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Impact of hydrogen fuelling on confinement properties in radiative improved mode

D Kalupin, P Dumortier, A Messiaen, M Z Tokar, B Unterberg, Geert Verdoolaege, G Van Wassenhove, R Weynants2003年Plasma Physics and Controlled FusionIF 2.2出版社

The radiative improved (RI) mode at TEXTOR is a high confinement regime, which is obtained by the seeding of neon into deuterium plasmas. Recent experiments were aimed to study the influence of external gas fuelling on the confinement properties of the RI mode. In particular, it was found that a hydrogen puff into such plasmas leads to lower confinement compared with the discharges fuelled with the same amount of deuterium gas. This paper attempts to explain the reduction of confinement in RI plasmas with an external hydrogen puff and its relation to the level of impurity concentration, which is a critical parameter for RI mode confinement.

日本語訳

TEXTORにおけるRI(放射改善)モードは、重水素プラズマへのネオン入射によって得られる高閉じ込めモードである。最近の実験は、RIモードの閉じ込め特性に対する外部ガス入射の影響を調べることを目的とした。特に、このようなプラズマへの水素入射は、同量の重水素ガスを入射した場合と比較して、閉じ込めの低下をもたらすことが見出された。本論文は、外部からの水素入射を伴うRIプラズマにおける閉じ込めの低下と、RIモード閉じ込めの臨界パラメータである不純物濃度レベルとの関係を説明することを試みるものである。

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textor中精度(概要文一致)

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