Donald A Spong Theoretical/Computational Plasma Physicist Contact spongda@ornl.gov | 865.574.1304 All Publications Effect of the neutral beam injector operational regime on the Alfven eigenmode saturation phase in DIII-D plasma Study of Alfvén eigenmode stability in Quasi-Poloidal Stellarator (QPS) plasma using a Landau closure model Active Control of Alfvén Eigenmodes by Externally Applied 3D Magnetic Perturbations Analysis of the ECH effect on EPM/AE stability in Heliotron J plasma using a Landau closure model Simulation of the TAEs' saturation phase in the Large Helical Device: MHD burst... DIII-D research advancing the physics basis for optimizing the tokamak approach to fusion energy Theoretical study of the Alfven eigenmode stability in CFETR steady state discharges... A novel path to runaway electron mitigation via deuterium injection and current-driven MHD instability... Effects of negative triangularity shaping on energetic particle driven Alfvén eigenmodes in DIII-D... Theoretical analysis of the saturation phase of the 1/1 energetic-ion-driven resistive interchange mode... Nonlinear dynamics and transport driven by energetic particle instabilities using a gyro-Landau closure model *... Isotope dependence of beta-induced Alfvén eigenmode (BAE) and low frequency mode (LFM) stability in DIII-D... Composites and additive manufacturing for high-field coil supports for stellarators... Demonstration of reduced neoclassical energy transport in Wendelstein 7-X... SPATIALLY DEPENDENT SIMULATIONS AND MODEL VALIDATION OF RUNAWAY ELECTRON DISSIPATION VIA IMPURITY INJECTION IN DIII-D AND JET... NONLINEAR DYNAMICS AND STABILITY SURVEYS OF ENERGETIC PARTICLE INSTABILITIES... Study of the Alfven eigenmodes stability in CFQS plasma using a Landau closure model... 'BAAE' instabilities observed without fast ion drive... Progress in extending high poloidal beta scenarios on DIII-D towards a steady-state fusion reactor and impact of energetic particles Modeling of the ECCD injection effect on the Heliotron J and LHD plasma stability... Energetic particle transport and loss induced by helically-trapped energetic-ion-driven resistive interchange modes in the Large Helical Device Spatially dependent modeling and simulation of runaway electron mitigation in DIII-D... Global gyrokinetic particle simulations of microturbulence in W7-X and LHD stellarators... Runaway electron beam dynamics at low plasma density in DIII-D: energy distribution, current profile, and internal instability Effect of magnetic field ripple on parallel electron transport during microwave plasma heating in the Proto-MPEX linear plasm... Pagination Current page 1 Page 2 Page 3 … Next page ›› Last page Last » Key Links Curriculum Vitae Google Scholar ORCID LinkedIn Organizations Fusion and Fission Energy and Science Directorate Fusion Energy Division Burning Plasma Foundations Section Plasma Theory and Modeling Group
