Excitation of internal kink mode by barely trapped suprathermal electrons
Excitation of internal kink mode by barely trapped suprathermal electrons
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DOI：
10.1063/1.2044467
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发表时间：
2005-09
影响因子：
2.2
通讯作者：
Youwen Sun;B. Wan;Shaojie Wang;Deng Zhou;Liqun Hu;B. Shen
中科院分区：
文献类型：
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作者：
Youwen Sun;B. Wan;Shaojie Wang;Deng Zhou;Liqun Hu;B. Shen
几乎没有捕获的超热电子可以不稳定的内部扭结模式时，它们的密度梯度是积极的在合理的表面和超热电子的β值超过一个阈值。本文在两种不同的超热电子能量分布模型的假设下，求出了勉强俘获的超热电子的阈值β值、内扭结模的真实的频率和增长率。计算结果与最近在DIII-D托卡马克上的实验观测符合得很好[K. L. Wong，M. S. Chu，T. C.吕斯等人，物理学评论快报85，996（2000）]。
The barely trapped suprathermal electrons can destabilize the internal kink mode when their density gradient is positive within the rational surface and the beta value of the suprathermal electrons exceeds a threshold value. With the assumption of two different models of energy distribution of the suprathermal electrons, the threshold beta value of the barely trapped suprathermal electrons, the real frequency, and the growth rate of the internal kink mode are found in this paper. The results are in reasonable agreement with the recent experimental observations on DIII-D tokamak [K. L. Wong, M. S. Chu, T. C. Luce et al., Phys. Rev. Lett. 85, 996 (2000)].