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On the effects of magnetic perturbations on fast ion losses studied at TEXTOR

M Rack, Y Liang, P Denner, J Pearson, Y Yang, L Zeng, the TEXTOR Team2014年Plasma Physics and Controlled FusionIF 2.2出版社

One criterion for the ignition of a fusion plasma is sufficient fast ion confinement. A key aspect in that context is the maintainability of good fast ion confinement in the presence of non-axisymmetric fields, such as those found in stellarators and during the application of resonant magnetic perturbations (RMPs) in tokamaks. This paper focuses on the influence of RMPs on the fast ion losses, studied at the Tokamak experiment for technology-oriented research (TEXTOR), a medium-sized device. TEXTOR is equipped with a flexible perturbation coil system, the dynamic ergodic divertor, allowing for the application of static or rotating perturbation fields. A rotating directional probe is used for the radially resolved fast ion loss measurements. The results achieved are presented and discussed for the poloidal/toroidal perturbation modes m/n = 3/1 and 6/2, with static and rotating fields.

日本語訳

核融合プラズマの点火条件の一つは、十分な高速イオン閉じ込めである。その文脈における重要な側面は、非軸対称磁場の存在下での優れた高速イオン閉じ込めの維持可能性であり、そのような磁場は、ステラレーターや、トカマクにおける共鳴磁場摂動(RMP)の印加時に見られる。本論文は、中規模装置である技術指向研究用トカマク(TEXTOR)において研究された、RMPが高速イオン損失に及ぼす影響に焦点を当てる。TEXTORは、柔軟な摂動コイルシステムであるダイナミック・エルゴディック・ダイバータを備えており、静的または回転する摂動磁場の印加が可能である。回転方向性プローブを用いて、高速イオン損失の径方向分解測定が行われた。得られた結果は、ポロイダル/トロイダルモード数m/n=3/1および6/2について、静的および回転磁場の場合に関して提示され、考察される。

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Fusion Advanced Studies TorusEnergetic ionMagnetic perturbationTEXTORIon loss
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