Disruption runaway electron generation and mitigation in the Spherical Tokamak for Energy Production (STEP)
Abstract Generation of Runaway Electrons (REs) during plasma disruptions is of great
concern for ITER and future reactors based on the tokamak concept. Unmitigated RE …
concern for ITER and future reactors based on the tokamak concept. Unmitigated RE …
Hybrid simulation of energetic particles interacting with magnetohydrodynamics using a slow manifold algorithm and GPU acceleration
The hybrid method combining particle-in-cell and magnetohydrodynamics can be used to
study the interaction between energetic particles and global plasma modes. In this paper we …
study the interaction between energetic particles and global plasma modes. In this paper we …
[HTML][HTML] Runaway electron fluid model extension in JOREK and ITER relevant benchmarks
We present details of recent extensions of the runaway electron (RE) fluid model
implemented in the fusion magnetohydrodynamics code JOREK [M. Hoelzl et al., Nucl …
implemented in the fusion magnetohydrodynamics code JOREK [M. Hoelzl et al., Nucl …
Non-linear dynamics of the double tearing mode
3D non-linear magnetohydrodynamics simulations of a double tearing mode with the
JOREK code are presented in the context of trying to better understand the benign …
JOREK code are presented in the context of trying to better understand the benign …
A Physics-Constrained Deep Learning Treatment of Runaway Electron Dynamics
CJ McDevitt, J Arnaud, XZ Tang - arXiv preprint arXiv:2412.12980, 2024 - arxiv.org
An adjoint formulation leveraging a physics-informed neural network (PINN) is employed to
advance the density moment of a runaway electron (RE) distribution forward in time. A …
advance the density moment of a runaway electron (RE) distribution forward in time. A …
Toroidal modeling of runaway electron loss due to 3D fields in ITER
Mitigation of runaway electrons (REs) by three-dimensional (3D) magnetic field
perturbations is numerically investigated for the ITER 15 MA baseline D–T scenario, utilizing …
perturbations is numerically investigated for the ITER 15 MA baseline D–T scenario, utilizing …
Conservative semi-lagrangian finite difference scheme for transport simulations using graph neural networks
Semi-Lagrangian (SL) schemes are highly efficient for simulating transport equations and
are widely used across various applications. Despite their success, designing genuinely …
are widely used across various applications. Despite their success, designing genuinely …
Extended-MHD simulations of disruption mitigation via massive gas injection in SPARC
Recent developments to the M3D-C1 code enable higher fidelity modeling of disruptions,
and can be applied in the design verification of reactor-scale tokamaks. Among these new …
and can be applied in the design verification of reactor-scale tokamaks. Among these new …
Calculation of collisionless pitch-angle scattering of runaway electrons with synchrotron radiation via high-order guiding-centre equation
Recently, the collisionless pitch-angle scattering for relativistic runaway electrons (REs) in
toroidal geometries such as tokamaks was discovered through a full orbit simulation …
toroidal geometries such as tokamaks was discovered through a full orbit simulation …
Diffusion–convection model of runaway electrons due to large magnetohydrodynamic perturbations in post-thermal quench plasmas
Systematic test particle tracing simulations for runaway electrons (REs) are performed for six
post-thermal quench equilibria from DIII-D and ITER, where large scale, kink-like n= 1 (n is …
post-thermal quench equilibria from DIII-D and ITER, where large scale, kink-like n= 1 (n is …