Comparison of the filament behaviour observed during type I ELMs in ASDEX upgrade and MAST

被引：13
|
作者：
Kirk, A. [1 ]
Herrmann, A. [2 ]
Ayed, B. [1 ]
Eich, T. [2 ,3 ]
Muller, H. W. [2 ]
Counsell, G. F. [1 ]
Lisgo, S. [1 ]
Price, M. [1 ]
Schmid, A. [2 ]
Tallents, S. [1 ,3 ]
Wilson, H. [4 ]
机构：
[1] UKAEA Euratom Fus Assoc, Culharn Sci Ctr, Abingdon OX14 3DB, Oxon, England
[2] EURATOM, Max Planck Inst Plasmaphys, Garching, Germany
[3] Univ London, Technol & Med, Imperial Coll Sch, London SW7 2BZ, England
[4] Univ York, York YO10 5DD, N Yorkshire, England
来源：
11TH IAEA TECHNICAL MEETING ON H-MODE PHYSICS AND TRANSPORT BARRIERS | 2008年 / 123卷
基金：
英国工程与自然科学研究理事会;
关键词：
D O I：
10.1088/1742-6596/123/1/012012
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：
A study of the evolution of the filaments observed during Type I ELMs on ASDEX Upgrade and MAST is presented. The filaments start off rotating toroidally/poloidally with velocities close to that of the pedestal. This velocity then decreases as the filaments propagate radially. On both devices the ion saturation current e-folding lengths of the filaments show a weak, if any, dependence on the size of the ELM (Delta W-ELM/W-ped). On MAST the measured radial velocities of the filaments also show at most a weak dependence on Delta W-ELM/W-ped.
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页数：10
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