Integrated Operating Scenario to Achieve 100-Second, High Electron Temperature Discharge on EAST ⁄-猫眼课题宝

DOI：

10.1088/1009-0630/18/5/01

发表时间：

2016-04

期刊：

Plasma Science & Technology

影响因子：

1.7

通讯作者：

中科院分区：

物理与天体物理3区

文献类型：

作者：

J. Qian;X. Gong;B. Wan;Fukun Liu;Mao Wang;Handong Xu;Chundong Hu;Liang Wang;E. Li;L. Zeng;A. Ti;B. Shen;Shiyao Lin;L. Shao;Q. Zang;Haiqing Liu;Bin Zhang;Youwen Sun;Guosheng Xu;Y. Liang;B. Xiao;Liqun Hu;Jian-gang Li;East Team

首次通过等离子体形状的综合控制，移动热通量，粒子排气，墙壁调节，杂质管理以及多个加热和电流驱动功率的耦合，首次在东部产生了高电子温度的固定脉冲等离子体保持较低的单个无效分离构型在0.4 mA，Q95≈7.0的等离子体电流下保持103 s，峰值电子温度> 4.5 keV和A中央密度NE（0）〜2.5×1019 M-3。在4.6 GHz处的杂交波，140 GHz的0.5 MW电子回旋加热，并在60 kV处注入的0.4 MW调制中性氘束。 Cyclotron和较低的混合电子加热，电流驱动和East固定等离子体的能量限制。

Stationary long pulse plasma of high electron temperature was produced on EAST for the first time through an integrated control of plasma shape, divertor heat flux, particle exhaust, wall conditioning, impurity management, and the coupling of multiple heating and current drive power. A discharge with a lower single null divertor configuration was maintained for 103 s at a plasma current of 0.4 MA, q95 ≈7.0, a peak electron temperature of >4.5 keV, and a central density ne(0)~2.5×1019 m−3. The plasma current was nearly non-inductive (Vloop <0.05 V, poloidal beta ~ 0.9) driven by a combination of 0.6 MW lower hybrid wave at 2.45 GHz, 1.4 MW lower hybrid wave at 4.6 GHz, 0.5 MW electron cyclotron heating at 140 GHz, and 0.4 MW modulated neutral deuterium beam injected at 60 kV. This progress demonstrated strong synergy of electron cyclotron and lower hybrid electron heating, current drive, and energy confinement of stationary plasma on EAST. It further introduced an example of integrated "hybrid" operating scenario of interest to ITER and CFETR.

Integrated Operating Scenario to Achieve 100-Second, High Electron Temperature Discharge on EAST ⁄

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