Impact of the JET ITER-like wall on H-mode plasma fueling

doi:10.1088/1741-4326/aa69dd

	Impact of the JET ITER-like wall on H-mode plasma fueling
	Wiesen,S.2; Brezinsek,S.2; Wischmeier,M.3; De la Luna,E.4; Groth,M.5; Jaervinen,A. E.6; de la Cal,E.4; Losada,U.4; de Aguilera,A.M.4; Frassinetti,L.7
刊名	Nuclear Fusion
	2017-04-26
卷号	57
关键词	H-mode JET ITER-like wall integrated modelling pedestal fuelling plasma–wall interaction
ISSN号	0029-5515
DOI	10.1088/1741-4326/aa69dd
英文摘要	Abstract JET ITER-like wall (ILW) experiments show that the edge density evolution is strongly linked with the poloidal distribution of the ionization source. The fueling profile in the JET-ILW is more delocalized as compared to JET-C (JET with carbon-based plasma-facing components PFCs). Compared to JET-C the H-mode pedestal fueling cycle is dynamically influenced by a combination of plasma–wall interaction features, in particular: (1) edge-localized modes (ELMs) induced energetic particles are kinetically reflected on W divertor PFCs leading to distributed refueling away from the divertor depending on the divertor plasma configuration, (2) delayed molecular re-emission and outgassing of particles being trapped in W PFCs (bulk-W at the high field side and W-coated CFCs at the low field side) with different fuel content and (3) outgassing from Be co-deposits located on top of the high-field side baffle region shortly after the ELM. In view of the results of a set of well diagnosed series of JET-ILW type-I ELMy H-mode discharges with good statistics, the aforementioned effects are discussed in view of H-mode pedestal fueling capacity. The ongoing modelling activities with the focus on coupled core-edge plasma simulations and plasma–wall interaction are described and discussed also in view of possible code improvements required.
语种	英语
出版者	IOP Publishing
WOS记录号	IOP:0029-5515-57-6-AA69DD
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/42953]
专题	中国科学院合肥物质科学研究院
作者单位	1.Instituto de Plasmas e Fus?o Nuclear, IST, Univ. de Lisboa, P-1049-001, Lisboa, Portugal 2.Forschungszentrum Jülich GmbH, Institut für Energie- und Klimaforschung—Plasmaphysik, Partner of the Trilateral Euregio Cluster (TEC), 52425 Jülich, Germany 3.Max-Planck-Institut für Plasmaphysik, 85748 Garching bei München, Germany 4.Laboratorio Nacional de Fusion, CIEMAT, 28040, Madrid, Spain 5.Aalto University, Otakaari, Espoo, Finland 6.Lawrence Livermore National Laboratory, Livermore, CA 94550, United States of America 7.Association VR, Fusion Plasma Physics, KTH, SE-10044 Stockholm, Sweden 8.Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People’s Republic of China 9.CCFE, Culham Science Centre, Abingdon OX14 3DB, United Kingdom
推荐引用方式 GB/T 7714	Wiesen,S.,Brezinsek,S.,Wischmeier,M.,et al. Impact of the JET ITER-like wall on H-mode plasma fueling[J]. Nuclear Fusion,2017,57.
APA	Wiesen,S..,Brezinsek,S..,Wischmeier,M..,De la Luna,E..,Groth,M..,...&Sergienko,G..(2017).Impact of the JET ITER-like wall on H-mode plasma fueling.Nuclear Fusion,57.
MLA	Wiesen,S.,et al."Impact of the JET ITER-like wall on H-mode plasma fueling".Nuclear Fusion 57(2017).