Numerical simulations of PRS yields for a pulsed power decade-quad generator

A systems study of the power flow coupling between the multi-modular, inductive energy store DECADE-QUAD generator and an imploding z-pinch load is investigated and discussed. An end-to-end numerical simulation for the transmission line generator, the plasma opening switch, and the dynamic load is applied to predict the inductive notch of the load current, the kinetic energy coupling, and the radiation yield arising from argon puff gas implosions. Predicted load performance is evaluated using a I-D non-LTE radiation transport treatment self consistently coupled to the MHD model and circuit power flow. The loads are configured as shells, uniform fills, and structured density profiles. The latter profiles are chosen for their stability during run-in as determined by 2-D MHD numerical simulations. Various models of the switch behavior are studied and their impact on the load dynamics. The radiative performance from an argon puff gas will be determined as a function of switch model, mass loading, and initial pinch radius.