Observation and analysis of lower-hybrid-current-drive density limit in EAST

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成果类型：

期刊论文

作者：

Li, M. H.;Baek, S. G.;Wallace, G. M.;Ding, B. J.;Wu, C. B.;...

通讯作者：

B.J. Ding<&wdkj&>M. Wang

作者机构：

[Zhai, X. M.; Yang, H.; Lin, S. Y.; Ding, B. J.; Zhang, X. J.; Wu, Z. G.; Liu, L.; Yan, G. H.; Gong, X. Z.; Yan, N.; Zang, Q.; Zhao, H. L.; Wang, M.; Wu, C. B.; Zhao, L. M.; Li, M. H.; Huang, J.] Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China.

[Baek, S. G.; Bonoli, P. T.; Wallace, G. M.] MIT, Plasma Sci & Fus Ctr, Cambridge, MA 02139 USA.

[Li, X. X.] Univ South China, Dept Nucl Phys, Hengyang 421001, Peoples R China.

通讯机构：

[B.J. Ding; M. Wang] I

Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China

语种：

英文

关键词：

lower hybrid current drive;current drive efficiency;density limit;parametric decay instability;wave accessibility

期刊：

Nuclear Fusion

ISSN：

0029-5515

年：

2022

卷：

期：

页码：

126055

DOI：

10.1088/1741-4326/ac99ed

基金类别：

National Natural Science Foundation of China [11775259, 11975266, 11805233, 11975276]; Comprehensive Research Facility for Fusion Technology Program of China [2018-000052-73-01-001228]; Anhui Provincial Natural Science Foundation [2008085J04]; US Department of Energy [DE-SC0010492]

机构署名：

本校为其他机构

院系归属：

国防科学技术学院

摘要：

Lower hybrid current drive (LHCD) experiments with line-averaged density up to similar to 5.1 x 10(19) m(-3) were performed in EAST L-mode plasmas. When the line-averaged density rises above a critical value, the hard x-ray (HXR) emission falls to the noise level, indicating that the LHCD density limit is encountered. The experimental results show that the LHCD density limit can be increased with higher wave source frequency (f (0)) and higher magnetic field (B (t)). Although a higher LHCD density limit is obtained by a higher magnetic field for both 2.45 GHz and 4.6 GHz waves, the results sho...

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Observation and analysis of lower-hybrid-current-drive density limit in EAST

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