Anisotropic Elastic Scattering Models of Neutral Fusion-Relevant Species for Monte Carlo Plasma Modeling

Accurate elastic differential cross sections are essential for modeling many plasma scenarios, particularly in low temperature plasma technologies or the cooler edge regions of tokamaks. Currently, few models have reported the ability to accurately predict elastic electron scattering from neutral targets at low energies. Here we present an alternative analytic approach that is applicable to H, He, H₂ and the respective isotopes across a wide-range of energies. It is shown that the current model reliably predicts elastic anisotropic scattering, while also offering straightforward analytic expressions that can be implemented efficiently in particle-in-cell (PIC) / Monte Carlo (MC) modeling.