MHD stability and disruptions in the SPARC tokamak

R Sweeney, AJ Creely, J Doody, T Fülöp… - Journal of Plasma …, 2020 - cambridge.org
SPARC is being designed to operate with a normalized beta of that rises linearly with a
change in the plasma current. Massive material injection is planned to reduce the disruption …

Simultaneous access to high normalized density, current, pressure, and confinement in strongly-shaped diverted negative triangularity plasmas

C Paz-Soldan, C Chrystal, P Lunia, AO Nelson… - Nuclear …, 2024 - iopscience.iop.org
Strongly-shaped diverted negative triangularity (NT) plasmas in the DIII-D tokamak
demonstrate simultaneous access to high normalized density, current, pressure, and …

Predicting operational windows of ELMs suppression by resonant magnetic perturbations in the DIII-D and KSTAR tokamaks

QM Hu, R Nazikian, NC Logan, JK Park… - Physics of …, 2021 - pubs.aip.org
ABSTRACT A newly developed plasma response model, combining the nonlinear two-fluid
MHD code TM1 and toroidal MHD code GPEC run in ideal mode, quantitatively predicts the …

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 …

Nonlinear two-fluid modeling of plasma response to RMPs for the ELM control in the ITER baseline

QM Hu, JK Park, NC Logan, SM Yang… - Nuclear …, 2021 - iopscience.iop.org
Numerical modeling, combining the toroidal ideal MHD code GPEC and the nonlinear two-
fluid MHD code TM1, was used for comprehensive studies of the plasma response to …

Identification of multiple eigenmode growth rates towards real time detection in DIII-D and KSTAR tokamak plasmas

T Liu, ZR Wang, MD Boyer, S Munaretto… - Nuclear …, 2021 - iopscience.iop.org
The successful application of three-dimensional (3D) magnetohydrodynamic (MHD)
spectroscopy enables us to identify the multi-mode eigenvalues in DIII-D and KSTAR …

Identification of multiple eigenmode growth rates in DIII-D and EAST tokamak plasmas

ZR Wang, NC Logan, S Munaretto, YQ Liu… - Nuclear …, 2019 - iopscience.iop.org
The successful application of three-dimensional (3D) magnetohydrodynamic (MHD)
spectroscopy in the stable DIII-D and EAST plasmas enables to directly extract the multi …

A new criterion for controlling edge localized modes based on a multi-mode plasma response

S Gu, B Wan, Y Sun, N Chu, YQ Liu, T Shi… - Nuclear …, 2019 - iopscience.iop.org
A new technique for multi-mode plasma response extraction is presented, as well as a new
criterion to identify modes associated with edge localized mode (ELM) control. This …

Effects of edge-localized electron cyclotron current drive on edge-localized mode suppression by resonant magnetic perturbations in DIII-D

QM Hu, NC Logan, Q Yu, A Bortolon - Nuclear Fusion, 2024 - iopscience.iop.org
According to recent DIII-D experiments (Logan et al 2024 Nucl. Fusion64 014003), injecting
edge localized electron cyclotron current drive (ECCD) in the counter-plasma-current …

Real time detection of multiple stable MHD eigenmode growth rates towards kink/tearing modes avoidance in DIII-D tokamak plasmas

T Liu, S Munaretto, NC Logan, ZR Wang… - Nuclear …, 2023 - iopscience.iop.org
Real time detection of time evolving growth rates of multiple stable magnetohydrodynamic
(MHD) eigenmodes has been achieved in DIII-D tokamak experiments via multi-mode three …