Fishbone Oscillations in the Experimental Advanced Superconductivity Tokamak
Fishbone Oscillations in the Experimental Advanced Superconductivity Tokamak
复制标题
实验先进超导托卡马克中的鱼骨振荡
DOI：
10.3938/jkps.72.669
复制
发表时间：
2018-03
影响因子：
0.6
通讯作者：
Duan Yan Min
中科院分区：
文献类型：
--
作者：
Xu Li Qing;Hu Li Qun;Yuan Yi;Li Ying Ying;Zhong Guo Qiang;Liu Hai Qing;Chen Kai Yun;Shi Tong Hui;Duan Yan Min
在实验先进超导托卡马克（EAST）中观察到中性束注入等离子体中的鱼骨振荡。这种m = 1/n = 1 （m， n分别为极向、环向模数）的典型内扭模在极向截面沿离子抗磁方向运动，其旋转速度接近离子抗磁漂移频率。高热等离子体β和大量高能离子是模式发展的必要条件。鱼骨振荡可以排出核心中的重杂质，这有利于维持高性能的等离子体。鱼骨振荡的起始频率为离子抗磁漂移频率，生长初期频率的啁啾下降是离子抗磁漂移频率下降的结果。激发能被认为是由热等离子体压力梯度引起的；然而，鱼骨振荡的发展与高能离子有关。
A fishbone oscillation was observed in the neutral beam injection plasma at Experimental Advanced Superconductivity Tokamak (EAST). This m = 1/n = 1 (m, n: poloidal, toroidal mode numbers, respectively) typical internal kink mode travels in the ion-diamagnetism direction in the poloidal section with a rotation speed close to the ion diamagnetic drift frequency. A high thermal plasma beta and high amounts of energetic ions are necessary for the mode to develop. Fishbone oscillations can expel heavy impurities in the core, which favors sustaining a high-performance plasma. The born frequency of the fishbone oscillation is the ion diamagnetic drift frequency and the chirping down of the frequency during the initial growth phase is the result of a drop in iondiamagnetic drift frequency. The excitation energy is thought to be due to the thermal plasma pressure gradient; however, the development of a fishbone oscillation is related to energetic ions.
登录
查看更多内容
影响因子：
3.3
作者：
D. Vezinet;V. Igochine;M. Weiland;Q. Yu;A. Gude;D. Meshcheriakov;M. Sertoli
通讯作者：
D. Vezinet;V. Igochine;M. Weiland;Q. Yu;A. Gude;D. Meshcheriakov;M. Sertoli
DOI：
10.1063/1.4889777
发表时间：
2014-07
期刊：
The Review of scientific instruments
影响因子：
--
作者：
H. Liu;Y. Jie;W. Ding;D. Brower;Z. Zou;W. Li;Zhongli Wang;J. Qian;Yanji Yang;L. Zeng
通讯作者：
H. Liu;Y. Jie;W. Ding;D. Brower;Z. Zou;W. Li;Zhongli Wang;J. Qian;Yanji Yang;L. Zeng
影响因子：
2.2
作者：
Liqing Xu;Liqun Hu;Kaiyun Chen;E. Li;Fudi Wang;Ming Xu;Y. Duan;T. Shi;J. Zhang;R. Zhou-R.-Zh
通讯作者：
Liqing Xu;Liqun Hu;Kaiyun Chen;E. Li;Fudi Wang;Ming Xu;Y. Duan;T. Shi;J. Zhang;R. Zhou-R.-Zh
影响因子：
2.2
作者：
Bin Wu;B. Hao;R. White;Jinfang Wang;Q. Zang;Xiaofeng Han;Chundong Hu
通讯作者：
Bin Wu;B. Hao;R. White;Jinfang Wang;Q. Zang;Xiaofeng Han;Chundong Hu
影响因子：
2.2
作者：
L. Xu;J. Zhang;Kaiyun Chen;Liqun Hu;E. Li;Shiyao Lin;T. Shi;Y. Duan;Yubao Zhu
通讯作者：
L. Xu;J. Zhang;Kaiyun Chen;Liqun Hu;E. Li;Shiyao Lin;T. Shi;Y. Duan;Yubao Zhu