36 citations · 175 across the 10 of their papers we have counts for
10 papers
On the minimum transport required to passively suppress runaway electrons in SPARC disruptions
R. A. Tinguely, I. Pusztai, V. A. Izzo +8
In [V.A. Izzo et al 2022 Nucl. Fusion 62 096029], state-of-the-art modeling of thermal and current quench (CQ) MHD coupled with a self-consistent evolution of runaway electron (RE)…
The impact of fusion-born alpha particles on runaway electron dynamics in ITER disruptions
Andrej Lier, Gergely Papp, Philipp Lauber +3
In the event of a tokamak disruption in a D-T plasma, fusion-born alpha particles take several milliseconds longer to thermalise than the background. As the damping rates drop dras…
Runaway electron deconfinement in SPARC and DIII-D by a passive 3D coil
V. A. Izzo, I. Pusztai, K. Särkimäki +7
The operation of a 3D coil--passively driven by the current quench loop voltage--for the deconfinement of runaway electrons is modeled for disruption scenarios in the SPARC and DII…
Confinement of passing and trapped runaway electrons in the simulation of an ITER current quench
Konsta Särkimäki, Javier Artola, Matthias Hoelzl
Runaway electrons (REs) present a high-priority issue for ITER but little is known about the extent to which RE generation is affected by the stochastic field intrinsic to disrupti…
Modeling the complete prevention of disruption-generated runaway electron beam formation with a passive 3D coil in SPARC
RA Tinguely, VA Izzo, DT Garnier +8
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 toka…
Effects of magnetic perturbations and radiation on the runaway avalanche
P. Svensson, O. Embreus, S. L. Newton +3
The electron runaway phenomenon in plasmas depends sensitively on the momentum-space dynamics. However, efficient simulation of the global evolution of systems involving runaway el…
Assessing energy dependence of the transport of relativistic electrons in perturbed magnetic fields with orbit-following simulations
Konsta Särkimäki, Ola Embreus, Eric Nardon +2
Experimental observations, as well as theoretical predictions, indicate that the transport of energetic electrons decreases with energy. This reduction in transport is attributed t…
Mechanics of ELM control coil induced alpha particle transport
Konsta Särkimäki, Jari Varje, Marina Bécoulet +2
Using the orbit-following code ASCOT, we model alpha particle transport in ITER under the influence of ELM control coils (ECCs), toroidal field ripple, and test blanket modules, wi…
Adaptive time-stepping Monte Carlo integration of Coulomb collisions
Konsta Särkimäki, Eero Hirvijoki, Juuso Terävä
We report an accessible and robust tool for evaluating the effects of Coulomb collisions on a test particle in a plasma that obeys Maxwell-Jüttner statistics. The implementation is…
An advection-diffusion model for cross-field runaway electron transport in perturbed magnetic fields
Konsta Särkimäki, Eero Hirvijoki, Joan Decker +2
Disruption-generated runaway electrons (RE) present an outstanding issue for ITER. The predictive computational studies of RE generation rely on orbit-averaged computations and, as…