Flow Dynamics Along Complex Magnetically Insulated Transmission Lines

We study by PIC simulations the simple model of a magnetically insulated transmission line fed by a matched voltage source and driven additionally by a single transverse source adding voltage to it at a certain point along its length. For best power flow, an impedance transition is required after this point. We study the effect of the parameters of this geometrical transition on the power flow and the dynamics of the sheath flow. We also find conditions for the onset of unstable flow resulting in the formation of strong electron vortices.