Overview of the SPARC physics basis towards the exploration of burning-plasma regimes in high-field, compact tokamaks

P Rodriguez-Fernandez, AJ Creely… - Nuclear …, 2022 - iopscience.iop.org
The SPARC tokamak project, currently in engineering design, aims to achieve breakeven
and burning plasma conditions in a compact device, thanks to new developments in high …

Nonlinear gyrokinetic predictions of SPARC burning plasma profiles enabled by surrogate modeling

P Rodriguez-Fernandez, NT Howard, J Candy - Nuclear Fusion, 2022 - iopscience.iop.org
Multi-channel, nonlinear predictions of core temperature and density profiles are performed
for the SPARC tokamak (Creely et al 2020 J. Plasma Phys. 86 865860502) accounting for …

Predictions of core plasma performance for the SPARC tokamak

P Rodriguez-Fernandez, NT Howard… - Journal of Plasma …, 2020 - cambridge.org
SPARC is designed to be a high-field, medium-size tokamak aimed at achieving net energy
gain with ion cyclotron range-of-frequencies (ICRF) as its primary auxiliary heating …

Prospects of core–edge integrated no-ELM and small-ELM scenarios for future fusion devices

E Viezzer, ME Austin, M Bernert, KH Burrell… - Nuclear Materials and …, 2023 - Elsevier
One of our grand challenges towards fusion energy is the achievement of a high-
performance plasma core coupled to a boundary solution. The high confinement mode (H …

Physics basis for the ICRF system of the SPARC tokamak

Y Lin, JC Wright, SJ Wukitch - Journal of Plasma Physics, 2020 - cambridge.org
Ion cyclotron range of frequencies (ICRF) heating will be the sole auxiliary heating method
on SPARC for both full-field (Bt0~ 12 T) D–T operation and reduced field (Bt0~ 8 T) D–D …

Validation of IMEP on Alcator C-Mod and JET-ILW ELMy H-mode plasmas

T Luda, C Angioni, MG Dunne, E Fable… - Plasma Physics and …, 2023 - iopscience.iop.org
The recently developed integrated model based on engineering parameters (IMEP)(Luda et
al 2020 Nucl. Fusion 61 126048; Luda et al 2021 Nucl. Fusion 60 036023), so far validated …

Impact of ionization and transport on pedestal density structure in DIII-D and Alcator C-Mod

S Mordijck, RA Chaban, R Reksoatmodjo… - Nuclear …, 2024 - iopscience.iop.org
This paper investigates the role of ionization on the pedestal structure using both
measurements and modeling for H-mode plasmas on DIII-D and Alcator C-Mod to enhance …

Enhanced pedestal transport driven by edge collisionality on Alcator C-Mod and its role in regulating H-mode pedestal gradients

MA Miller, JW Hughes, AM Rosenthal, S Mordijck… - Nuclear …, 2025 - iopscience.iop.org
Experimental measurements of plasma and neutral profiles across the pedestal are used in
conjunction with 2D edge modeling to examine pedestal stiffness in Alcator C-Mod H-mode …

[HTML][HTML] Core performance predictions in projected SPARC first-campaign plasmas with nonlinear CGYRO

P Rodriguez-Fernandez, NT Howard, A Saltzman… - Physics of …, 2024 - pubs.aip.org
This work characterizes the core transport physics of SPARC early-campaign plasmas using
the PORTALS-CGYRO framework. Empirical modeling of SPARC plasmas with L-mode …

Kinetic-ballooning-limited pedestals in spherical tokamak plasmas

JF Parisi, W Guttenfelder, AO Nelson, R Gaur… - Nuclear …, 2024 - iopscience.iop.org
A theoretical model is presented that for the first time matches experimental measurements
of the pedestal width-height Diallo scaling in the low-aspect-ratio high-β tokamak NSTX …