Effort of lower hybrid current drive experiments toward to H-mode in EAST

B. J. Ding; M. H. Li; F. K. Liu; J. F. Shan; Y. C. Li; M. Wang; L. Liu; L. M. Zhao; Y. Yang; Z. G. Wu; J. Q. Feng; H. C. Hu; H. Jia; M. Cheng; Q. Zang; B. Lyu; Y. M. Duan; S. Y. Lin; J. H. Wu; J. Hillairet; A. Ekedahl; Y. Peysson; M. Goniche; A. A. Tuccillo; R. Cesario; L. Amicucci; B. Shen; X. Z. Gong; G. S. Xu; H. L. Zhao; L. Q. Hu; J. G. Li; B. N. Wan

doi:10.1088/0029-5515/57/2/022022

Effort of lower hybrid current drive experiments toward to H-mode in EAST

B. J. Ding
, M. H. Li
, F. K. Liu
, J. F. Shan
, Y. C. Li
, M. Wang
, L. Liu
, L. M. Zhao
, Y. Yang
, Z. G. Wu
, J. Q. Feng
, H. C. Hu
, H. Jia
, M. Cheng
, Q. Zang
, B. Lyu
, Y. M. Duan
, S. Y. Lin
, J. H. Wu
, J. Hillairet

A. Ekedahl, Y. Peysson, M. Goniche, A. A. Tuccillo, R. Cesario, L. Amicucci, B. Shen, X. Z. Gong, G. S. Xu, H. L. Zhao, L. Q. Hu, J. G. Li, B. N. Wan

School of Electrical Engineering

CAS - Institute of Plasma Physics
Commissariat à l’énergie atomique et aux énergies alternatives
Agenzia nazionale per le nuove tecnologie, l'energia e lo sviluppo economico sostenibile

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

26 Scopus citations

Abstract

Lower hybrid current drive (LHCD) is an effective tool to achieve high confinement (H-mode) plasma in EAST. To utilize LHCD for accessing H-mode plasma, efforts have been made to improve LHW (lower hybrid wave)-plasma coupling and current drive capability at high density. Improved LHW-plasma coupling by means of local gas puffing and gas puffing from the electron side is routinely used during EAST operation with LHCD. High density experiments suggest that low recycling and high LH frequency are preferred for LHCD experiments at high density, consistent with previous results in other machines. The effect of LHCD on the current profile in EAST demonstrates that it is possible to control the plasma profile by optimizing the LHW spectrum. Repeatable H-mode plasma was obtained by LHCD and the maximum density during H-mode with the combination of 2.45 GHz and 4.6 GHz LH waves was up to 4.5 × 10¹⁹ m^-3.

Original language	English
Article number	022022
Journal	Nuclear Fusion
Volume	57
Issue number	2
DOIs	https://doi.org/10.1088/0029-5515/57/2/022022
State	Published - Feb 2017

Keywords

coupling
H-mode
lower hybrid current drive
tokamak

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10.1088/0029-5515/57/2/022022

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Ding, B. J., Li, M. H., Liu, F. K., Shan, J. F., Li, Y. C., Wang, M., Liu, L., Zhao, L. M., Yang, Y., Wu, Z. G., Feng, J. Q., Hu, H. C., Jia, H., Cheng, M., Zang, Q., Lyu, B., Duan, Y. M., Lin, S. Y., Wu, J. H., ... Wan, B. N. (2017). Effort of lower hybrid current drive experiments toward to H-mode in EAST. Nuclear Fusion, 57(2), Article 022022. https://doi.org/10.1088/0029-5515/57/2/022022

@article{8fb86787c88b40fe952568518db1a1ec,

title = "Effort of lower hybrid current drive experiments toward to H-mode in EAST",

abstract = "Lower hybrid current drive (LHCD) is an effective tool to achieve high confinement (H-mode) plasma in EAST. To utilize LHCD for accessing H-mode plasma, efforts have been made to improve LHW (lower hybrid wave)-plasma coupling and current drive capability at high density. Improved LHW-plasma coupling by means of local gas puffing and gas puffing from the electron side is routinely used during EAST operation with LHCD. High density experiments suggest that low recycling and high LH frequency are preferred for LHCD experiments at high density, consistent with previous results in other machines. The effect of LHCD on the current profile in EAST demonstrates that it is possible to control the plasma profile by optimizing the LHW spectrum. Repeatable H-mode plasma was obtained by LHCD and the maximum density during H-mode with the combination of 2.45 GHz and 4.6 GHz LH waves was up to 4.5 × 1019 m-3.",

