Speaker
Description
Electrons injected in the bubble of laser wakefield acceleration produce due to their oscillations, synchrotron-like radiation called betatron radiation. In studying this process the trajectory of electrons determines the regime of oscillation, wiggler or undulator. The radation produced by an accelerated charge in electromagnetic field was described by the Larmor formula for nonrelativistic cases and using the Lienard-Wiechert potentials for the relativistic case. The link between the particle dynamics and the emitted radiation is the Poynting vector, which integrated on surface gives the radiated power. We examine these and the effect of the Abraham-Lorentz force (radiation reaction force). Besides, we present results obtained from PIC simulations with the photons emitted energy and parameters of the betatron oscillation such as wiggler strength parameter K, critical harmonics and critical energy.
