Effect of bremsstrahlung radiation emission on fast electrons in plasmas
Artikel i vetenskaplig tidskrift, 2016

Bremsstrahlung radiation emission is an important energy loss mechanism for energetic electrons in plasmas. In this paper we investigate the effect of spontaneous bremsstrahlung emission on the momentum-space structure of the electron distribution, fully accounting for the emission of finite-energy photons. We find that electrons accelerated by electric fields can reach significantly higher energies than what is expected from energy-loss considerations. Furthermore, we show that the emission of soft photons can contribute significantly to the dynamics of electrons with an anisotropic distribution.

Fokker-Planck equation

runaway electrons

Boltzmann equation

bremsstrahlung

Författare

Ola Embréus

Chalmers, Fysik, Subatomär fysik och plasmafysik

Adam Stahl

Chalmers, Fysik, Subatomär fysik och plasmafysik

Tünde Fülöp

Chalmers, Fysik, Subatomär fysik och plasmafysik

New Journal of Physics

1367-2630 (ISSN)

Vol. 18 9 093023- 093023

Drivkrafter

Hållbar utveckling

Styrkeområden

Energi

Fundament

Grundläggande vetenskaper

Ämneskategorier

Fusion, plasma och rymdfysik

DOI

10.1088/1367-2630/18/9/093023