The H mode transport barrier and core confinement are unaffected by the stochastic boundary, despite a threefold drop in the toroidal rotation. These results demonstrate that stochastic boundaries are compatible with H modes and may be attractive for ELM control in next-step fusion tokamaks.