13 citations · 44 across the 9 of their papers we have counts for
9 papers
Machine-learning surrogate models for nonlinear energetic-particle transport predictions in ITER
Yashika Ghai, Donald A. Spong, Jacobo Varela +1
Fast and accurate prediction of energetic-particle transport driven by Alfvén eigenmode (AE) instabilities is essential for integrated modeling workflows used in the design and opt…
Towards Data-Efficient Cross-Device Generalization of Grad-Shafranov Equilibria via Transfer Learning Neural Operator
Jay Phil Yoo, William Howes, Yashika Ghai +3
Real-time reconstruction of magnetohydrodynamic equilibria is essential for plasma shaping, stability assessment and feedback control in magnetic confinement fusion. However, Grad-…
Runaway electron interactions with whistler waves in tokamak plasmas: energy-dependent transport scaling
Yashika Ghai, D. Del-Castillo-Negrete, D. A. Spong +1
Resonant interactions between high energy runaway electrons (REs) and whistler waves are a promising mechanism for RE mitigation in tokamak plasmas. While prior studies have largel…
Exploring the Capabilities of the Frontier Large Language Models for Nuclear Energy Research
Ahmed Almeldein, Mohammed Alnaggar, Rick Archibald +47
The AI for Nuclear Energy workshop at Oak Ridge National Laboratory evaluated the potential of Large Language Models (LLMs) to accelerate fusion and fission research. Fourteen inte…
Effect of the neutral beam injector operational regime on the Alfven eigenmode saturation phase in DIII-D plasma
J Varela, D A Spong, L Garcia +11
The aim of this study is to analyze the effect of the neutral beam injector (NBI) operation regime on the saturation phase of the Alfven Eigenmodes (AEs) in DIII-D plasma. The anal…
Analysis of the ECH effect on the EPM/AEs stability in Heliotron J plasma using a Landau closure model
J. Varela, K. Nagasaki, S. Kobayashi +9
The aim of the present study is to analyze the effect of the electron cyclotron heating (ECH) on the linear stability of Alfven Eigenmodes (AE) and energetic particle modes (EPM) t…
Simulation of the TAEs saturation phase in Large Helical Device device: MHD burst
J. Varela, D. A. Spong, Y. Todo +4
The aim of the present study is to analyze the saturation regime of the Toroidal Alfven Eigenmodes (TAE) in the LHD plasma, particularly the MHD burst. The linear and nonlinear evo…
Theoretical study of the Alfven Eigenmode stability in CFETR steady state discharges
J. Varela, J. Huang, D. A. Spong +6
The aim of this study is to analyze the stability of Alfven Eigenmodes (AE) in the China Fusion Engineering Test Reactor (CFETR) plasma for steady state operations. The analysis is…
Theoretical analysis of the saturation phase of the energetic-ion-driven resistive interchange mode
J. Varela, D. A. Spong, L. Garcia +4
The aim of the present study is to analyze the saturation regime of the energetic-ion-driven resistive interchange mode (EIC) in the LHD plasma. A set of non linear simulations are…