Physics of runaway electrons in tokamaks

BN Breizman, P Aleynikov, EM Hollmann… - Nuclear …, 2019 - iopscience.iop.org
Of all electrons, runaway electrons have long been recognized in the fusion community as a
distinctive population. They now attract special attention as a part of ITER mission …

Formation and termination of runaway beams in ITER disruptions

JR Martín-Solís, A Loarte, M Lehnen - Nuclear Fusion, 2017 - iopscience.iop.org
A self-consistent analysis of the relevant physics regarding the formation and termination of
runaway beams during mitigated disruptions by Ar and Ne injection is presented for selected …

A novel path to runaway electron mitigation via deuterium injection and current-driven MHD instability

C Paz-Soldan, C Reux, K Aleynikova… - Nuclear …, 2021 - iopscience.iop.org
Relativistic electron (RE) beams at high current density (low safety factor, qa) yet very low
free-electron density accessed with D 2 secondary injection in the DIII-D and JET tokamak …

Kink instabilities of the post-disruption runaway electron beam at low safety factor

C Paz-Soldan, NW Eidietis, YQ Liu… - Plasma Physics and …, 2019 - iopscience.iop.org
Realization of a high-current (approaching 1 MA) post-disruption runaway electron (RE)
beam in DIII-D yields controlled access to very low edge safety factor (qa) conditions. This …

MARS-F modeling of post-disruption runaway beam loss by magnetohydrodynamic instabilities in DIII-D

YQ Liu, PB Parks, C Paz-Soldan, C Kim, LL Lao - Nuclear Fusion, 2019 - iopscience.iop.org
A drift orbit model for relativistic test electrons has been incorporated into the MARS-F code
(Liu et al 2000 Phys. Plasmas 7 3681), in order to study the runaway electron (RE) behavior …

Runaway electron mitigation by 3D fields in the ASDEX-Upgrade experiment

M Gobbin, L Li, YQ Liu, L Marrelli… - Plasma Physics and …, 2017 - iopscience.iop.org
Disruption-generated runaway electron (RE) beams represent a severe threat for tokamak
plasma-facing components in high current devices like ITER, thus motivating the search of …

Simulating the nonlinear interaction of relativistic electrons and tokamak plasma instabilities: implementation and validation of a fluid model

V Bandaru, M Hoelzl, FJ Artola, G Papp… - Physical Review E, 2019 - APS
For the simulation of disruptions in tokamak fusion plasmas, a fluid model describing the
evolution of relativistic runaway electrons and their interaction with the background plasma …

Runaway electron beam dynamics at low plasma density in DIII-D: energy distribution, current profile, and internal instability

A Lvovskiy, C Paz-Soldan, NW Eidietis… - Nuclear …, 2020 - iopscience.iop.org
Parameters of the post-disruption runaway electron (RE) beam in the low density
background plasma achieved after secondary deuterium injection are investigated in DIII-D …

Runaway electron mitigation by 3D fields application in ASDEX Upgrade, COMPASS, and RFX-mod

M Gobbin, M Valisa, L Marrelli, G Papp… - Frontiers in …, 2024 - frontiersin.org
Disruption-generated runaway electron (RE) beams represent a potentially severe threat for
tokamak plasma-facing components. Application of properly designed 3D fields can act as a …

[HTML][HTML] Toroidal modeling of runaway electron loss due to 3-D fields in DIII-D and COMPASS

Y Liu, C Paz-Soldan, E Macusova, T Markovic… - Physics of …, 2020 - pubs.aip.org
The 3-D field induced relativistic runaway electron (RE) loss has been simulated for DIII-D
and COMPASS plasmas, utilizing the MARS-F code incorporated with the recently …