Study of the Bryn Mawr Experiment's coaxial plasma gun and magnetic shaping coils via COMSOL Multiphysics modeling and simulation

The Bryn Mawr Experiment (BMX) investigates the magnetic turbulence of plasma structures formed within a flux conserving cylindrical chamber. The BMX generates these self-contained structures using an internal coaxial plasma gun source, with an internal coil providing a radial magnetic stuffing flux. Two external coaxial coils provide additional magnetic flux for stuffing or shaping the plasma structures. In an effort to increase bulk plasma speed, the external coils are modeled as a magnetic nozzle in COMSOL Multiphysics as a basis for experiment on BMX. Results from the magnetic nozzle COMSOL simulation and preliminary experimental results are presented and discussed.