Continuum-kinetic studies of the influence of magnetic fields and wall emission on the plasma sheath.

Plasma-material interactions are phenomena found across a wide range of applications, from numerous fusion reactors to electric propulsion concepts. These interactions are primarily dominated by the structure and behavior of the plasma sheath, which can be modified substantially by particle emissions from the material wall and background magnetic fields. Hence, in order to accurately model the interactions and the sheath dynamics in these applications, the impact of these processes must be carefully considered. In this work, continuum kinetic simulations of magnetized plasma sheaths are conducted using the Gkeyll code, which discretizes and evolves the Vlasov-Maxwell-Fokker-Planck equation using the discontinuous Galerkin method. The influence of different magnetic field strengths and angles on the structure of the sheath is illustrated and benchmarked against existing literature for the physically relevant cases and regimes.