EAST steady-state long pulse H-mode with core-edge integration for CFETR

doi:10.1088/1741-4326/ac49ad

	EAST steady-state long pulse H-mode with core-edge integration for CFETR
	Gong, X. Z.4; Garofalo, A. M.1; Huang, J.4; Qian, J. P.2; Ekedah, A.3; Maingi, R.5; Holcomb, C. T.4; Liu, F. K.4; Zhao, Y. P.4; Xiao, B. J.4
刊名	NUCLEAR FUSION
	2022-07-01
卷号	62
关键词	steady state long pulse tokamak
ISSN号	0029-5515
DOI	10.1088/1741-4326/ac49ad
通讯作者	Zhang, B.(binzhang@ipp.ac.cn)
英文摘要	A recent EAST experiment has successfully demonstrated long pulse steady-state high plasma performance scenario and core-edge integration since the last IAEA in 2018. A discharge with a duration over 60 s with beta (P) similar to 2.0, beta (N) similar to 1.6, H-98y2 similar to 1.3 and an internal transport barrier on the electron temperature channel is obtained with multi-RF power heating and current drive. A higher beta (N) (beta (N) similar to 1.8, beta (p) similar to 2.0, H-98y2 similar to 1.3, n (e)/n (GW) similar to 0.75) with a duration of 20 s is achieved by using the modulated neutral beam and multi-RF power, where several normalized parameters are close or even higher than the phase III 1 GW scenario of CFETR steady-state. High-Z impurity accumulation in the plasma core is well controlled in a low level by using the on-axis ECH. Modeling shows that the strong diffusion of TEM turbulence in the central region prevents tungsten impurity from accumulating. More recently, EAST has demonstrated compatible core-edge integration discharges in the high beta (p) scenario: high confinement H-98y2 > 1.2 with high beta (P) similar to 2.5/beta (N) similar to 2.0 and f (bs) similar to 50% is sustained with reduced divertor heat flux at high density n (e)/n (GW) similar to 0.7 and moderate q (95) similar to 6.7. By combining active impurity seeding through radiative divertor feedback control and strike point splitting induced by resonant perturbation coil, the peak heat flux is reduced by 20-30% on the ITER-like tungsten divertor, here a mixture of 50% neon and 50% D-2 is applied.
资助项目	National MCF Energy RD Program[2019YFE03040000] ; National MCF Energy RD Program[2019YFE03020004] ; National Natural Science Foundation of China[11975274] ; National Natural Science Foundation of China[12005262] ; National Natural Science Foundation of China[11975276] ; Users with Excellence Program of Hefei Science Center CAS[2021HSC-UE018] ; Users with Excellence Program of Hefei Science Center CAS[2020HSC-UE011] ; External Cooperation Program of Chinese Academy of Sciences[116134KYSB20180035] ; Anhui Provincial Natural Science Foundation[2108085J06] ; Anhui Provincial Natural Science Foundation[2008085J04] ; Science Foundation of Institute of Plasma Physics, Chinese Academy of Sciences[DSJJ-2021-04] ; Department of Energy by Lawrence Livermore National Laboratory[DE-AC52-07NA27344] ; US Department of Energy, Office of Science, Office of Fusion Energy Sciences[DE-FC02-04ER54698] ; US Department of Energy, Office of Science, Office of Fusion Energy Sciences[DE-SC0010685]
WOS研究方向	Physics
语种	英语
出版者	IOP Publishing Ltd
WOS记录号	WOS:000787007000001
资助机构	National MCF Energy RD Program ; National Natural Science Foundation of China ; Users with Excellence Program of Hefei Science Center CAS ; External Cooperation Program of Chinese Academy of Sciences ; Anhui Provincial Natural Science Foundation ; Science Foundation of Institute of Plasma Physics, Chinese Academy of Sciences ; Department of Energy by Lawrence Livermore National Laboratory ; US Department of Energy, Office of Science, Office of Fusion Energy Sciences
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/131502]
专题	中国科学院合肥物质科学研究院
通讯作者	Zhang, B.
作者单位	1.Gen Atom, San Diego, CA USA 2.CEA, IRFM, F-13108 St Paul Les Durance, France 3.Princeton Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA 4.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China 5.Lawrence Livermore Natl Lab, Livermore, CA 94550 USA
推荐引用方式 GB/T 7714	Gong, X. Z.,Garofalo, A. M.,Huang, J.,et al. EAST steady-state long pulse H-mode with core-edge integration for CFETR[J]. NUCLEAR FUSION,2022,62.
APA	Gong, X. Z..,Garofalo, A. M..,Huang, J..,Qian, J. P..,Ekedah, A..,...&Li, J. G..(2022).EAST steady-state long pulse H-mode with core-edge integration for CFETR.NUCLEAR FUSION,62.
MLA	Gong, X. Z.,et al."EAST steady-state long pulse H-mode with core-edge integration for CFETR".NUCLEAR FUSION 62(2022).