Speaker
Prof.
Xiang Gao
(Institute of Plasma Physics, Chinese Academy of Sciences)
Description
The ITER baseline scenario of the standard H-mode operation (beta-N = 1.8) will be mainly sustained by inductive plasma current drive with the limited pulse duration. Two advanced scenarios of the hybrid scenario (beta-N = 2 ~ 2.5) and steady-state scenario (beta-N > 2.6) are being developed towards long pulse operation in present tokamak devices. A pulse duration of 32 s (about 20R, where R is current diffusion time) H-mode plasma with small ELMs and lower normalized beta (beta-N < 1) was achieved on EAST superconducting tokamak in 2012. Long pulse H mode with higher normalized beta (beta-N = 1.8 ~ 2) plasma scenario has also been suggested on EAST tokamak recently. In 2015 campaign, long pulse high power heating discharges with the NBI system (PNBI < 4 MW) and the 4.6 GHz LHW system (PLHW < 3 MW) were carried out on EAST tokamak. Higher normalized beta (beta-N = 1.5 ~ 2) plasmas were achieved on EAST experiments. Key issues towards long pulse high beta-N operation on EAST tokamak are discussed and summarized in this paper. This work was supported by National Magnetic Confinement Fusion Program of China (No. 2014GB106000 and 2014GB106003) and the National Natural Science Foundation of China (No. 11275234, 11321092).
| Country or International Organization | China |
|---|---|
| Paper Number | EX/P7-2 |
Primary author
Prof.
Xiang Gao
(Institute of Plasma Physics, Chinese Academy of Sciences)
Co-authors
Dr
Defeng Kong
(Institute of Plasma Physics Chinese Academy of Sciences)
Prof.
Guoqiang Li
(Institute of Plasma Physics, Chinese Academy of Sciences, P.O.Box 1126, Hefei, Anhui 230031, People's Republic of China)
Dr
Haiqing Liu
(Institute of Plasma Physics, Chinese Academy of Sciences, P.O.Box 1126, Hefei, Anhui 230031, People's Republic of China)
Dr
Long Zeng
(Institute of Plasma Physics, Chinese Academy of Sciences, P.O.Box 1126, Hefei, Anhui 230031, People's Republic of China)
Prof.
Qing Zang
(Institute of Plasma Physics, Chinese Academy of Sciences, P.O.Box 1126, Hefei, Anhui 230031, People's Republic of China)
Dr
Tao Zhang
(Institute of Plasma Physics, Chinese Academy of Sciences, P.O. Box 1126, Hefei, Anhui 230031, People’s Republic of China)
Dr
Tingfeng Ming
(Institute of Plasma Physics, Chinese Academy of Sciences, P.O.Box 1126, Hefei, Anhui 230031, People's Republic of China)
Dr
Xiang Han
(Institute of Plasma Physics, Chinese Academy of Sciences, P.O.Box 1126, Hefei, Anhui 230031, People's Republic of China)
Dr
Yao Yang
(Institute of Plasma Physics, Chinese Academy of Sciences, P.O. Box 1126, Hefei, Anhui 230031, People’s Republic of China)
Dr
Yaowei Yu
(Institute of Plasma Physics, Chinese Academy of Sciences, P.O.Box 1126, Hefei, Anhui 230031, People's Republic of China)
Dr
Yumin Wang
(Institute of Plasma Physics, Chinese Academy of Sciences, P.O.Box 1126, Hefei, Anhui 230031, People's Republic of China)
Mr
Zixi Liu
(Institute of Plasma Physics, Chinese Academy of Sciences)
