Design and analysis of the Z-pinch loads on the PTS facility

In this paper, a method for designing and optimizing the wire-array loads used on the PTS facility is presented. Both ZP-0D code (shell model) and MARED-1D code (MHD model) are used for the simulation. By comparing results from each code, the characteristics of the Z-pinch implosion plasma driven by the PTS facility are investigated, and the load parameters are optimized. It is found that, a 15 nH concentrator inductance is efficient for PTS facility to work at load currents up to 10 MA. And an optimized tungsten wire-array load is able to produce an X-ray radiation with peak power up to 100 TW and a highest efficiency of conversion for the wall-plug power of about 10%. By further investigation and comparison with experimental data, we suppose that the PTS facility will have similar X-ray radiation productivity as the Saturn facility operating in the long-pulse mode.