Inter-ELM Ion Transport in the ASDEX Upgrade Far Scrape-Off Layer

被引：3
|
作者：
Kocan, M. [1 ,2 ]
Allan, S. Y. [3 ]
Carpentier-Chouchana, S. [2 ]
de Marne, P. [1 ]
Elmore, S. [3 ]
Gunn, J. P. [4 ]
Herrmann, A. [1 ]
Kirk, A. [3 ]
Kubic, M. [4 ]
Lunt, T. [1 ]
Mueller, H. W. [1 ]
Pitts, R. A. [2 ]
Rohde, V. [1 ]
机构：
[1] Max Planck Inst Plasma Phys, EURATOM Assoc, D-85748 Garching, Germany
[2] ITER Org, F-13067 St Paul Les Durance, France
[3] Culham Ctr Fus Energy, Abingdon OX14 3DB, Oxon, England
[4] CEA, IRFM, F-13108 St Paul Les Durance, France
来源：
CONTRIBUTIONS TO PLASMA PHYSICS | 2013年 / 53卷 / 01期
关键词：
Scrape-off layer; inter-ELM ion transport; filament-wall interaction; retarding field analyzer; ASDEX Upgrade; DIII-D TOKAMAK; BOUNDARY;
D O I：
10.1002/ctpp.201310004
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
New measurements of ion transport in the scrape-off layer (SOL) during inter-ELM periods are obtained from a retarding field analyzer (RFA) in the ASDEX Upgrade tokamak. The ion current density measured in the far SOL features large-amplitude bursts associated with turbulent plasma filaments passing the RFA. These filaments convect plasma to the wall with larger density than the background plasma density. The ions in the filament also have higher impact energies than the background ion impact energies. These observations indicate that a filament-wall interaction can lead to erosion of the first wall in the burning plasma tokamaks such as ITER.
引用
收藏
页码：22 / 26
页数：5
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