中国物理B ›› 2017, Vol. 26 ›› Issue (11): 115203-115203.doi: 10.1088/1674-1056/26/11/115203

• PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES • 上一篇    下一篇

Toroidal rotation induced by 4.6 GHz lower hybrid current drive on EAST tokamak

Xiang-Hui Yin(尹相辉), Jun Chen(陈俊), Rui-Ji Hu(胡睿佶), Ying-Ying Li(李颖颖), Fu-Di Wang(王福地), Jia Fu(符佳), Bo-Jiang Ding(丁伯江), Mao Wang(王茂), Fu-Kun Liu(刘甫坤), Qing Zang(臧庆), Yue-Jiang Shi(石跃江), Bo Lyu(吕波), Bao-Nian Wan(万宝年), EAST team   

  1. 1. Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China;
    2. School of Nuclear Science and Technology, University of Science and Technology of China, Hefei 230026, China;
    3. Department of Nuclear Engineering, Seoul National University, Seoul 151-742, Korea
  • 收稿日期:2017-02-09 修回日期:2017-07-10 出版日期:2017-11-05 发布日期:2017-11-05
  • 基金资助:

    Project supported by the National Magnetic Confinement Fusion Science Program of China (Grant Nos. 2013GB112004 and 2015GB103002), the National Natural Science Foundation of China (Grant Nos. 11405212 and 11261140328), and the Major Program of Development Foundation of Hefei Center for Physical Science and Technology China (Grant No. 2016FXZY008).

Toroidal rotation induced by 4.6 GHz lower hybrid current drive on EAST tokamak

Xiang-Hui Yin(尹相辉)1,2, Jun Chen(陈俊)1,2, Rui-Ji Hu(胡睿佶)1,2, Ying-Ying Li(李颖颖)1, Fu-Di Wang(王福地)1, Jia Fu(符佳)1, Bo-Jiang Ding(丁伯江)1, Mao Wang(王茂)1, Fu-Kun Liu(刘甫坤)1, Qing Zang(臧庆)1, Yue-Jiang Shi(石跃江)1,3, Bo Lyu(吕波)1, Bao-Nian Wan(万宝年)1, EAST team1   

  1. 1. Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China;
    2. School of Nuclear Science and Technology, University of Science and Technology of China, Hefei 230026, China;
    3. Department of Nuclear Engineering, Seoul National University, Seoul 151-742, Korea
  • Received:2017-02-09 Revised:2017-07-10 Online:2017-11-05 Published:2017-11-05
  • Contact: Bo Lyu E-mail:blu@ipp.ac.cn
  • Supported by:

    Project supported by the National Magnetic Confinement Fusion Science Program of China (Grant Nos. 2013GB112004 and 2015GB103002), the National Natural Science Foundation of China (Grant Nos. 11405212 and 11261140328), and the Major Program of Development Foundation of Hefei Center for Physical Science and Technology China (Grant No. 2016FXZY008).

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摘要：

Using a tangentially viewing x-ray imaging crystal spectrometer, substantial co-current rotation driven by lower hybrid current drive (LHCD) at 4.6 GHz is observed on EAST tokamak. This study presents plasma rotation behaviors with 4.6 GHz LHCD injection. Typically, the 10-20 km/s co-current rotation change and the transport of rotation velocity from edge to core are observed. The relationship between plasma parameters and rotation is also investigated, indicating that rotation decreases with increasing internal inductance (li) and increases with increasing safety factor (q0). Hysteresis between rotation and Te plasma stored energy is observed, suggesting different response times between the electron heating and rotation acceleration by LHCD. A comparison between the rotations driven by 4.6 G LHCD and 2.45 G LHCD on EAST is also presented, in which higher frequency LHCD could induce more rotation changes.

关键词: intrinsic rotation, lower hybrid current drive (LHCD)

Abstract:

Using a tangentially viewing x-ray imaging crystal spectrometer, substantial co-current rotation driven by lower hybrid current drive (LHCD) at 4.6 GHz is observed on EAST tokamak. This study presents plasma rotation behaviors with 4.6 GHz LHCD injection. Typically, the 10-20 km/s co-current rotation change and the transport of rotation velocity from edge to core are observed. The relationship between plasma parameters and rotation is also investigated, indicating that rotation decreases with increasing internal inductance (li) and increases with increasing safety factor (q0). Hysteresis between rotation and Te plasma stored energy is observed, suggesting different response times between the electron heating and rotation acceleration by LHCD. A comparison between the rotations driven by 4.6 G LHCD and 2.45 G LHCD on EAST is also presented, in which higher frequency LHCD could induce more rotation changes.

Key words: intrinsic rotation, lower hybrid current drive (LHCD)

中图分类号:  (Plasma dynamics and flow)

  • 52.30.-q
52.35.Hr (Electromagnetic waves (e.g., electron-cyclotron, Whistler, Bernstein, upper hybrid, lower hybrid))