43 citations · 104 across the 5 of their papers we have counts for
7 papers · 2 filters
Alpha particle driven Alfvénic instabilities in ITER post-disruption plasmas
Andrej Lier, Gergely Papp, Philipp Lauber +3
Fusion-born alpha particles in ITER disruption simulations are investigated as a possible drive of Alfvénic instabilities. The ability of these waves to expel runaway electron (RE)…
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…
Spatiotemporal analysis of the runaway distribution function from synchrotron images in an ASDEX Upgrade disruption
M. Hoppe, L. Hesslow, O. Embreus +14
Synchrotron radiation images from runaway electrons (REs) in an ASDEX Upgrade discharge disrupted by argon injection are analyzed using the synchrotron diagnostic tool SOFT and cou…
Kinetic modelling of runaway electron generation in argon-induced disruptions in ASDEX Upgrade
K. Insulander Björk, G. Papp, O. Embreus +8
Massive material injection has been proposed as a way to mitigate the formation of a beam of relativistic runaway electrons that may result from a disruption in tokamak plasmas. In…
Runaway dynamics in the DT phase of ITER operations in the presence of massive material injection
O. Vallhagen, O Embreus, I Pusztai +2
A runaway avalanche can result in a conversion of the initial plasma current into a relativistic electron beam in high current tokamak disruptions. We investigate the effect of mas…