Collisionless zonal-flow dynamics in quasisymmetric stellarators
Sign Up to like & getrecommendations! Published in 2024 at "Journal of Plasma Physics"
DOI: 10.1017/s0022377824001739
Abstract: The linear collisionless plasma response to a zonal-density perturbation in quasisymmetric stellarators is studied, including the geodesic-acoustic-mode oscillations and the Rosenbluth–Hinton residual flow. While the geodesic-acoustic-mode oscillations in quasiaxisymmetric configurations are similar to tokamaks, they… read more here.
Keywords: rosenbluth hinton; collisionless zonal; quasisymmetric stellarators; zonal flow ... See more keywords
A Grad-Shafranov model for compact quasisymmetric stellarators
Sign Up to like & getrecommendations! Published in 2025 at "Physics of Plasmas"
DOI: 10.1063/5.0258308
Abstract: A Grad-Shafranov equation (GSE) valid for compact quasisymmetric stellarators is derived by an asymptotic expansion around a vacuum field carried to first order. We obtain an equation for the existence of flux surfaces leading up… read more here.
Keywords: equation; compact quasisymmetric; grad shafranov; existence ... See more keywords