80 citations · 1.2k across the 62 of their papers we have counts for
6 papers · 1 filter
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…
Multimillijoule terahertz radiation from laser interactions with microplasma-waveguides
Ke Hu, Longqing Yi, Tünde Fülöp
When a relativistic, femtosecond laser pulse enters a waveguide, the pulse energy is coupled into waveguide optical modes. The longitudinal laser field effectively accelerates elec…
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…
Attosecond betatron radiation pulse train
Vojtěch Horný, Miroslav Krůs, Tünde Fülop
High-intensity X-ray sources are essential diagnostic tools for science, technology and medicine. Such X-ray sources can be produced in laser-plasma accelerators, where electrons e…
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…
Runaway electron synchrotron radiation in a vertically translated plasma
M. Hoppe, G. Papp, T. Wikjamp +6
Synchrotron radiation observed from runaway electrons (REs) in tokamaks depends upon the position and size of the RE beam, the RE energy and pitch distributions, as well as the loc…