...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Plasma physics and controlled fusion >Spontaneous L-H transitions under marginal hot cathode biasing in the Tohoku University Heliac
【24h】

Spontaneous L-H transitions under marginal hot cathode biasing in the Tohoku University Heliac

机译：东北大学Heliac在边缘热阴极偏压下自发地发生L-H跃迁

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

A series of hot cathode biasing experiments with marginal conditions for improved mode transition were carried out in the Tohoku University Heliac (TU-Heliac). Spontaneous transitions were observed accompanied by a delay of a few milliseconds. Transition conditions were explored over a wide operation range. The transition points can be identified clearly and easily in the operation range, because the plasma parameters changed slowly until the spontaneous transition. Although operation conditions were spread over a wide range, poloidal Mach numbers for transitions were concentrated in the range of -M-p = 1-2 and normalized driving forces for poloidal rotation agreed well with the local maximum value of ion viscosity predicted by neoclassical theory. The local maximum of ion viscosity against the poloidal Mach number was found to play a key role in the L-H transition. Marginal hot cathode biasing is suitable to determine the threshold conditions for the L-H transition.
机译：在东北大学Heliac（TU-Heliac）实验室进行了一系列带有改进条件转变的边际条件的热阴极偏压实验。观察到自发转变，伴随着几毫秒的延迟。在广泛的操作范围内探索了过渡条件。由于等离子参数变化缓慢直至自发转变，因此可以在操作范围内清楚，轻松地识别出转变点。尽管操作条件分布范围很广，但转变的极谱马赫数集中在-M-p = 1-2的范围内，极谱旋转的归一化驱动力与新古典理论预测的离子黏度的局部最大值非常吻合。发现离子粘度相对于倍性马赫数的局部最大值在L-H跃迁中起关键作用。边际热阴极偏压适合确定L-H跃迁的阈值条件。

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