10 citations · 20 across the 8 of their papers we have counts for
9 papers · 1 filter
Thermal modeling of runaway electron induced damage in the SPARC tokamak
T. Rizzi, K. Paschalidis, S. Ratynskaia +6
The integrity of plasma-facing components (PFCs) in tokamaks is critically challenged by transient events such as runaway electron (RE) impacts. We report the first systematic anal…
Runaway electron generation in ITER mitigated disruptions with improved physics models
L. Votta, F. J. Artola, E. Nardon +2
We assess runaway-electron (RE) generation in ITER disruptions mitigated by shattered pellet injection (SPI) using improved physics modelling in the 1D disruption simulation framew…
Simulation of Shattered Pellet Injections with Plasmoid Drifts in ASDEX Upgrade and ITER
O. Vallhagen, L. Antonsson, P. Halldestam +7
Pellet injection is an important means to fuel and control discharges and mitigate disruptions in reactor-scale fusion devices. To accurately assess the efficiency of these applica…
An upper pressure limit for low-Z benign termination of runaway electron beams in TCV
M Hoppe, J Decker, U Sheikh +17
We present a model for the particle balance in the post-disruption runaway electron plateau phase of a tokamak discharge. The model is constructed with the help of, and applied to,…
Cross-Calibration and First Vertical ECE Measurement of Electron Energy Distribution in the TCV Tokamak
A. Tema Biwole, L. Porte, A. Fasoli +8
This paper describes the first Vertical Electron Cyclotron Emission (V-ECE) measurement of non-thermal electron distributions in the \textit{Tokamak à Configuration Variable}, TCV.…
First numerical analysis of runaway electron generation in tungsten-rich plasmas towards ITER
J. Walkowiak, M. Hoppe, I. Ekmark +7
The disruption and runaway electron analysis model code was extended to include tungsten impurities in disruption simulations with the aim of studying the runaway electron (RE) gen…
Expulsion of runaway electrons using ECRH in the TCV tokamak
J. Decker, M. Hoppe, U. Sheikh +19
Runaway electrons (REs) are a concern for tokamak fusion reactors from discharge startup to termination. A sudden localized loss of a multi-megaampere RE beam can inflict severe da…
Fluid and kinetic studies of tokamak disruptions using Bayesian optimization
Ida Ekmark, Mathias Hoppe, Tünde Fülöp +4
When simulating runaway electron dynamics in tokamak disruptions, fluid models with lower numerical cost are often preferred to more accurate kinetic models. The aim of this work i…
Inelastic collisions facilitating runaway electron generation in weakly-ionized plasmas
Y. Lee, P. Aleynikov, P. C. de Vries +7
Dreicer generation is one of the main mechanisms of runaway electrons generation, in particular during tokamak startup. In fully ionized plasma it is described as a diffusive flow…