An efficient snow plow model to deduce plasma focus macroscale parameters

摘要

As early as 1971 two dimensional models of plasma focus behavior were implemented¹. Lee² developed a one dimensional snow plow model that uses four free parameters (mass and current fractions in both axial and radial flows) to fit to measured data. This model has proved to be a useful tool for DPF design, but is not amenable to rapid analysis of a high data rate DPF. In the spirit of Lee's model, a multiphase snow plow model was implemented to determine the properties of the axial rundown and radial implosion of a plasma focus. The model is computationally efficient so it is useful for machines that fire at >1Hz repetition rate to enable near real time data reduction.