Dynamics of the disruption halo current toroidal asymmetry in NSTX
Dynamics of the disruption halo current toroidal asymmetry in NSTX
复制标题
NSTX 中扰乱晕电流环形不对称的动力学
DOI：
10.1088/0029-5515/53/2/023005
复制
发表时间：
2013
期刊：
影响因子：
3.3
通讯作者：
S. Gerhardt
中科院分区：
文献类型：
--
作者：
S. Gerhardt
本文描述了国家球形环实验（Ono et al 2000 Nucl.Fusion 40 557）的下偏滤器中的分裂晕流非轴对称动力学。晕圈电流通常在它们进入偏滤器底板的地方具有强烈的不对称结构，并且已经观察到这种不对称性在晕圈电流脉冲的持续时间内完成多达八个环形旋转。然而，在脉冲期间，旋转速度和不对称的环形范围可以显著变化。旋转速度、晕圈电流脉冲持续时间和总转数在具有大晕圈电流的情况下趋于较小。观察到的晕圈电流图案成为环形对称的晕圈电流脉冲的结束。有人提出，这种对称化是由于在垂直位移事件的最后阶段的大部分或所有的封闭场线几何形状的损失。
This paper describes the dynamics of disruption halo current non-axisymmetries in the lower divertor of the National Spherical Torus Experiment (Ono et al 2000 Nucl. Fusion 40 557). The halo currents typically have a strongly asymmetric structure where they enter the divertor floor, and this asymmetry has been observed to complete up to eight toroidal revolutions over the duration of the halo current pulse. However, the rotation speed and toroidal extent of the asymmetry can vary significantly during the pulse. The rotation speed, halo current pulse duration, and total number of revolutions tend to be smaller in cases with large halo currents. The halo current pattern is observed to become toroidally symmetric at the end of the halo current pulse. It is proposed that this symmeterization is due to the loss of most or all of the closed field line geometry in the final phase of the vertical displacement event.
影响因子：
3.3
作者：
R. Yoshino;S. Tokuda;Y. Kawano
通讯作者：
R. Yoshino;S. Tokuda;Y. Kawano
影响因子：
3.3
作者：
Shimada, M.;Campbell, D. J.;Sipps, A. C. C.
通讯作者：
Sipps, A. C. C.