The JOREK non-linear extended MHD code and applications to large-scale instabilities and their control in magnetically confined fusion plasmas

M Hoelzl, GTA Huijsmans, SJP Pamela… - Nuclear …, 2021 - iopscience.iop.org
JOREK is a massively parallel fully implicit non-linear extended magneto-hydrodynamic
(MHD) code for realistic tokamak X-point plasmas. It has become a widely used versatile …

[HTML][HTML] Deep convolutional neural networks for multi-scale time-series classification and application to tokamak disruption prediction using raw, high temporal …

RM Churchill, B Tobias, Y Zhu, DIII-D team - Physics of Plasmas, 2020 - pubs.aip.org
In this paper, we discuss recent advances in deep convolutional neural networks (CNNs) for
sequence learning, which allow identifying long-range, multi-scale phenomena in long …

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 …

Predictive JET current ramp-up modelling using QuaLiKiz-neural-network

A Ho, J Citrin, CD Challis, C Bourdelle… - Nuclear …, 2023 - iopscience.iop.org
Predictive JET current ramp-up modelling using QuaLiKiz-neural-network - IOPscience Skip to
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Overview of disruptions with JET-ILW

SN Gerasimov, P Abreu, G Artaserse, M Baruzzo… - Nuclear …, 2020 - iopscience.iop.org
The paper presents an analysis of disruptions occurring during JET-ILW plasma operations
covering the period from the start of ILW (ITER-like wall) operation up to completion of JET …

First predictive simulations for deuterium shattered pellet injection in ASDEX Upgrade

M Hoelzl, D Hu, E Nardon, GTA Huijsmans… - Physics of …, 2020 - pubs.aip.org
First simulations of deuterium shattered pellet injection into an ASDEX Upgrade H-Mode
plasma with the JOREK MHD code are presented. Resistivity is increased by one order of …

Electron heat flux and propagating fronts in plasma thermal quench via ambipolar transport

Y Zhang, J Li, XZ Tang - Physics of Plasmas, 2023 - pubs.aip.org
The thermal collapse of a nearly collisionless plasma interacting with a cooling spot, in
which the electron parallel heat flux plays an essential role, is both theoretically and …

Cooling flow regime of a plasma thermal quench

Y Zhang, J Li, XZ Tang - Europhysics Letters, 2023 - iopscience.iop.org
A large class of Laboratory, Space, and Astrophysical plasmas is nearly collisionless. When
a localized energy or particle sink, for example, in the form of a radiative cooling spot or a …

Collisionless plasma transport mechanisms in stochastic open magnetic field lines in tokamaks

MG Yoo, WX Wang, E Startsev, CH Ma, S Ethier… - Nuclear …, 2021 - iopscience.iop.org
The collisionless plasma transport in stochastic magnetic fields connecting to wall boundary
has been studied to understand the underlying mechanisms of thermal quench physics in …

Staged cooling of a fusion-grade plasma in a tokamak thermal quench

J Li, Y Zhang, XZ Tang - Nuclear Fusion, 2023 - iopscience.iop.org
In tokamak disruptions where the magnetic connection length becomes comparable to or
even shorter than the plasma mean-free-path, parallel transport can dominate the energy …