keywords = "coupling, H-mode, lower hybrid current drive, tokamak",

author = "Ding, \{B. J.\} and Li, \{M. H.\} and Liu, \{F. K.\} and Shan, \{J. F.\} and Li, \{Y. C.\} and M. Wang and L. Liu and Zhao, \{L. M.\} and Y. Yang and Wu, \{Z. G.\} and Feng, \{J. Q.\} and Hu, \{H. C.\} and H. Jia and M. Cheng and Q. Zang and B. Lyu and Duan, \{Y. M.\} and Lin, \{S. Y.\} and Wu, \{J. H.\} and J. Hillairet and A. Ekedahl and Y. Peysson and M. Goniche and Tuccillo, \{A. A.\} and R. Cesario and L. Amicucci and B. Shen and Gong, \{X. Z.\} and Xu, \{G. S.\} and Zhao, \{H. L.\} and Hu, \{L. Q.\} and Li, \{J. G.\} and Wan, \{B. N.\}",

note = "Publisher Copyright: {\textcopyright} 2016 IAEA, Vienna.",

year = "2017",

month = feb,

doi = "10.1088/0029-5515/57/2/022022",

language = "英语",

volume = "57",

journal = "Nuclear Fusion",

issn = "0029-5515",

publisher = "IOP Publishing Ltd.",

number = "2",

}

Ding, BJ, Li, MH, Liu, FK, Shan, JF, Li, YC, Wang, M, Liu, L, Zhao, LM, Yang, Y, Wu, ZG, Feng, JQ, Hu, HC, Jia, H, Cheng, M, Zang, Q, Lyu, B, Duan, YM, Lin, SY, Wu, JH, Hillairet, J, Ekedahl, A, Peysson, Y, Goniche, M, Tuccillo, AA, Cesario, R, Amicucci, L, Shen, B, Gong, XZ, Xu, GS, Zhao, HL, Hu, LQ, Li, JG & Wan, BN 2017, 'Effort of lower hybrid current drive experiments toward to H-mode in EAST', Nuclear Fusion, vol. 57, no. 2, 022022. https://doi.org/10.1088/0029-5515/57/2/022022

TY - JOUR

T1 - Effort of lower hybrid current drive experiments toward to H-mode in EAST

AU - Ding, B. J.

AU - Li, M. H.

AU - Liu, F. K.

AU - Shan, J. F.

AU - Li, Y. C.

AU - Wang, M.

AU - Liu, L.

AU - Zhao, L. M.

AU - Yang, Y.

AU - Wu, Z. G.

AU - Feng, J. Q.

AU - Hu, H. C.

AU - Jia, H.

AU - Cheng, M.

AU - Zang, Q.

AU - Lyu, B.

AU - Duan, Y. M.

AU - Lin, S. Y.

AU - Wu, J. H.

AU - Hillairet, J.

AU - Ekedahl, A.

AU - Peysson, Y.

AU - Goniche, M.

AU - Tuccillo, A. A.

AU - Cesario, R.

AU - Amicucci, L.

AU - Shen, B.

AU - Gong, X. Z.

AU - Xu, G. S.

AU - Zhao, H. L.

AU - Hu, L. Q.

AU - Li, J. G.

AU - Wan, B. N.

PY - 2017/2

Y1 - 2017/2

N2 - Lower hybrid current drive (LHCD) is an effective tool to achieve high confinement (H-mode) plasma in EAST. To utilize LHCD for accessing H-mode plasma, efforts have been made to improve LHW (lower hybrid wave)-plasma coupling and current drive capability at high density. Improved LHW-plasma coupling by means of local gas puffing and gas puffing from the electron side is routinely used during EAST operation with LHCD. High density experiments suggest that low recycling and high LH frequency are preferred for LHCD experiments at high density, consistent with previous results in other machines. The effect of LHCD on the current profile in EAST demonstrates that it is possible to control the plasma profile by optimizing the LHW spectrum. Repeatable H-mode plasma was obtained by LHCD and the maximum density during H-mode with the combination of 2.45 GHz and 4.6 GHz LH waves was up to 4.5 × 1019 m-3.

AB - Lower hybrid current drive (LHCD) is an effective tool to achieve high confinement (H-mode) plasma in EAST. To utilize LHCD for accessing H-mode plasma, efforts have been made to improve LHW (lower hybrid wave)-plasma coupling and current drive capability at high density. Improved LHW-plasma coupling by means of local gas puffing and gas puffing from the electron side is routinely used during EAST operation with LHCD. High density experiments suggest that low recycling and high LH frequency are preferred for LHCD experiments at high density, consistent with previous results in other machines. The effect of LHCD on the current profile in EAST demonstrates that it is possible to control the plasma profile by optimizing the LHW spectrum. Repeatable H-mode plasma was obtained by LHCD and the maximum density during H-mode with the combination of 2.45 GHz and 4.6 GHz LH waves was up to 4.5 × 1019 m-3.

KW - coupling

KW - H-mode

KW - lower hybrid current drive

KW - tokamak

UR - https://www.scopus.com/pages/publications/85011011178

U2 - 10.1088/0029-5515/57/2/022022

DO - 10.1088/0029-5515/57/2/022022

M3 - 文章

AN - SCOPUS:85011011178

SN - 0029-5515

VL - 57

JO - Nuclear Fusion

JF - Nuclear Fusion

IS - 2

M1 - 022022

ER -

Effort of lower hybrid current drive experiments toward to H-mode in EAST

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Keywords

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