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physics.plasm-ph2025
Turbulent Transport-Limited Pedestals in Tokamaks
J. F. Parisi, D. R. Hatch, P. Y. Li +5
H-mode operation of tokamak fusion plasmas free of dangerous Type 1 edge-localized-modes (ELMs) requires a non-ELM mechanism for saturating the edge pedestal growth. One possible m…
physics.plasm-ph2025
Prediction of ELM-free Operation in Spherical Tokamaks With High Plasma Squareness
J. F. Parisi, J. W. Berkery, K. Imada +5
We predict that high plasma squareness in spherical tokamaks (STs) could result in edge-localized-mode (ELM)-free H-mode. The effect of squareness on gyrokinetic and peeling-balloo…
physics.plasm-ph2024
First Access to ELM-free Negative Triangularity at Low Aspect Ratio
A. O. Nelson, C. Vincent, H. Anand +12
A plasma scenario with negative triangularity (NT) shaping is achieved on MAST-U for the first time. While edge localized modes (ELMs) are eventually suppressed as the triangularit…