...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Nuclear fusion >Stabilization and prevention of the 2/1 neoclassical tearing mode for improved performance in DIII-D
【24h】

Stabilization and prevention of the 2/1 neoclassical tearing mode for improved performance in DIII-D

机译：稳定和防止2/1新古典撕裂模式，以提高DIII-D的性能

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The m = 2 = 1 neoclassical tearing mode (NTM) has been observed to strongly degrade confinement and frequently lead to a disruption in high β discharges in DIII-D if allowed to grow to a large size. Stabilization of grown NTMs by the application of a highly localized electron cyclotron current drive (ECCD) at the island location has led to operation at an increased plasma pressure, up to the no-wall kink limit. After the NTM is stabilized by the ECCD, the correct location for the current drive is maintained using information from real-time equilibrium reconstructions which include measurements from the motional Stark effect diagnostic. This same process is used alternatively to prevent the mode from ever growing, leading to performance at the pressure limit in high performance hybrid discharges with β above 4%. Modelling using the modified Rutherford equation shows that the required power is in close agreement with the experimental threshold for the prevention of the 2/1 NTM.
机译：m = 2 / n = 1新古典撕裂模式（NTM）已被观察到，如果允许增大到较大尺寸，会严重限制封闭，并经常导致DIII-D中高β放电的中断。通过在岛位置使用高度局部化的电子回旋电流驱动器（ECCD）来稳定生长的NTM，已导致在增加的等离子体压力下进行操作，直至达到无壁弯极限。在通过ECCD使NTM稳定之后，使用来自实时平衡重建的信息（包括来自运动斯塔克效应诊断的测量值）来保持当前驱动器的正确位置。可替代地，使用相同的过程来防止该模式不断增长，从而导致在β大于4％的高性能混合放电中达到压力极限时的性能。使用修改后的卢瑟福方程式进行的建模表明，所需的功率与防止2/1 NTM的实验阈值非常一致。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号