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| 引用本文： | 姚龙宝,胡双辉,王一如,陈淑平.?????п????????μ??????????????[J].核聚变与等离子体物理,2012,32(1):8-14. |
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| 作者姓名： | 姚龙宝 胡双辉 王一如 陈淑平 |
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| 作者单位： | (???????????? ???? 550025) |
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| 基金项目： | 国家自然科学基金资助项目(10975039) |
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| 摘 要： | 研究了在JT-60U运行参数下的α诱发的环向阿尔芬本征模(αTAE)，由其实验数据得到了s和α的径向剖面(s=rdq/qdr，α=-q2Rdβ/dr )。发现存在α极大值，尤其是在反剪切等离子体和高性能位形下。这证实了托卡马克中存在αTAE的全域捕获条件。在现行托卡马克中发现了多支αTAE。此外，还考察了在中性束注入实验过程中αTAE随时间的变化特性。
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| 关 键 词： | 阿尔芬波 MHD不稳定性 托卡马克 |
| 收稿时间： | 2011-04-12 |
| 修稿时间： | 2011-11-18 |
Discrete Alfvén eigenmodes in present tokamaks |
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| YAO Long-bao,HU Shuang-hui,WANG Yi-ru,CHEN Shu-ping.Discrete Alfvén eigenmodes in present tokamaks[J].Nuclear Fusion and Plasma Physics,2012,32(1):8-14. |
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| Authors: | YAO Long-bao HU Shuang-hui WANG Yi-ru CHEN Shu-ping |
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| Institution: | (Department of Physics, College of science, Guizhou University, Guiyang 550025) |
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| Abstract: | The α-induced toroidal Alfvén eigenmode (αTAE) is investigated upon the operation parameters of JT-60U. The radial s and α profiles (s=rdq/qdr, α=–q2Rdβ/dr) are obtained via the data from experiments. There exists the α maximum, especially in the reversed shear plasmas and high performance configurations, which supports the globally trapped condition of the αTAE in tokamaks. Mutiple branches of αTAEs are found in present tokamaks. Furthermore, the time-variation of αTAE during neutral beams injection presented. |
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| Keywords: | Alfvé n waves MHD instability Tokamak |
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