Experimental confirmation of efficient island divertor operation and successful neoclassical transport optimization in Wendelstein 7-X

doi:10.1088/1741-4326/ac2cf5

	Experimental confirmation of efficient island divertor operation and successful neoclassical transport optimization in Wendelstein 7-X
	Pedersen, Thomas Sunn 2,3,4; Abramovic, I 5; Agostinetti, P.6; Torres, M. Agredano 2,3; Aekaeslompolo, S.2,3; Belloso, J. Alcuson 2,3; Aleynikov, P.2,3; Aleynikova, K.2,3; Alhashimi, M.2,3; Ali, A.2,3
刊名	NUCLEAR FUSION
	2022-04-01
卷号	62
关键词	magnetic confinement stellarator Wendelstein 7-X divertor detachment neoclassical optimization
ISSN号	0029-5515
DOI	10.1088/1741-4326/ac2cf5
通讯作者	Pedersen, Thomas Sunn(Thomas.sunn.pedersen@ipp.mpg.de)
英文摘要	We present recent highlights from the most recent operation phases of Wendelstein 7-X, the most advanced stellarator in the world. Stable detachment with good particle exhaust, low impurity content, and energy confinement times exceeding 100 ms, have been maintained for tens of seconds. Pellet fueling allows for plasma phases with reduced ion-temperature-gradient turbulence, and during such phases, the overall confinement is so good (energy confinement times often exceeding 200 ms) that the attained density and temperature profiles would not have been possible in less optimized devices, since they would have had neoclassical transport losses exceeding the heating applied in W7-X. This provides proof that the reduction of neoclassical transport through magnetic field optimization is successful. W7-X plasmas generally show good impurity screening and high plasma purity, but there is evidence of longer impurity confinement times during turbulence-suppressed phases.
资助项目	Euratom research and training programme
WOS研究方向	Physics
语种	英语
出版者	IOP Publishing Ltd
WOS记录号	WOS:000788784200001
资助机构	Euratom research and training programme
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/131515]
专题	中国科学院合肥物质科学研究院
通讯作者	Pedersen, Thomas Sunn
作者单位	1.Aalto Univ, Espoo 02150, Finland 2.Max Planck Inst Plasma Phys, Boltzmannstr 2, D-85748 Garching, Germany 3.Max Planck Inst Plasma Phys, Greifswald, Germany 4.Univ Greifswald, Greifswald, Germany 5.MIT, 77 Massachusetts Ave, Cambridge, MA 02139 USA 6.Consorzio RFX, Corso Stati Uniti, I-435127 Padua, Italy 7.Auburn Univ, Auburn, AL 36849 USA 8.CIEMAT, Ave Complutense 40, Madrid 28040, Spain 9.Ctr Energy Res, Konkoly Thege Ut 29-33, H-1121 Budapest, Hungary 10.CEA Cadarache, F-13115 St Paul Les Durance, France
推荐引用方式 GB/T 7714	Pedersen, Thomas Sunn,Abramovic, I,Agostinetti, P.,et al. Experimental confirmation of efficient island divertor operation and successful neoclassical transport optimization in Wendelstein 7-X[J]. NUCLEAR FUSION,2022,62.
APA	Pedersen, Thomas Sunn.,Abramovic, I.,Agostinetti, P..,Torres, M. Agredano.,Aekaeslompolo, S..,...&Zsuga, L..(2022).Experimental confirmation of efficient island divertor operation and successful neoclassical transport optimization in Wendelstein 7-X.NUCLEAR FUSION,62.
MLA	Pedersen, Thomas Sunn,et al."Experimental confirmation of efficient island divertor operation and successful neoclassical transport optimization in Wendelstein 7-X".NUCLEAR FUSION 62(2022).