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 …

Disruptions in ITER and strategies for their control and mitigation

M Lehnen, K Aleynikova, PB Aleynikov… - Journal of Nuclear …, 2015 - Elsevier
The thermal and electromagnetic loads related to disruptions in ITER are substantial and
require careful design of tokamak components to ensure they reach the projected lifetime …

[HTML][HTML] Status of research toward the ITER disruption mitigation system

EM Hollmann, PB Aleynikov, T Fülöp… - Physics of …, 2015 - pubs.aip.org
An overview of the present status of research toward the final design of the ITER disruption
mitigation system (DMS) is given. The ITER DMS is based on massive injection of impurities …

Runaway electron beam generation and mitigation during disruptions at JET-ILW

C Reux, V Plyusnin, B Alper, D Alves, B Bazylev… - Nuclear …, 2015 - iopscience.iop.org
Disruptions are a major operational concern for next generation tokamaks, including ITER.
They may generate excessive heat loads on plasma facing components, large …

First demonstration of rapid shutdown using neon shattered pellet injection for thermal quench mitigation on DIII-D

N Commaux, D Shiraki, LR Baylor, EM Hollmann… - Nuclear …, 2016 - iopscience.iop.org
Shattered pellet injection (SPI) is one of the prime candidates for the ITER disruption
mitigation system because of its deeper penetration and larger particle flux than massive …

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 …

Modeling the complete prevention of disruption-generated runaway electron beam formation with a passive 3D coil in SPARC

RA Tinguely, VA Izzo, DT Garnier, A Sundström… - Nuclear …, 2021 - iopscience.iop.org
The potential formation of multi-mega-ampere beams of relativistic'runaway'electrons (REs)
during sudden terminations of tokamak plasmas poses a significant challenge to the …

Runaway electron deconfinement in SPARC and DIII-D by a passive 3D coil

VA Izzo, I Pusztai, K Särkimäki, A Sundström… - Nuclear …, 2022 - iopscience.iop.org
The operation of a 3D coil—passively driven by the current quench (CQ) loop voltage—for
the deconfinement of runaway electrons (REs) is modeled for disruption scenarios in the …

Radiation asymmetry and MHD destabilization during the thermal quench after impurity shattered pellet injection

D Hu, E Nardon, M Hoelzl, F Wieschollek… - Nuclear …, 2021 - iopscience.iop.org
The radiation response and the MHD destabilization during the thermal quench after a
mixed species shattered pellet injection with impurity species neon and argon are …

Runaway electron confinement modelling for rapid shutdown scenarios in DIII-D, Alcator C-Mod and ITER

VA Izzo, EM Hollmann, AN James, JH Yu… - Nuclear …, 2011 - iopscience.iop.org
MHD simulations of rapid shutdown scenarios by massive particle injection in DIII-D, Alcator
C-Mod and ITER are performed in order to study runaway electron (RE) transport during …