Overview of experimental results on HL-2A

被引:74
作者
Duan, X. R. [1 ]
Ding, X. T. [1 ]
Dong, J. Q. [1 ]
Yang, Q. W. [1 ]
Yan, L. W. [1 ]
Liu, Yi [1 ]
Zou, X. L. [3 ]
Liu, D. Q. [1 ]
Xuan, W. M. [1 ]
Chen, L. Y. [1 ]
Rao, J. [1 ]
Song, X. M. [1 ]
Mao, W. C. [1 ]
Wang, Q. M. [1 ]
Cao, Z. [1 ]
Li, B. [1 ]
Cao, J. Y. [1 ]
Lei, G. J. [1 ]
Zhang, J. H. [1 ]
Li, X. D. [1 ]
Wang, S. J. [1 ]
Liu, A. D. [2 ]
Bu, M. N. [1 ]
Chen, Y. H. [1 ]
Chen, W. [1 ]
Cheng, J. [1 ]
Cui, C. H. [1 ]
Cui, Z. Y. [1 ]
Deng, Z. C. [1 ]
Dong, Y. B. [1 ]
Feng, B. B. [1 ]
Gao, Q. D. [1 ]
Han, X. Y. [1 ]
Hong, W. Y. [1 ]
Hu, H. T. [1 ]
Huang, M. [1 ]
Huang, Y. [1 ]
Ji, X. Q. [1 ]
Kang, Z. H. [1 ]
Lan, T. [2 ]
Li, G. S. [1 ]
Li, H. J. [1 ]
Li, Qing [1 ]
Li, Qiang [1 ]
Li, W. [1 ]
Li, Y. G. [1 ]
Li, Z. J. [1 ]
Liu, Z. T. [1 ]
Luo, C. W. [1 ]
Mao, X. H. [1 ]
机构
[1] SW Inst Phys, Chengdu, Peoples R China
[2] Univ Sci & Technol China, Hefei 230026, Peoples R China
[3] Assoc Euratom CEA, IRFM, F-13108 St Paul Les Durance, France
关键词
INTERNAL TRANSPORT BARRIERS; NONLOCAL TRANSPORT; KINK INSTABILITY; HL-1M TOKAMAK; ZONAL FLOWS; TORE-SUPRA; DIII-D; MODE; DISCHARGES; ELECTRONS;
D O I
10.1088/0029-5515/49/10/104012
中图分类号
O35 [流体力学]; O53 [等离子体物理学];
学科分类号
070204 ; 080103 ; 080704 ;
摘要
Significant experimental advances have been made on the HL-2A tokamak along with substantial improvement and development of the hardware. A spontaneous particle transport barrier has been observed in Ohmic discharges without any external momentum input. The barrier was evidenced by a density perturbation study using modulated supersonic molecular beam injection (SMBI) and microwave reflectometry. The new features of the non-local transport effect induced with SMBI have been analysed. The three-dimensional spectral structures of the low frequency zonal flow, the geodesic acoustic mode (GAM) and the quasi-mode-like low frequency fluctuations have been observed simultaneously for the first time. In addition, the spectral structure of the density fluctuations of GAM was also identified. The e-fishbone instability excited by energetic electrons deviated from Maxwellian distribution has been investigated via a 10-channel CdTe hard x-ray detector. It was found that the e-fishbone was correlated with the existence of energetic electrons of 30-70 keV. The MHD experiment has indicated that the suppression of m/n = 2/1 tearing modes may be sustained by ECRH modulation at a frequency of about 10 Hz.
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页数:10
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