| Autor: |
Yan Zhou, Li Yonggao, Wei Chen, Bingzhong Fu, B.S. Yuan, Liming Yu, Mei Huang, Shi Zhongbing, Xuru Duan, P.W. Shi, Boyu Zhang, Jiaxuan Li, Xiaoquan Ji, Z. T. Liu, Shaodong Song, Wulyu Zhong, Yuhong Xu, Z.C. Yang, Qingwei Yang, Xuantong Ding, Xianming Song, Min Jiang |
| Rok vydání: |
2017 |
| Předmět: |
|
| Zdroj: |
EPJ Web of Conferences, Vol 147, p 01003 (2017) |
| ISSN: |
2100-014X |
| DOI: |
10.1051/epjconf/201714701003 |
| Popis: |
Understanding the physics of energetic particles (EP) is crucial for the burning plasmas in next generation fusion devices such as ITER. In this work, three types of internal kink modes (a saturated internal kink mode (SK), a resonant internal kink mode (RK), and a double e-fishbone) excited by energetic particles in the low density discharges during ECRH/ECCD heating have been studied by the newly developed 24(poloidal) × 16(radial) = 384 channel ECEI system on the HL-2A tokamak. The SK and RK rotate in the electron diamagnetic direction poloidally and are destabilized by the energetic trapped electrons. The SK is destabilized in the case of qmin > 1, while the RK is destabilized in the case of qmin < 1. The double e-fishbone, which has two m/n = 1/1 modes propagating in the opposite directions poloidally, has been observed during plasma current ramp-up with counter-ECCD. Strong thermal transfer and mode coupling between the two m/n = 1/1 modes have been studied. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
