The effect of plasma shape and neutral beam mix on the rotation threshold for RMP-ELM suppression

C Paz-Soldan, R Nazikian, L Cui, BC Lyons… - Nuclear …, 2019 - iopscience.iop.org
Varying the neutral beam injection (NBI) mix reveals a clear pedestal-top rotation threshold
for edge localized mode (ELM) suppression by resonant magnetic perturbations (RMPs) …

Gyrokinetic study of collisional resonant magnetic perturbation (RMP)-driven plasma density and heat transport in tokamak edge plasma using a …

R Hager, CS Chang, NM Ferraro, R Nazikian - Nuclear fusion, 2019 - iopscience.iop.org
The total-f gyrokinetic particle-in-cell code XGC is applied to study various aspects of
collisional transport in the tokamak edge pedestal in the presence of resonant magnetic …

Deep learning based surrogate models for first-principles global simulations of fusion plasmas

G Dong, X Wei, J Bao, G Brochard, Z Lin… - Nuclear Fusion, 2021 - iopscience.iop.org
The accurate identification and control of plasma instabilities is important for successful
fusion experiments. First-principle simulations that can provide physics-based instability …

[HTML][HTML] Gyrokinetic understanding of the edge pedestal transport driven by resonant magnetic perturbations in a realistic divertor geometry

R Hager, CS Chang, NM Ferraro, R Nazikian - Physics of Plasmas, 2020 - pubs.aip.org
Self-consistent simulations of neoclassical and electrostatic turbulent transport in a DIII-D H-
mode edge plasma under resonant magnetic perturbations (RMPs) have been performed …

Influence of triangularity on the plasma response to resonant magnetic perturbations

S Gu, C Paz-Soldan, YQ Liu, Y Sun, BC Lyons… - Nuclear …, 2022 - iopscience.iop.org
The effect of the axisymmetric plasma shape on the non-axisymmetric plasma response to
resonant magnetic perturbations is investigated in experiment and modeling for the DIII-D …

Physics basis for design of 3D coils in tokamaks

NC Logan, C Zhu, JK Park, SM Yang, Q Hu - Nuclear Fusion, 2021 - iopscience.iop.org
Recent progress in 3D tokamak modeling is now leveraged to create a conceptual design of
new external 3D field coils for the DIII-D tokamak. In this work generalized perturbed …

Machine learning-enhanced model-based scenario optimization for DIII-D

S Morosohk, B Leard, T Rafiq, E Schuster - Nuclear Fusion, 2024 - iopscience.iop.org
Scenario development in tokamaks is an open area of investigation that can be approached
in a variety of different ways. Experimental trial and error has been the traditional method …

Controlling the size of non-axisymmetric magnetic footprints using resonant magnetic perturbations

S Munaretto, DM Orlov, C Paz-Soldan, I Bykov… - Nuclear …, 2021 - iopscience.iop.org
The structure of the non-axisymmetric heat load distribution at the divertor plates is
determined not only by the toroidal but also from the poloidal spectrum of non-axisymmetric …

Influence of up-down asymmetry in plasma shape on RMP response

Y Liu, BC Lyons, S Gu, A Kirk, L Li… - Plasma Physics and …, 2021 - iopscience.iop.org
Shaping effect on the plasma response to the externally applied resonant magnetic
perturbation field is investigated for both DIII-D and MAST experiments, utilizing toroidal …

Enhanced plasma profile estimation and control in tokamaks via machine learning

S Morosohk - 2024 - search.proquest.com
The tokamak concept is currently one of the most promising avenues to achieve energy
generation through nuclear fusion, a feat that would enable the world to produce nearly …