1 citations · 1 across the 6 of their papers we have counts for
6 papers
Mechanism of Ionization Avalanche in Tokamak Microwave Gas Breakdown
Jinwoo Gwak, Yeongsun Lee, Jeongwon Lee +5
Microwave breakdown driven by electron cyclotron (EC) waves provides a non-inductive route to plasma initiation in reactor-scale tokamaks. We introduce a three-dimensional Monte Ca…
Non-thermal electron cyclotron emission during runaway plateau in tokamak disruptions from a highly anisotropic dielectric tensor
Yeongsun Lee, Kikyung Park, Tchanou Park +3
During the runaway plateau phase in a tokamak, a cold background electron temperature of O(1 eV) forbids the onset of kinetic instability due to strong collisional damping. Neverth…
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…
Collision operator for electron runaway in cold weakly-ionized plasmas
Yeongsun Lee, Pavel Aleynikov, Peter de Vries +2
In cold weakly-ionized plasmas, Dreicer generation mechanism can be non-diffusive as demonstrated in [Y. Lee et. al. Phys. Rev. Lett. 133 17 175102 (2024)]. By expanding the previo…
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…
Enhancing Disruption Prediction through Bayesian Neural Network in KSTAR
Jinsu Kim, Jeongwon Lee, Jaemin Seo +3
Disruption in tokamak plasmas, stemming from various instabilities, poses a critical challenge, resulting in detrimental effects on the associated devices. Consequently, the proact…