Effect of lower hybrid current drive on pedestal instabilities in the HL-2A tokamak

被引：17

作者：

Xiao, G. L. ^{[1
,2
]}

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

Zou, X. L. ^{[3
]}

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

Liu, A. D. ^{[4
,5
]}

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

Cheng, J. ^{[1
]}

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

Delpech, L. ^{[3
]}

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

Dong, J. Q. ^{[1
,6
]}

Ekedahl, A. ^{[3
]}

Feng, B. B. ^{[1
]}

Giruzzi, G. ^{[3
]}

Gao, J. M. ^{[1
]}

Goniche, M. ^{[3
]}

Hoang, G. T. ^{[3
]}

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

Jiang, M. ^{[1
]}

Lu, B. ^{[1
]}

Mazon, D. ^{[3
]}

Peysson, Y. ^{[3
]}

Rao, J. ^{[1
]}

Song, S. D. ^{[1
]}

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

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

Wang, C. ^{[1
]}

Xu, M. ^{[1
]}

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

Yang, Z. C. ^{[1
]}

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

Zeng, H. ^{[1
]}

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

Zhang, Y. P. ^{[1
]}

Zhou, Y. ^{[1
]}

机构：

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

[2] Tsinghua Univ, Dept Engn Phys, Beijing 100084, Peoples R China

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

[4] Univ Sci & Technol China, KTX Lab, Hefei 230026, Anhui, Peoples R China

[5] Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Anhui, Peoples R China

[6] Zhejiang Univ, Inst Fus Theory & Simulat, Hangzhou 310027, Zhejiang, Peoples R China

来源：

PHYSICS OF PLASMAS | 2017年 / 24卷 / 12期

基金：

中国国家自然科学基金;

关键词：

EDGE; CONFINEMENT; REGIME;

D O I：

10.1063/1.5009509

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：

Edge localized mode (ELM) mitigation with lower hybrid current drive (LHCD) has been observed in the HL-2A tokamak. This mitigation effect is very sensitive to the parameters as the plasma density and the LHCD absorbed power, i.e., more easily to be observed for high density and large LHCD absorbed power. The divertor peak heat load released by ELM has been significantly reduced during the mitigation phase. The pedestal density gradient is slightly reduced during ELM mitigation, and the plasma rotation velocity and ion temperature are significantly reduced by LHCD. It has been found that the ELM mitigation is not synchronized with the LHCD, while it is synchronized with the increase of the pedestal turbulence, showing that the enhancement of the transport due to the pedestal turbulence can be the direct cause of the ELM mitigation. Published by AIP Publishing.

