| Repetitive ＇Snakes＇ and Their Damping Effect on Core Toroidal Rotation in EAST Plasmas with Multiple H-L-H Transitions |
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| 引用本文： | 除立清,胡立群,陈开云,李长征,李二众,赵金龙,盛秀丽,张继宗,毛松涛.Repetitive ＇Snakes＇ and Their Damping Effect on Core Toroidal Rotation in EAST Plasmas with Multiple H-L-H Transitions[J].中国物理快报,2014(10):78-81. |
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| 作者姓名： | 除立清 胡立群 陈开云 李长征 李二众 赵金龙 盛秀丽 张继宗 毛松涛 |
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| 作者单位： | Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031 |
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| 基金项目： | Supported by the JSPS-NRF-NSFCA3 Foresight Program in the Field of Plasma Physics （NSFC） under Grant No 11261140328, the National Natural Science Foundation of China under Grant Nos 11305212 and 11175208, and the National Magnetic Confinement Fusion Science Program of China under Grant No 2012GB103003. |
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| 摘 要： | Repetitive impurity snake modes are observed after H-L mode transitions （high to low confinement modes） in EAST plasmas exhibiting multiple H-L-H transitions. Such snake modes are observed to lower the core plasma toroidal rotation. A critical impurity strength factor associated with snake-mode formation is estimated to be as high as αz,c = nz,cZ^2/ne - 0.75. These observations have implications for ITER H-mode sustainability when the heating power is only slightly above the H-mode power threshold.
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| 关 键 词： | 等离子体 EAST 旋转阻尼 环向 蛇 加热功率 约束模式 模式转换 |
Repetitive ＇Snakes＇ and Their Damping Effect on Core Toroidal Rotation in EAST Plasmas with Multiple H-L-H Transitions |
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| XU Li-Qing,HU Li-Qun,CHEN Kai-Yun,LI Chang-Zheng,LI Er-Zhong,ZHAO Jin-Long,SHENG Xiu-Li,ZHANG Ji-Zong,MAO Song-Tao.Repetitive ＇Snakes＇ and Their Damping Effect on Core Toroidal Rotation in EAST Plasmas with Multiple H-L-H Transitions[J].Chinese Physics Letters,2014(10):78-81. |
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| Authors: | XU Li-Qing HU Li-Qun CHEN Kai-Yun LI Chang-Zheng LI Er-Zhong ZHAO Jin-Long SHENG Xiu-Li ZHANG Ji-Zong MAO Song-Tao |
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| Institution: | ( Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031) |
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