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

W Suttrop, O Gehre, J C Fuchs, H Reimerdes, W Schneider, J Schweinzer, the ASDEX Upgrade team1998年Plasma Physics and Controlled FusionIF 2.2出版社

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 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.

日本語訳

タイプI周辺局在モード(ELM)による粒子およびエネルギー損失と、大域的閉じ込めに対するHモード・ペデスタルパラメータの影響について、ASDEX UpgradeにおけるHモード放電を対象に研究を行った。ELM周波数ならびにELM中の粒子および熱損失は、ガス入射、不純物入射、プラズマ電流の変化、加熱パワーによって強く影響を受ける。しかしながら、ELMによる平均的な電力損失はそれほど変化せず、例えばプラズマ電流スキャンにおいて観測される蓄積エネルギーの変化を説明することはできない。タイプI ELMy放電においては、ペデスタル圧力と蓄積エネルギーの間に良好な相関関係が見出された。

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asdex-upgrade高精度(タイトル一致)

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ASDEXEdge localized modeASDEX Upgrade
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