Fluctuation-induced dynamo effect in a magnetic confinement plasma

W. Z. Mao; W. X. Ding; H. Q. Liu; A. Ti; D. L. Brower; H. Lian; Y. Q. Chu; L. Zeng; H. L. Zhao; L. Zhang; J. P. Qian; Q. Zang; X. Z. Gong; L. Q. Hu; L. Q. Xu; C. Zhou; T. Lan; A. D. Liu; J. L. Xie; G. Zhuang; Y. T. Song; B. N. Wan; J. G. Li

doi:10.1103/PhysRevResearch.5.L022047

Fluctuation-induced dynamo effect in a magnetic confinement plasma

W. Z. Mao
, W. X. Ding
, H. Q. Liu
, A. Ti
, D. L. Brower
, H. Lian
, Y. Q. Chu
, L. Zeng
, H. L. Zhao
, L. Zhang
, J. P. Qian
, Q. Zang
, X. Z. Gong
, L. Q. Hu
, L. Q. Xu
, C. Zhou
, T. Lan
, A. D. Liu
, J. L. Xie
, G. Zhuang

Y. T. Song, B. N. Wan, J. G. Li

School of Electrical Engineering

University of Science and Technology of China
University of California at Los Angeles
CAS - Institute of Plasma Physics

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

The electron temperature fluctuation-induced dynamo electric field has been measured in the core of high-temperature EAST tokamak plasmas by Faraday-effect polarimetry and electron cyclotron emission. It is found that a dynamo electric field primarily arises from the coherent interaction between radial magnetic-field fluctuations and electron temperature fluctuations associated with the internal kink instability, acting to self-regulate the current profile to prevent sawtooth magnetic reconnection.

Original language	English
Article number	L022047
Journal	Physical Review Research
Volume	5
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevResearch.5.L022047
State	Published - Apr 2023

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10.1103/PhysRevResearch.5.L022047

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Mao, W. Z., Ding, W. X., Liu, H. Q., Ti, A., Brower, D. L., Lian, H., Chu, Y. Q., Zeng, L., Zhao, H. L., Zhang, L., Qian, J. P., Zang, Q., Gong, X. Z., Hu, L. Q., Xu, L. Q., Zhou, C., Lan, T., Liu, A. D., Xie, J. L., ... Li, J. G. (2023). Fluctuation-induced dynamo effect in a magnetic confinement plasma. Physical Review Research, 5(2), Article L022047. https://doi.org/10.1103/PhysRevResearch.5.L022047

@article{03584c01468b4fd4bdd94b80b02bda4d,

title = "Fluctuation-induced dynamo effect in a magnetic confinement plasma",

abstract = "The electron temperature fluctuation-induced dynamo electric field has been measured in the core of high-temperature EAST tokamak plasmas by Faraday-effect polarimetry and electron cyclotron emission. It is found that a dynamo electric field primarily arises from the coherent interaction between radial magnetic-field fluctuations and electron temperature fluctuations associated with the internal kink instability, acting to self-regulate the current profile to prevent sawtooth magnetic reconnection.",

author = "Mao, \{W. Z.\} and Ding, \{W. X.\} and Liu, \{H. Q.\} and A. Ti and Brower, \{D. L.\} and H. Lian and Chu, \{Y. Q.\} and L. Zeng and Zhao, \{H. L.\} and L. Zhang and Qian, \{J. P.\} and Q. Zang and Gong, \{X. Z.\} and Hu, \{L. Q.\} and Xu, \{L. Q.\} and C. Zhou and T. Lan and Liu, \{A. D.\} and Xie, \{J. L.\} and G. Zhuang and Song, \{Y. T.\} and Wan, \{B. N.\} and Li, \{J. G.\}",

note = "Publisher Copyright: {\textcopyright} 2023 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.",

year = "2023",

month = apr,

doi = "10.1103/PhysRevResearch.5.L022047",

language = "英语",

volume = "5",

journal = "Physical Review Research",

issn = "2643-1564",

publisher = "American Physical Society",

number = "2",

}

Mao, WZ, Ding, WX, Liu, HQ, Ti, A, Brower, DL, Lian, H, Chu, YQ, Zeng, L, Zhao, HL, Zhang, L, Qian, JP, Zang, Q, Gong, XZ, Hu, LQ, Xu, LQ, Zhou, C, Lan, T, Liu, AD, Xie, JL, Zhuang, G, Song, YT, Wan, BN & Li, JG 2023, 'Fluctuation-induced dynamo effect in a magnetic confinement plasma', Physical Review Research, vol. 5, no. 2, L022047. https://doi.org/10.1103/PhysRevResearch.5.L022047

TY - JOUR

T1 - Fluctuation-induced dynamo effect in a magnetic confinement plasma

AU - Mao, W. Z.

AU - Ding, W. X.

AU - Liu, H. Q.

AU - Ti, A.

AU - Brower, D. L.

AU - Lian, H.

AU - Chu, Y. Q.

AU - Zeng, L.

AU - Zhao, H. L.

AU - Zhang, L.

AU - Qian, J. P.

AU - Zang, Q.

AU - Gong, X. Z.

AU - Hu, L. Q.

AU - Xu, L. Q.

AU - Zhou, C.

AU - Lan, T.

AU - Liu, A. D.

AU - Xie, J. L.

AU - Zhuang, G.

AU - Song, Y. T.

AU - Wan, B. N.

AU - Li, J. G.

N1 - Publisher Copyright: © 2023 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

PY - 2023/4

Y1 - 2023/4

N2 - The electron temperature fluctuation-induced dynamo electric field has been measured in the core of high-temperature EAST tokamak plasmas by Faraday-effect polarimetry and electron cyclotron emission. It is found that a dynamo electric field primarily arises from the coherent interaction between radial magnetic-field fluctuations and electron temperature fluctuations associated with the internal kink instability, acting to self-regulate the current profile to prevent sawtooth magnetic reconnection.

AB - The electron temperature fluctuation-induced dynamo electric field has been measured in the core of high-temperature EAST tokamak plasmas by Faraday-effect polarimetry and electron cyclotron emission. It is found that a dynamo electric field primarily arises from the coherent interaction between radial magnetic-field fluctuations and electron temperature fluctuations associated with the internal kink instability, acting to self-regulate the current profile to prevent sawtooth magnetic reconnection.

UR - https://www.scopus.com/pages/publications/85163525760

U2 - 10.1103/PhysRevResearch.5.L022047

DO - 10.1103/PhysRevResearch.5.L022047

M3 - 文章

AN - SCOPUS:85163525760

SN - 2643-1564

VL - 5

JO - Physical Review Research

JF - Physical Review Research

IS - 2

M1 - L022047

ER -

Fluctuation-induced dynamo effect in a magnetic confinement plasma

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