Study of plasma detachment in a simplified 2D geometry using UEDGE

A generic plasma in a two-dimensional slab geometry has been used to study the location of the ionisation front in dependence of the core plasma density and input heating power. The ratio of the recombination to ionisation current and the volumetric momentum losses in the computational domain have been used to quantify the degree of detachment. Contours of constant ratio of these parameters in the core plasma density - heating power parameter space indicate that high volumetric momentum losses can be achieved at high heating power and even low core plasma density. High fractious of recombination to ionisation, however, at high heating power also require high core densities to sufficiently separate the plasma from the target plate.