A new method based on random walk theory to model multiple elastic scattering of electrons is presented which gives the efficient convergence of scattering series. This method modelled the multiple scattering as a series of random walks on a unit sphere, with each scattering event equivalent to one step in the random walk sequence. The step size of the random walk is characterised by the scattering angle which is determined by the scattering differential cross-section. Dirac partial wave program ELSEPA has been used to calculate the differentia...
