Understanding the spatial structure of RF-induced SOL modifications
Understanding the spatial structure of RF-induced SOL modifications
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DOI：
10.1088/0741-3335/49/12b/s02
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发表时间：
2007-12
影响因子：
2.2
通讯作者：
L. Colas;A. Ekedahl;M. Goniche;J. Gunn;B. Nold;Y. Corre;V. Bobkov;R. Dux;F. Braun;J. Noterdaeme;M. Mayoral;K. Kirov;J. Mailloux;S. Heuraux;E. Faudot;J. Ongena
中科院分区：
文献类型：
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作者：
L. Colas;A. Ekedahl;M. Goniche;J. Gunn;B. Nold;Y. Corre;V. Bobkov;R. Dux;F. Braun;J. Noterdaeme;M. Mayoral;K. Kirov;J. Mailloux;S. Heuraux;E. Faudot;J. Ongena
本文综述了最近在ASDEX-Upgrade （AUG）、JET和Tore Supra （TS）中射频（RF）诱导刮脱层（SOL）修饰的实验表征。几何方面的强调：复杂的SOL模式是观察到几个指标可视化在一个或两个维度横向磁场线。结果归因于非均匀rf诱导的SOL偏压在功率离子回旋加速器频率范围内的天线和相关的E × B0密度对流（D'Ippolito et al . 1993）。流体B 5 3603)。在一个简单的射频鞘模型(珀金斯1989核。融合29 583)，对流细胞在TS上的形状可以解释为射频鞘产生的平行射频电流。为未来的机器吸取了一些教训。
This paper summarizes recent experimental characterization of radio frequency (RF)-induced scrape-off layer (SOL) modifications in ASDEX-Upgrade (AUG), JET and Tore Supra (TS). Geometrical aspects are emphasized: complex SOL patterns are observed by several indicators visualized in one or two dimensions transverse to the magnetic field lines. Results are ascribed to inhomogeneous RF-induced SOL biasing around powered ion cyclotron range of frequencies antennas and associated E × B0 density convection (D'Ippolito et al 1993 Phys. Fluids B 5 3603). Within a simple RF sheath model (Perkins 1989 Nucl. Fusion 29 583), the shape of convective cells on TS can be interpreted in terms of RF-sheath generation by parallel RF currents. Some lessons are drawn for future machines.