The 3D Physics Team studies complex three-dimensional (3D) plasma phenomena in both tokamaks and stellarators, focusing on how non-axisymmetric magnetic fields affect plasma equilibrium, stability, and transport. Our research addresses key physics issues relevant to advanced magnetic confinement fusion devices.
We investigate intrinsic error fields and their impact on plasma performance, and develop optimized 3D coil configurations, including coil currents and positioning, to control MHD activity and improve confinement. In addition, we analyze the plasma response to externally applied 3D magnetic fields, such as resonant magnetic perturbations (RMPs), with emphasis on field penetration, magnetic island formation, and transport effects.
Advanced 3D MHD simulation codes, including M3D-C1, are used to study RMP response, neoclassical tearing modes (NTMs), and self-consistent equilibria. Through combined modeling and experimental analysis, we aim to provide physics-based guidance for the design and operation of future fusion devices.
Kinetic Equilibrium & Transport Analysis for QSMP to RMP scenario in KSTAR
Diagnosing intrinsic error fields and applying optimized 3D coil currents/position to improve plasma performance
Analysis of magnetic island formation by external magnetic field with M3D-C1