Neoclassical tearing mode stabilization by electron cyclotron current drive for HL-2M tokamak |
| |
| Affiliation: | 1.Department of Earth and Space Sciences, Southern University of Science and Technology, Shenzhen 518000, China;2.University of California, Irvine, California 92697, USA;3.Southwestern Institute of Physics, Chengdu 610041, China;4.Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China |
| |
| Abstract: | Investigation of neoclassical tearing mode and its suppression by electron cyclotron current drive(ECCD) has been carried out in HL-2 M tokamak. The current driving capability of the electron cyclotron wave is evaluated. It is found that the deposition location can be effectively controlled by changing the poloidal angle. The validation of electron cyclotron wave heating and current driving has been demonstrated for the upper launcher port. We show that 3.0 MW and2.5 MW modulated ECCD can completely stabilize(2,1) and(3,2) NTMs, respectively. The non-modulated ECCD, radial misalignment as well as current profile broadening have deleterious effect on the NTM stabilization. The time required for suppression of(3,2) mode is shorter than that required for the suppression of(2,1) mode. Moreover, the time needed for complete stabilization at different initial island width has been quantitatively presented and analyzed. |
| |
| Keywords: | neoclassical tearing mode magnetic island electron cyclotron current drive numerical modelling |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《中国物理 B》浏览原始摘要信息 |
|
点击此处可从《中国物理 B》下载免费的PDF全文 |
|
