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physics.plasm-ph2025
Characterizing Flux-Surface Shapes in Tokamaks and Quasi-Symmetric Stellarators
M. J. Gerard, M. J. Pueschel, S. Stewart +2
Modern stellarator designs routinely attain high levels of magnetic-field quasi-symmetry through flux-surface shaping. Here, we examine different methods for characterizing stellar…
physics.plasm-ph2024
On the effect of flux-surface shaping on trapped-electron modes in quasi-helically symmetric stellarators
M. J. Gerard, M. J. Pueschel, B. Geiger +5
Using a novel optimization procedure it has been shown that the Helically Symmetric eXperiment (HSX) stellarator can be optimized for reduced trapped-electron-mode (TEM) instabilit…