Demonstration of safe termination of megaampere relativistic electron beams in tokamaks
C Reux, C Paz-Soldan, P Aleynikov, V Bandaru… - Physical Review Letters, 2021 - APS
For the first time it is experimentally demonstrated on the JET tokamak that a combination of
a low impurity concentration bulk plasma and large magnetohydrodynamic instabilities is …
a low impurity concentration bulk plasma and large magnetohydrodynamic instabilities is …
[HTML][HTML] Physics and applications of dusty plasmas: The Perspectives 2023
Dusty plasmas are electrically quasi-neutral media that, along with electrons, ions, neutral
gas, radiation, and electric and/or magnetic fields, also contain solid or liquid particles with …
gas, radiation, and electric and/or magnetic fields, also contain solid or liquid particles with …
Runaway electron deconfinement in SPARC and DIII-D by a passive 3D coil
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 …
the deconfinement of runaway electrons (REs) is modeled for disruption scenarios in the …
Kink instabilities of the post-disruption runaway electron beam at low safety factor
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 …
beam in DIII-D yields controlled access to very low edge safety factor (qa) conditions. This …
Design of passive and structural conductors for tokamaks using thin-wall eddy current modeling
A new three-dimensional electromagnetic modeling tool (ThinCurr) has been developed
using the existing PSI-Tet finite-element code in support of conducting structure design work …
using the existing PSI-Tet finite-element code in support of conducting structure design work …
MARS-F modeling of post-disruption runaway beam loss by magnetohydrodynamic instabilities in DIII-D
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 …
(Liu et al 2000 Phys. Plasmas 7 3681), in order to study the runaway electron (RE) behavior …
Runaway electron seed formation at reactor-relevant temperature
C Paz-Soldan, P Aleynikov, EM Hollmann… - Nuclear …, 2020 - iopscience.iop.org
Systematic variation of the pre-disruption core electron temperature (T e) from 1 to 12 keV
using an internal transport barrier scenario reveals a dramatic increase in the production …
using an internal transport barrier scenario reveals a dramatic increase in the production …
Effects of magnetic perturbations and radiation on the runaway avalanche
P Svensson, O Embreus, SL Newton… - Journal of Plasma …, 2021 - cambridge.org
The electron runaway phenomenon in plasmas depends sensitively on the momentum-
space dynamics. However, efficient simulation of the global evolution of systems involving …
space dynamics. However, efficient simulation of the global evolution of systems involving …
Runaway electron mitigation by 3D fields application in ASDEX Upgrade, COMPASS, and RFX-mod
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 …
tokamak plasma-facing components. Application of properly designed 3D fields can act as a …
Passive deconfinement of runaway electrons using an in-vessel helical coil
A helical coil designed to passively generate non-axisymmetric fields during a plasma
disruption is shown (via electromagnetic analysis, linear MHD modeling, and relativistic drift …
disruption is shown (via electromagnetic analysis, linear MHD modeling, and relativistic drift …