引用

页数：7

共 50 条

[1] Impact of fuelling and impurity on pedestal dynamics and instabilities in the HL-2A tokamak
Zhong, W. L.
Zou, X. L.
Gao, J. M.
Shi, Z. B.
Feng, B. B.
Cui, Z. Y.
Xu, M.
Shen, Y.
Dong, J. Q.
Ding, X. T.
Duan, X. R.
Liu, Yong
PLASMA PHYSICS AND CONTROLLED FUSION, 2017, 59 (01)
[2] Measurements of the fast electron bremsstrahlung during lower hybrid current drive in the HL-2A tokamak
Zhang, Y. P.
Mazon, D.
Peysson, Y.
Malard, P.
Zhang, P. F.
Zhang, J.
Zou, X. L.
Zhou, J.
Xu, H. B.
Bai, X. Y.
Yang, J. W.
Yuan, G. L.
Song, X. Y.
Li, X.
Zhong, W. L.
Ding, X. T.
Chen, W.
Li, Y. G.
Hoang, T.
Delpech, L.
Ekedahl, A.
Isobe, M.
Song, X. M.
Lu, B.
Liu, Yi
Shi, Z. B.
Yang, Q. W.
Xu, M.
Duan, X. R.
Liu, Y.
AIP ADVANCES, 2019, 9 (08)
[3] Excitation of edge plasma instabilities and their role in pedestal saturation in the HL-2A tokamak
Zhong, W. L.
Zou, X. L.
Shi, Z. B.
Duan, X. R.
Xu, Y.
Xu, M.
Chen, W.
Jiang, M.
Yang, Z. C.
Zhang, B. Y.
Shi, P. W.
Liu, Z. T.
Song, X. M.
Cheng, J.
Ji, X. Q.
Zhou, Y.
Yu, D. L.
Li, J. X.
Dong, J. Q.
Ding, X. T.
Liu, Y.
Yan, L. W.
Yang, Q. W.
Liu, Y.
PLASMA PHYSICS AND CONTROLLED FUSION, 2016, 58 (06)
[4] A Real-Time Hard X-Ray Tomographic System During Lower Hybrid Current Drive on HL-2A Tokamak
Yuan, C.
Fan, W. W.
Zhao, Y. F.
Liu, Z. H.
Cao, J.
Yuan, G. L.
Yin, Z. J.
FUSION SCIENCE AND TECHNOLOGY, 2017, 72 (02) : 129 - 136
[5] LHCD operation region and current drive profile control in the HL-2A tokamak
Jiao, Y.M.
Gao, Q.D.
Hejubian Yu Dengliziti Wuli/Nuclear Fusion and Plasma Physics, 2001, 21 (01):
[6] Numerical studies of electron cyclotron wave current drive on HL-2A tokamak
Li, J. C.
Gong, X. Y.
Dong, J. Q.
Zheng, P. W.
Song, S. D.
Gao, Q. D.
Du, D.
PHYSICS OF PLASMAS, 2015, 22 (06)
[7] Identification of core ion cyclotron instabilities on HL-2A tokamak
Liu, Linzi
Tong, Ruihai
Zou, Xiaolan
Chen, Haotian
Chen, Yang
Dong, Guanqi
Hao, Guangzhou
He, Xiaoxue
Han, Yuxiao
Ji, Xiaoquan
Liang, Anshu
Li, Bo
Li, Jiquan
Li, Yonggao
Liu, Liang
Shi, Zhongbin
Wei, Huiling
Xia, Fan
Xiao, Guoliang
Yin, Jiao
Yu, Deliang
Yuan, Boda
Zhu, Yiren
Zhong, Wulyu
Xu, Min
NUCLEAR FUSION, 2023, 63 (10)
[8] Numerical study on predicting MHD stability of HL-2A tokamak pedestal structure
Sun Zi-Yuan
Wang Yuan-Zhen
Liu Yue
ACTA PHYSICA SINICA, 2022, 71 (22)
[9] Pedestal dynamics across low to high confinement regime in the HL-2A tokamak
Liang, A. S.
Zhong, W. L.
Zou, X. L.
Duan, X. R.
Yang, Z. C.
Wen, J.
Xiao, G. L.
Jiang, M.
Shi, Z. B.
Shi, P. W.
Chen, W.
Song, X. M.
Yu, D. L.
Yan, L. W.
Liu, Y.
Yang, Q. W.
Dong, J. Q.
Ding, X. T.
Xu, M.
PHYSICS OF PLASMAS, 2018, 25 (02)
[10] Dual effects of impurity seeding on pedestal turbulence and ELMs in the HL-2A tokamak
Xiao, G. L.
Zou, X. L.
Zhong, W. L.
Xu, M.
Zhang, Y. P.
Mazon, D.
Dong, C. F.
Dong, J. Q.
Fang, K. R.
Feng, B. B.
Gao, J. M.
Han, M. K.
He, X. X.
Li, J.
Li, Y. G.
Liang, A. S.
Song, X. M.
Shi, Z. B.
Sun, P.
Wen, J.
Yang, Z. C.
Yu, D. L.
Zhang, K.
Duan, X. R.
NUCLEAR FUSION, 2021, 61 (11)

← 1 2 3 4 5 →