Reaction of runaway electron distributions to radiative processes
Conference poster, 2015

The emission of electromagnetic radiation by a charged particle in accelerated motion is associated with a reduction in its energy, accounted for by the inclusion of a radiation reaction force in the kinetic equation. For runaway electrons in plasmas, the dominant radiative processes are the emission of bremsstrahlung and synchrotron radiation. In this contribution, we investigate the impact of the associated radiation reaction forces on the runaway electron distribution, using both analytical and numerical studies, and discuss the corresponding change to the runaway electron growth rate, which can be substantial. We also report on the formation of non-monotonic features in the runaway electron tail as a consequence of the more complicated momentum-space dynamics in the presence of radiation reaction.

Author

Adam Stahl

Chalmers, Applied Physics, Nuclear Engineering

Ola Embréus

Chalmers, Applied Physics, Nuclear Engineering

Eero Hirvijoki

Chalmers, Applied Physics, Nuclear Engineering

Istvan Pusztai

Chalmers, Applied Physics, Nuclear Engineering

Joan Decker

Chalmers, Applied Physics, Nuclear Engineering

Sarah Newton

Chalmers, Applied Physics, Nuclear Engineering

Tünde Fülöp

Chalmers, Applied Physics, Nuclear Engineering

57th Annual Meeting of the APS Division of Plasma Physics

Vol. 60 19 PP12.00103 -

Driving Forces

Sustainable development

Areas of Advance

Energy

Roots

Basic sciences

Subject Categories

Fusion, Plasma and Space Physics

More information

Created

10/7/2017