H-mode threshold and dynamics in the National Spherical Torus Experiment-猫眼课题宝

DOI：

10.1063/1.1567288

发表时间：

2003-04

期刊：

Physics of Plasmas

影响因子：

2.2

通讯作者：

中科院分区：

物理与天体物理3区

文献类型：

作者：

C. Bush;M. Bell;R. Bell;J. Boedo;E. Fredrickson;S. Kaye;S. Kubota;B. LeBlanc;R. Maingi;R. Maqueda;S. Sabbagh;V. Soukhanovskii;D. Stutman;D. Swain;J. Wilgen;S. Zweben;W. Davis;D. Gates;D. Johnson;R. Kaita;H. Kugel;K. Lee;D. Mastrovito;S. Medley;J. Menard;D. Mueller;M. Ono;F. Paoletti;H. Park;S. Paul;Y-K.M. Peng;R. Raman;P. Roney;A. Roquemore;C. Skinner;E. Synakowski;G. Taylor;Nstx Team

边缘参数在高约束模式（H模式）访问中起着关键作用，这是当今环形约束实验和下一代器件设计中放电优化的关键组成部分。由于球形环（ST）的边缘磁拓扑结构不同于传统的纵横比托卡马克，ST中的H模与托卡马克相比表现出重要的差异。国家球面环实验（NSTX）[C. Neumeyer等人，融合工程设计师。54，275（2001）]边缘等离子体对加热功率，包括低约束模式（L-模式）到H-模式（L-H）的过渡要求和边缘局域模式（ELM）的出现，并对偏滤器配置进行了量化。良好的L-模式和H-模式之间的比较显示出更大的差异，在离子通道比电子通道。NSTX中H模跃迁的阈值功率通常高于最近的国际托卡马克实验堆（ITER）[ITER物理基础版]的预测。

Edge parameters play a critical role in high confinement mode (H-mode) access, which is a key component of discharge optimization in present day toroidal confinement experiments and the design of next generation devices. Because the edge magnetic topology of a spherical torus (ST) differs from a conventional aspect ratio tokamak, H-modes in STs exhibit important differences compared with tokamaks. The dependence of the National Spherical Torus Experiment (NSTX) [C. Neumeyer et al., Fusion Eng. Des. 54, 275 (2001)] edge plasma on heating power, including the low confinement mode (L-mode) to H-mode (L-H) transition requirements and the occurrence of edge-localized modes (ELMs), and on divertor configuration is quantified. Comparisons between good L-modes and H-modes show greater differences in the ion channel than the electron channel. The threshold power for the H-mode transition in NSTX is generally above the predictions of a recent International Tokamak Experimental Reactor (ITER) [ITER Physics Basis Edi...

H-mode threshold and dynamics in the National Spherical Torus Experiment

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