Abstract

Simulations of a gas puff Z pinch were performed, using an appropriately modified version of the M3D code [Park et al., Phys. Plasmas 6, 1796 (1999)]. The simulations investigated the stagnation process, including the effects of the shock driven by the magnetic piston and the influence of the Rayleigh Taylor instability. The results compare favorably with recent experimental measurements. The stagnated plasma reaches a quasi equilibrium with approximate balance of plasma pressure and magnetic pressure, measured by β≤1. The dependence of the stagnation radius on β and radiative energy loss are calculated, using a simple radiation model.

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