Reaction of runaway electron distributions to radiative processes
Poster (konferens), 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.

Författare

Adam Stahl

Chalmers, Teknisk fysik, Nukleär teknik

Ola Embréus

Chalmers, Teknisk fysik, Nukleär teknik

Eero Hirvijoki

Chalmers, Teknisk fysik, Nukleär teknik

Istvan Pusztai

Chalmers, Teknisk fysik, Nukleär teknik

Joan Decker

Chalmers, Teknisk fysik, Nukleär teknik

Sarah Newton

Chalmers, Teknisk fysik, Nukleär teknik

Tünde Fülöp

Chalmers, Teknisk fysik, Nukleär teknik

57th Annual Meeting of the APS Division of Plasma Physics

Vol. 60 PP12.00103 -

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Fusion, plasma och rymdfysik