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- W1984085814 endingPage "114016" @default.
- W1984085814 startingPage "114016" @default.
- W1984085814 abstract "Large edge localized modes (ELMs) typically accompany good H-mode confinement in fusion devices, but can present problems for plasma facing components because of high transient heat loads. Here the range of techniques for ELM control deployed in fusion devices is reviewed. Two strategies in the ITER baseline design are emphasized: rapid ELM triggering and peak heat flux control via pellet injection, and the use of magnetic perturbations to suppress or mitigate ELMs. While both of these techniques are moderately well developed, with reasonable physical bases for projecting to ITER, differing observations between multiple devices are also discussed to highlight the needed community R&D. In addition, recent progress in ELM-free regimes, namely quiescent H-mode, I-mode, and enhanced pedestal H-mode is reviewed, and open questions for extrapolability are discussed. Finally progress and outstanding issues in alternate ELM control techniques are reviewed: supersonic molecular beam injection, edge electron cyclotron heating, lower hybrid heating and/or current drive, controlled periodic jogs of the vertical centroid position, ELM pace-making via periodic magnetic perturbations, ELM elimination with lithium wall conditioning, and naturally occurring small ELM regimes." @default.
- W1984085814 created "2016-06-24" @default.
- W1984085814 creator A5045577349 @default.
- W1984085814 date "2014-11-01" @default.
- W1984085814 modified "2023-09-25" @default.
- W1984085814 title "Enhanced confinement scenarios without large edge localized modes in tokamaks: control, performance, and extrapolability issues for ITER" @default.
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