Effects of type-I edge-localized modes on transport in ASDEX upgrade

被引:22
作者
Suttrop, W [1 ]
Gehre, O
Fuchs, JC
Reimerdes, H
Schneider, W
Schweinzer, J
机构
[1] EURATOM Assoc, Max Planck Inst Plasmaphys, D-85748 Garching, Germany
[2] Ecole Polytech Fed Lausanne, EURATOM Assoc, Ctr Rech Phys Plasmas, Confederat Suisse, CH-1015 Lausanne, Switzerland
关键词
D O I
10.1088/0741-3335/40/5/040
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
Particle and energy losses due to type-I edge-localized modes (ELMs) and the effect of H-mode pedestal parameters on global confinement are studied for H-Mode discharges in ASDEX Upgrade. ELM frequency as well as particle and heat losses during ELMs are strongly affected by gas puffing, impurity injection, variation of plasma current and heating power. However the average power loss due to ELMs P-ELM = f(ELM)Delta W shows much less variation, and cannot account for the variations of stored energy encountered, e.g. in a plasma current scan. A good correlation between pedestal pressure and stored energy is found for type-I ELMy discharges.
引用
收藏
页码:771 / 774
页数:4
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