NORSE: A solver for the relativistic non-linear Fokker-Planck equation for electrons in a homogeneous plasma
| Main Author: | Ballantyne, John |
|---|---|
| Other Authors: | Stahl, A., Landreman, M., Embréus, O., Fülöp, T. |
| Format: | Dataset |
| Terbitan: |
Mendeley
, 2016
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| Subjects: | |
| Online Access: |
https:/data.mendeley.com/datasets/86wmgj758w |
Daftar Isi:
- Energetic electrons are of interest in many types of plasmas, however previous modelling of their properties have been restricted to the use of linear Fokker–Planck collision operators 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 departures 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 previously predicted.