4 papers
Ion shielding effects on the resonant boundary layer response to magnetic perturbations
Jace C. Waybright, Yeongsun Lee, Jong-Kyu Park
Fusion plasmas are highly sensitive to external magnetic perturbations which result in complex responses near a region known as the resonant layer. Past analytic descriptions of th…
Quantum Kinetics of Fast-Electron Inelastic Collisions in Partially-Ionized Plasmas
Yeongsun Lee, Pavel Aleynikov, Jong-Kyu Park
Fast electrons in partially ionized plasmas lose energy through inelastic collisions with bound electrons. While the mean energy loss is well described by stopping-power theory, fl…
Quantifying resonant drive in resistive perturbed tokamak equilibria
Matthew Pharr, Nikolas Logan, Carlos Paz-Soldan +1
Resonant drive in tokamaks is routinely quantified using a variety of different metrics that target different aspects of a resonant response to an external perturbation. Two of the…
Investigation of resonant layer response in electron viscosity regime
Yeongsun Lee, Jace Waybright, Jong-Kyu Park
We present a supplementary study of previous work in Waybright and Park [Phys. Plasmas 31, 022502 (2024)] which demonstrates a substantial effect of electron viscosity on the reson…