Long Pulse H-Mode Scenarios Sustained by RF Heating on EAST
Long Pulse H-Mode Scenarios Sustained by RF Heating on EAST
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DOI：
10.1088/1009-0630/17/6/02
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发表时间：
2015-01
影响因子：
1.7
通讯作者：
Xiang Gao;Guoqiang Li;Tao Zhang;Yao Yang;X. Gong;Z. Liu;Q. Ren;Haiqing Liu;L. Zeng;Yaowei Yu;Shaocheng Liu;Xiaoju Liu;Shoubiao Zhang;H. Cai;Xuemei Wu;Jian-gang Li
中科院分区：
文献类型：
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作者：
Xiang Gao;Guoqiang Li;Tao Zhang;Yao Yang;X. Gong;Z. Liu;Q. Ren;Haiqing Liu;L. Zeng;Yaowei Yu;Shaocheng Liu;Xiaoju Liu;Shoubiao Zhang;H. Cai;Xuemei Wu;Jian-gang Li
在过去的实验中，EAST已经证明了其使用RF加热（LHCD和ICRF）进行长脉冲操作的能力。实现长脉冲H模实验的一个关键问题是维持稳态工作的等离子体电流。基于输运程序ONETWO及其耦合的射频程序GENRAY的计算，最近提出了两种方案，分别实现了10 s H模等离子体（Ip = 400 kA，< n e>= 4.5× 1019m − 3，β N= 2）和100 s H模等离子体（Ip = 280 kA，< n e>= 3.5× 1019m − 3，β N= 1.8）.当前低混合波的驱动是这两种情景中的一个重要问题。给出了EAST H模等离子体低杂波电流驱动的实验结果。
EAST has demonstrated its capability of long pulse operation using RF heating (LHCD and ICRF) in past experiments. One key issue to realize the long pulse H-mode experiments is to sustain the plasma current for steady state operation. Based on the calculations of the transport code ONETWO and its coupled RF code GENRAY, two scenarios have been proposed to achieve the 10 s H-mode plasma with I p= 400 kA,< n e>= 4.5× 10 19 m− 3, β N= 2, and the 100 s H-mode plasma with I p= 280 kA,< n e>= 3.5× 10 19 m− 3, β N= 1.8 recently. The current drive of lower hybrid wave is an important issue in the two scenarios. An experimental result on lower hybrid current drive in H-mode plasmas on EAST is also presented.