36 citations · 221 across the 30 of their papers we have counts for
6 papers · 2 filters
Runaway dynamics in reactor-scale spherical tokamak disruptions
E. Berger, I. Pusztai, S. L. Newton +4
Understanding generation and mitigation of runaway electrons in disruptions is important for the safe operation of future tokamaks. In this paper we investigate runaway dynamics in…
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…
Stimulated-Raman-scattering amplification of attosecond XUV pulses with pulse-train pumps and application to local in-depth plasma-density measurement
Andréas Sundström, Mickael Grech, István Pusztai +1
We present a scheme for amplifying an extreme-ultraviolet (XUV) seed isolated attosecond pulse via stimulated Raman scattering of a pulse-train pump. At sufficient seed and pump in…
Runaway dynamics in disruptions with current relaxation
István Pusztai, Mathias Hoppe, Oskar Vallhagen
The safe operation of tokamak reactors requires a reliable modeling capability of disruptions, and in particular the spatio-temporal dynamics of associated runaway electron current…
Attosecond dispersion as a diagnostics tool for solid-density laser-generated plasmas
Andréas Sundström, István Pusztai, Per Eng-Johnsson +1
Extreme-ultraviolet pulses can propagate through ionised solid-density targets, unlike optical pulses and, thus, have the potential to probe the interior of such plasmas on sub-fem…
Effect of Two-Stage Shattered Pellet Injection on Tokamak Disruptions
O. Vallhagen, I. Pusztai, M. Hoppe +2
An effective disruption mitigation system in a tokamak reactor should limit the exposure of the wall to localized heat losses and to the impact of high current runaway electron bea…