First experimental results of intrinsic torque on EAST

Xunyu WANG (王勋禺); Bo LYU (吕波); Xingqiang LU (路兴强); Yingying LI (李颖颖); W M SOLOMON; Baolong HAO (郝保龙); Jun CHEN (陈俊); Fudi WANG (王福地); Jia FU (符佳); Hongming ZHANG (张洪明); Jin YANG (杨进); Bin BIN (宾斌); Liang HE (何梁); Yichao LI (李义超); Shunkuan WAN (万顺宽); Xueyu GONG (龚学余); Baonian WAN (万宝年); Minyou YE (叶民友)

doi:10.1088/2058-6272/ab84eb

Plasma Science and Technology > 2020 > 22(6): 65104-065104. > DOI: 10.1088/2058-6272/ab84eb

Xunyu WANG (王勋禺), Bo LYU (吕波), Xingqiang LU (路兴强), Yingying LI (李颖颖), W M SOLOMON, Baolong HAO (郝保龙), Jun CHEN (陈俊), Fudi WANG (王福地), Jia FU (符佳), Hongming ZHANG (张洪明), Jin YANG (杨进), Bin BIN (宾斌), Liang HE (何梁), Yichao LI (李义超), Shunkuan WAN (万顺宽), Xueyu GONG (龚学余), Baonian WAN (万宝年), Minyou YE (叶民友). First experimental results of intrinsic torque on EAST[J]. Plasma Science and Technology, 2020, 22(6): 65104-065104. DOI: 10.1088/2058-6272/ab84eb

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First experimental results of intrinsic torque on EAST

¹ School of Nuclear Science and Technology, University of South China, Hengyang 421001, People's Republic of China
² Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
³ General Atomics, San Diego, CA, 92186-5608, United States of America
⁴ Department of Engineering and Applied Physics, University of Science and Technology of China, Hefei 230026, People's Republic of China

Funds: This work is supported by the National Key Research and Development Program of China (Nos. 2017YFE0301300 and 2017YFE0302000), Key Program of Research and Develop- ment of Hefei Science Center, CAS (No. 2017HSC- KPRD002), Distinguished Young Scholar of Anhui Pro- vincial Natural Science Foundation (1908085J01), the Key Projects of Hunan Provincial Department of Education (18A238), the Key Laboratory of Magnetic Confinement Nuclear Fusion Research in Hengyang (2018KJ108).

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Received Date: December 13, 2019
Revised Date: March 23, 2020
Accepted Date: March 29, 2020

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Abstract

Abstract

Direct measurements of the intrinsic torque profile in L-mode plasmas on the EAST tokamak have been performed using the balanced neutral beam injection. Co- and counter-current neutral beams are modulated to balance the intrinsic and externally injected torques, which result in the rotation profile close to zero and flat. The experimental results show that the intrinsic torque derived from momentum balance equations is found to be in the co-current direction, peaked in the plasma edge and negligibly small in the core.
- intrinsic torque,
- balanced injection,
- momentum transport

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References

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3.	Wang, Z.H., Zhang, B., Gong, X.Z. et al. Electron ITB formation in EAST high poloidal beta plasmas under dominant electron heating. Plasma Physics and Controlled Fusion, 2024, 66(6): 065002. DOI:10.1088/1361-6587/ad3c1a
4.	Gong, S.B., Zhang, T.C., Guo, W.P. et al. Edge Thomson scattering diagnostic with compact polychromators on the HL-3 Tokamak. Journal of Instrumentation, 2023, 18(10): C10019. DOI:10.1088/1748-0221/18/10/C10019

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First experimental results of intrinsic torque on EAST