Effects of high energy photon emissions in laser generated ultra-relativistic plasmas: Real-time synchrotron simulations
Artikel i vetenskaplig tidskrift, 2015

We model the emission of high energy photons due to relativistic charged particle motion in intense laser-plasma interactions. This is done within a particle-in-cell code, for which high frequency radiation normally cannot be resolved due to finite time steps and grid size. A simple expression for the synchrotron radiation spectra is used together with a Monte-Carlo method for the emittance. We extend previous work by allowing for arbitrary fields, considering the particles to be in instantaneous circular motion due to an effective magnetic field. Furthermore, we implement noise reduction techniques and present validity estimates of the method. Finally, we perform a rigorous comparison to the mechanism of radiation reaction, and find the emitted energy to be in excellent agreement with the losses calculated using radiation reaction.

Författare

Erik Karl Wallstén Wallin

Chalmers, Teknisk fysik, Kondenserade materiens teori

Arkady Gonoskov

Chalmers, Teknisk fysik, Kondenserade materiens teori

Mattias Marklund

Chalmers, Teknisk fysik, Kondenserade materiens teori

Physics of Plasmas

1070-664X (ISSN) 1089-7674 (eISSN)

Vol. 22 033117

Ämneskategorier

Annan teknik

DOI

10.1063/1.4916491