7 citations · 13 across the 9 of their papers we have counts for
10 papers
Transport Impacts of Resonant Island Chains in Fusion Plasmas
Sidney D. V. Williams, Kevin Mitchell, Ethan Custodio +1
Magnetic field-line transport in magnetically confined plasmas is commonly modeled as diffusion through stochastic magnetic layers generated by resonant perturbations. However, exp…
Spacecraft heat shield study in the DIII-D tokamak
Dmitri M. Orlov, Evdokiya G. Kostadinova, Igor Bykov +33
We report a new experimental platform developed at the DIII-D National Fusion Facility to investigate carbon ablation and spallation under extreme heat fluxes relevant to fusion pl…
Assessment of 0-D L-H Power Threshold Scaling and Regression Stability in DIII-D with Applied 3D Magnetic Fields
Michael O Hanson, George R Tynan, Dmitri M Orlov
A database of 192 L-H transitions in DIII-D is used to assess the effects of applied three-dimensional (3D) magnetic fields on the H-mode power threshold and the stability of zero-…
Effect of Controlled Magnetic Island Bifurcation on Electron Diffusion
Jessica Eskew, D. M. Orlov, B. Andrew +7
Magnetic islands strongly influence cross-field electron transport in magnetized plasmas. In particular, bifurcations of the island topology modify the number and location of O-poi…
Plasma Confinement State Classification via FPP Relevant Microwave Diagnostics
Randall Clark, Vacslav Glukhov, Georgy Subbotin +4
We present a parsimonious and robust machine learning approach for identifying plasma confinement states in fusion power plants (FPPs) where reliable identification of the low-conf…
Understanding Plasma Turbulence Through Exact Coherent Structures
Sidney D. V. Williams, Matthew N. Gudorf, Dmitri M. Orlov
Plasma turbulence is a key challenge in understanding transport phenomena in magnetically confined plasmas. This work presents a novel approach using periodic orbit theory to analy…
Gyrokinetic simulations of the effects of magnetic islands on microturbulence in KSTAR
Xishuo Wei, Javier H Nicolau, Gyungjin Choi +8
Gyrokinetic simulations are utilized to study effects of magnetic islands on the ion temperature gradient (ITG) turbulence in the KSTAR tokamak with resonant magnetic perturbations…
Meteoroid Ablation within the Jovian Atmosphere: Implications on the Oxygen Delivery to the Gas Giant's Atmosphere
C. A. Mehta, D. M. Orlov, T. Feng +2
The detection of water molecules within the atmosphere of Jupiter, first by the Galileo Atmospheric Probe, and later by the Juno spacecraft, has given rise to the question of wheth…
Validation of NSFsim as a Grad-Shafranov Equilibrium Solver at DIII-D
Randall Clark, Maxim Nurgaliev, Eduard Khayrutdinov +3
Plasma shape is a significant factor that must be considered for any Fusion Pilot Plant (FPP) as it has significant consequences for plasma stability and core confinement. A new si…
Energetic Electron Transport in Magnetic Fields with Island Chains and Stochastic Regions
E G Kostadinova, D M Orlov, M Koepke +2
This paper investigates energetic electron transport in magnetized toroidal plasmas with magnetic fields characterized by island chains and regions of stochastic field lines produc…