Circuit Modeling for PTS´s Magnetically Insulated Transmission Lines

The primary test stand (PTS) is a high-current accelerator for Z-pinch experiment at China Academy of Engineering Physics. In this paper, a circuit model for its magnetically insulated transmission lines (MITLs) have been developed, in which all the PTSs transmission line (TL) sections from water TLs, to vacuum insulator stack, to both outer and inner MITLs, and eventually to a wire array load, have been treated as a total of 273 TL elements with different transit time and impedance, among which are comprised of 195 MITL elements. With the aid of the model, the performance of all these sections have been predicted and discussed, including conducting current, interface voltage, loss current, flow impedance, and grounded resistor of each MITL element, as well as the dynamic characteristics of the wire array load. The reliability and accuracy for all these predicted results will await the examination of future experiments.