Avoiding fusion plasma tearing instability with deep reinforcement learning
For stable and efficient fusion energy production using a tokamak reactor, it is essential to
maintain a high-pressure hydrogenic plasma without plasma disruption. Therefore, it is …
maintain a high-pressure hydrogenic plasma without plasma disruption. Therefore, it is …
[HTML][HTML] Novel aspects of plasma control in ITER
ITER plasma control design solutions and performance requirements are strongly driven by
its nuclear mission, aggressive commissioning constraints, and limited number of …
its nuclear mission, aggressive commissioning constraints, and limited number of …
Direct preemptive stabilization of neoclassical tearing modes by electron cyclotron current drive in the DIII-D low-torque ITER baseline scenario
We report the first preemptive direct stabilization of $ m, n= 2, 1$ neoclassical tearing modes
(NTMs) in DIII-D low-torque ITER baseline scenario plasmas by electron cyclotron waves …
(NTMs) in DIII-D low-torque ITER baseline scenario plasmas by electron cyclotron waves …
Multimodal prediction of tearing instabilities in a tokamak
Tokamak is a torus-shaped nuclear fusion device that uses magnetic fields to confine fusion
fuel in the form of plasma. Tearing instability in plasma is a major issue in which the …
fuel in the form of plasma. Tearing instability in plasma is a major issue in which the …
[HTML][HTML] Resolving ECRH deposition broadening due to edge turbulence in DIII-D
Microwave heat pulse propagation experiments have demonstrated a correlation between
millimeter-scale turbulence and deposition profile broadening of electron cyclotron (EC) …
millimeter-scale turbulence and deposition profile broadening of electron cyclotron (EC) …
Electron cyclotron power management for control of neoclassical tearing modes in the ITER baseline scenario
FM Poli, ED Fredrickson, MA Henderson, SH Kim… - Nuclear …, 2017 - iopscience.iop.org
Time-dependent simulations are used to evolve plasma discharges in combination with a
modified Rutherford equation for calculation of neoclassical tearing mode (NTM) stability in …
modified Rutherford equation for calculation of neoclassical tearing mode (NTM) stability in …
Integrated magnetic and kinetic control of advanced tokamak plasmas on DIII-D based on data-driven models
D Moreau, ML Walker, JR Ferron, F Liu… - Nuclear …, 2013 - iopscience.iop.org
The first real-time profile control experiments integrating magnetic and kinetic variables were
performed on DIII-D in view of regulating and extrapolating advanced tokamak scenarios to …
performed on DIII-D in view of regulating and extrapolating advanced tokamak scenarios to …
DIII-D research towards resolving key issues for ITER and steady-state tokamaks
DN Hill, DIII-D Team - Nuclear Fusion, 2013 - iopscience.iop.org
The DIII-D research program is addressing key ITER research needs and develo** the
physics basis for future steady-state tokamaks. Pellet pacing edge-localized mode (ELM) …
physics basis for future steady-state tokamaks. Pellet pacing edge-localized mode (ELM) …
Use of differential plasma rotation to prevent disruptive tearing mode onset from 3-wave coupling
Plasma differential rotation is found to be capable of preventing disruptive neoclassical
tearing modes (NTMs) seeded by nonlinear three-wave coupling. As tearing modes degrade …
tearing modes (NTMs) seeded by nonlinear three-wave coupling. As tearing modes degrade …
MHD mode tracking using high-speed cameras and deep learning
We present a new algorithm to track the amplitude and phase of rotating
magnetohydrodynamic (MHD) modes in tokamak plasmas using high speed imaging …
magnetohydrodynamic (MHD) modes in tokamak plasmas using high speed imaging …