Active control of divertor heat and particle fluxes in EAST towards advanced steady state operations

被引：5

作者：

Wang, L. ^{[1
,2
]}

Guo, H. Y. ^{[1
,3
]}

Li, J. ^{[1
]}

Wan, B. N. ^{[1
]}

Gong, X. Z. ^{[1
]}

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

Hu, J. S. ^{[1
]}

Liang, Y. ^{[1
,4
]}

Xu, G. S. ^{[1
]}

Zou, X. L. ^{[5
]}

Loarte, A. ^{[6
]}

Maingi, R. ^{[7
]}

Menard, J. E. ^{[7
]}

Luo, G. N. ^{[1
]}

Gao, X. ^{[1
]}

Hu, L. Q. ^{[1
]}

Gan, K. F. ^{[1
]}

Liu, S. C. ^{[1
]}

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

Chen, R. ^{[1
]}

Sun, Z. ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China

[2] Dalian Univ Technol, Dalian 116024, Peoples R China

[3] Gen Atom Co, San Diego, CA 92186 USA

[4] Assoc EURATOM FZJ, D-52425 Julich, Germany

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

[6] ITER Org, F-13115 St Paul Les Durance, France

[7] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA

来源：

JOURNAL OF NUCLEAR MATERIALS | 2015年 / 463卷

基金：

中国国家自然科学基金;

关键词：

Molecular beams - Plasma simulation - Tokamak devices - Fusion reactor divertors - Plasma turbulence;

D O I：

10.1016/j.jnucmat.2014.10.022

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Significant progress has been made in EAST towards advanced steady state operations by active control of divertor heat and particle fluxes. Many innovative techniques have been developed to mitigate transient ELM and stationary heat fluxes on the divertor target plates. It has been found that lower hybrid current drive (LHCD) can lead to edge plasma ergodization, striation of the stationary heat flux and lower ELM transient heat and particle fluxes. With multi-pulse supersonic molecular beam injection (SMBI) to quantitatively regulate the divertor particle flux, the divertor power footprint pattern can be actively modified. H-modes have been extended over 30 s in EAST with the divertor peak heat flux and the target temperature being controlled well below 2 MW/m(2) and 250 degrees C, respectively, by integrating these new methods, coupled with advanced lithium wall conditioning and internal divertor pumping, along with an edge coherent mode to provide continuous particle and power exhaust. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：99 / 103

页数：5