First results from H-mode plasmas generated by ICRF heating in the EAST

First results from H-mode plasmas generated by ICRF heating in the EAST
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东部地区 ICRF 加热产生的 H 模式等离子体的第一个结果

DOI:
10.1088/0029-5515/53/2/023004
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发表时间:
2013-01
期刊:
影响因子:
3.3
通讯作者:
Hosea, J. C.
Hosea, J. C.
中科院分区:
物理与天体物理1区
文献类型:
--
作者:
Luo, C.;Zhang, L.;Hu, L. Q.;Song, Y. T.;Yu, C. X.;Liu, W. D.;Wukitch, S.;Wilson, J. R.;Hosea, J. C.

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在EAST上用离子回旋频率范围(ICRF)加热产生了氘高约束(H模)等离子体,持续时间可达3.45 s。H-模式接入通过用锂涂覆铍瓦的第一壁来实现,以减少来自壁的氢再循环。用27 MHz ICRF加热含氢氘等离子体,产生了等离子体电流在0.4 ~ 0.6 MA,轴向环向磁场在1.85 ~ 1.95 T的H模等离子体。进入H模式所需的ICRF输入功率为1.6-1.8 MW。线平均密度在(1.83-2.3)× 1019 m−3之间。200-500 Hz的III型边缘局域模式活动期间观察到的H-模式阶段。H模式限制因子H98 IPB(y,2)为10.7。
Deuterium high-confinement (H-mode) plasmas, lasting up to 3.45 s, have been generated in the EAST by ion cyclotron range of frequency (ICRF) heating. H-mode access was achieved by coating the molybdenum-tiled first wall with lithium to reduce the hydrogen recycling from the wall. H-mode plasmas with plasma currents between 0.4 and 0.6 MA and axial toroidal magnetic fields between 1.85 and 1.95 T were generated by 27 MHz ICRF heating of deuterium plasma with hydrogen minority. The ICRF input power required to access the H-mode was 1.6–1.8 MW. The line-averaged density was in the range (1.83–2.3) × 1019 m−3. 200–500 Hz type-III edge localized mode activity was observed during the H-mode phase. The H-mode confinement factor, H98IPB(y, 2), was ∼0.7.
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发表时间: 1987-11
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