Speaker
Description
In recent work, we introduced a novel multi-level Monte-Carlo scheme for kinetic simulations of neutral particles in plasmas near the isotropic cross-section limit. Of particular interest is the case of edge plasmas in detatched or near-detached regimes. The multi-level scheme in this case is based on a propagator formalism enumerating discrete charge-exchange collision events. This scheme reproduces the results of known algorithms in the large particle number and fine mesh limit. More importantly, the new formalism shows promise for differentiable and deterministic particle-based models. At the end, we will discuss preliminary work implementing this method for fully-implicit coupled plasma-kinetic neutral models. This talk/poster is based on joint work with Maxim Umansky and Ben Dudson.