Ion heating by lower hybrid wave in the HT-7 tokamak

S. X. Liu; B. N. Wan; G. L. Kuang; X. Gao; L. Q. Hu; P. J. Qin; Y. J. Shi; J. G. Li; J. K. Xie

doi:10.1088/0741-3335/43/6/305

Ion heating by lower hybrid wave in the HT-7 tokamak

S. X. Liu
, B. N. Wan
, G. L. Kuang
, X. Gao
, L. Q. Hu
, P. J. Qin
, Y. J. Shi
, J. G. Li
, J. K. Xie

School of Electrical Engineering

CAS - Institute of Plasma Physics

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

10 Scopus citations

Abstract

Lower hybrid wave (LHW) heating has been investigated in the HT-7 superconducting tokamak. It has been observed that the plasma performance is obviously enhanced by LHW heating. The ion temperature was increased by 0.4 keV and the electron temperature by 0.3 keV. Meanwhile the central line-averaged electron density was increased from 1 × 10¹⁹ to 2.6 × 10¹⁹ m^-3. The high-energy ion tail produced by the LHW was observed from the charge-exchange spectra measured by neutral particle analysis. An ion heating efficiency of (2-3) × 10¹³ eV kW^-1 cm^-3 was obtained in the experiments. The evolution of the profiles of ion temperature shows clearly an off-axis ion heating by LHW, which is in agreement with code simulations.

Original language	English
Pages (from-to)	805-811
Number of pages	7
Journal	Plasma Physics and Controlled Fusion
Volume	43
Issue number	6
DOIs	https://doi.org/10.1088/0741-3335/43/6/305
State	Published - Jun 2001

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title = "Ion heating by lower hybrid wave in the HT-7 tokamak",

abstract = "Lower hybrid wave (LHW) heating has been investigated in the HT-7 superconducting tokamak. It has been observed that the plasma performance is obviously enhanced by LHW heating. The ion temperature was increased by 0.4 keV and the electron temperature by 0.3 keV. Meanwhile the central line-averaged electron density was increased from 1 × 1019 to 2.6 × 1019 m-3. The high-energy ion tail produced by the LHW was observed from the charge-exchange spectra measured by neutral particle analysis. An ion heating efficiency of (2-3) × 1013 eV kW-1 cm-3 was obtained in the experiments. The evolution of the profiles of ion temperature shows clearly an off-axis ion heating by LHW, which is in agreement with code simulations.",

author = "Liu, \{S. X.\} and Wan, \{B. N.\} and Kuang, \{G. L.\} and X. Gao and Hu, \{L. Q.\} and Qin, \{P. J.\} and Shi, \{Y. J.\} and Li, \{J. G.\} and Xie, \{J. K.\}",

year = "2001",

month = jun,

doi = "10.1088/0741-3335/43/6/305",

language = "英语",

volume = "43",

pages = "805--811",

journal = "Plasma Physics and Controlled Fusion",

issn = "0741-3335",

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TY - JOUR

T1 - Ion heating by lower hybrid wave in the HT-7 tokamak

AU - Liu, S. X.

AU - Wan, B. N.

AU - Kuang, G. L.

AU - Gao, X.

AU - Hu, L. Q.

AU - Qin, P. J.

AU - Shi, Y. J.

AU - Li, J. G.

AU - Xie, J. K.

PY - 2001/6

Y1 - 2001/6

N2 - Lower hybrid wave (LHW) heating has been investigated in the HT-7 superconducting tokamak. It has been observed that the plasma performance is obviously enhanced by LHW heating. The ion temperature was increased by 0.4 keV and the electron temperature by 0.3 keV. Meanwhile the central line-averaged electron density was increased from 1 × 1019 to 2.6 × 1019 m-3. The high-energy ion tail produced by the LHW was observed from the charge-exchange spectra measured by neutral particle analysis. An ion heating efficiency of (2-3) × 1013 eV kW-1 cm-3 was obtained in the experiments. The evolution of the profiles of ion temperature shows clearly an off-axis ion heating by LHW, which is in agreement with code simulations.

AB - Lower hybrid wave (LHW) heating has been investigated in the HT-7 superconducting tokamak. It has been observed that the plasma performance is obviously enhanced by LHW heating. The ion temperature was increased by 0.4 keV and the electron temperature by 0.3 keV. Meanwhile the central line-averaged electron density was increased from 1 × 1019 to 2.6 × 1019 m-3. The high-energy ion tail produced by the LHW was observed from the charge-exchange spectra measured by neutral particle analysis. An ion heating efficiency of (2-3) × 1013 eV kW-1 cm-3 was obtained in the experiments. The evolution of the profiles of ion temperature shows clearly an off-axis ion heating by LHW, which is in agreement with code simulations.

UR - https://www.scopus.com/pages/publications/0035364808

U2 - 10.1088/0741-3335/43/6/305

DO - 10.1088/0741-3335/43/6/305

M3 - 文章

AN - SCOPUS:0035364808

SN - 0741-3335

VL - 43

SP - 805

EP - 811

JO - Plasma Physics and Controlled Fusion

JF - Plasma Physics and Controlled Fusion

IS - 6

ER -

Ion heating by lower hybrid wave in the HT-7 tokamak

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