NORSE: A solver for the relativistic non-linear Fokker-Planck equation for electrons in a homogeneous plasma
Artikel i vetenskaplig tidskrift, 2017

Energetic electrons are of interest in many types of plasmas, howe ver previous modelling of their properties have been restricted to the use of linear Fokker-Planck collision ope rators or non-relativistic formulations. Here, we describe a fully non-linear kinetic-equation solver, capable of handling large electric-field strengths (compared to the Dreicer field) and relativistic temperatures. This tool allows modelling of the momentum- space dynamics of the electrons in cases where strong departure s from Maxwellian distributions may arise. As an example, we consider electron runaway in magnetic-confinement fusion plasmas and describe a transition to electron slide-away at field strengths significantly lower than pre viously predicted.

Författare

Adam Stahl

Chalmers, Fysik, Subatomär fysik och plasmafysik

M Landreman

University of Maryland

Ola Embréus

Chalmers, Fysik, Subatomär fysik och plasmafysik

Tünde Fülöp

Chalmers, Fysik, Subatomär fysik och plasmafysik

Computer Physics Communications

0010-4655 (ISSN)

Vol. 212 269-279

Drivkrafter

Hållbar utveckling

Styrkeområden

Energi

Fundament

Grundläggande vetenskaper

Ämneskategorier

Fusion, plasma och rymdfysik

DOI

10.1016/j.cpc.2016.10.024