X-ray radiation transport in GPU accelerated Particle In Cell plasma simulations

Ultra-high-intensity laser pulse interactions with solid density targets are of central importance for modern accelerator physics, Inertial Confinement Fusion(ICF) and astrophysics. In order to meet the requirements of real-world applications, a deeper understanding of the underlying plasma dynamics, including plasma instabilities and acceleration mechanisms, is needed. X- ray radiation plays a substantial role in plasma physics, either as an integral part of a physical system itself or as a useful diagnostic, hence it should be included in computational models. This thesis aims to introduce X-ray radiation transport to the Particle In Cell simulation software PIConGPU. The key outcomes of this work are a Monte Carlo, particle-based, online, and in-situ solution to X-ray radiation modelling (enabling, among-others, SAXS and polarimetry synthetic experiments), as well as an analytical formulation for multiple-order, coherent X-ray scattering within this model. Moreover, the thesis includes three-dimensional simulations of laser-matter interactions together with Faraday Rotation and SAXS calculation