Overview of recent HL-2A experiments

被引：38

作者：

Duan, X. R. ^{[1
]}

Liu, Yi ^{[1
]}

Xu, M. ^{[1
]}

Yan, L. W. ^{[1
]}

Xu, Y. ^{[1
]}

Song, X. M. ^{[1
]}

Dong, J. Q. ^{[1
]}

Ding, X. T. ^{[1
]}

Chen, L. Y. ^{[1
]}

Lu, B. ^{[1
]}

Liu, D. Q. ^{[1
]}

Rao, J. ^{[1
]}

Xuan, W. M. ^{[1
]}

Yang, Q. W. ^{[1
]}

Zheng, G. Y. ^{[1
]}

Zou, X. L. ^{[2
]}

Liu, Y. Q. ^{[3
]}

Zhong, W. L. ^{[1
]}

Zhao, K. J. ^{[1
]}

Ji, X. Q. ^{[1
]}

Mao, W. C. ^{[1
]}

Wang, Q. M. ^{[1
]}

Li, Q. ^{[1
]}

Cao, J. Y. ^{[1
]}

Cao, Z. ^{[1
]}

Lei, G. J. ^{[1
]}

Zhang, J. H. ^{[1
]}

Li, X. D. ^{[1
]}

Bai, X. Y. ^{[1
]}

Cheng, J. ^{[1
]}

Chen, W. ^{[1
]}

Cui, Z. Y. ^{[1
]}

Delpech, L. ^{[2
]}

Diamond, P. H. ^{[4
,5
]}

Dong, Y. B. ^{[1
]}

Ekedahl, A. ^{[2
]}

Hoang, T. ^{[2
]}

Huang, Y. ^{[1
]}

Ida, K. ^{[6
]}

Itoh, K. ^{[6
]}

Itoh, S. -I. ^{[7
]}

Isobe, M. ^{[6
]}

Inagaki, S. ^{[7
]}

Mazon, D. ^{[2
]}

Morita, S. ^{[6
]}

Peysson, Y. ^{[2
]}

Shi, Z. B. ^{[1
]}

Wang, X. G. ^{[8
]}

Xiao, G. L. ^{[1
]}

Yu, D. L. ^{[1
]}

机构：

[1] Southwestern Inst Phys, POB 432, Chengdu 610041, Peoples R China

[2] CEA, IRFM, F-13108 St Paul Les Durance, France

[3] CCFE, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England

[4] UCSD, CASS, La Jolla, CA 92093 USA

[5] UCSD, Dept Phys, La Jolla, CA 92093 USA

[6] Natl Inst Fus Sci, 322-6 Oroshi Cho, Toki, Gifu 5095292, Japan

[7] Kyushu Univ, Appl Mech Res Inst, Kasugakeon 6-1, Kasuga, Fukuoka 8168580, Japan

[8] Harbin Inst Technol, Harbin 150006, Hei Long Jiang, Peoples R China

来源：

NUCLEAR FUSION | 2017年 / 57卷 / 10期

关键词：

tokamak; plasma physics; HL-2A; ION TEMPERATURE-GRADIENT; PLASMAS; MODES; TOKAMAK;

D O I：

10.1088/1741-4326/aa6a72

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：

Since the last Fusion Energy Conference, significant progress has been made in the following areas. The first high coupling efficiency low-hybrid current drive (LHCD) with a passive-active multi-junction (PAM) antenna was successfully demonstrated in the H-mode on the HL-2A tokamak. Double critical impurity gradients of electromagnetic turbulence were observed in H-mode plasmas. Various ELM mitigation techniques have been investigated, including supersonic molecular beam injection (SMBI), impurity seeding, resonant magnetic perturbation (RMP) and low-hybrid wave (LHW). The ion internal transport barrier was observed in neutral beam injection (NBI) heated plasmas. Neoclassical tearing modes (NTMs) driven by the transient perturbation of local electron temperature during non-local thermal transport events have been observed, and a new type of non-local transport triggered by the ion fishbone was found. A long-lasting runaway electron plateau was achieved after argon injection and the runaway current was successfully suppressed by SMBI. It was found that low-n Alfvenic ion temperature gradient (AITG) modes can be destabilized in ohmic plasmas, even with weak magnetic shear and low-pressure gradients. For the first time, the synchronization of geodesic acoustic mode (GAM) and magnetic fluctuations was observed in edge plasmas, revealing frequency entrainment and phase lock. The spatiotemporal features of zonal flows were also studied using multi-channel correlation Doppler reflectometers.

引用

页数：11

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