Soft X-ray laser amplification through dynamics of capillary discharge Z-pinch plasmas

Abstract

The optimum conditions for soft x-ray amplification through the dynamics of Ar plasma, created by the capillary discharge Z-pinch, have been investigated. The numerical simulation of plasma dynamics was based on magnetohydrodynamic one-dimensional radiation model at different initial discharge pressures ranging from 240 to 15000 mTorr. The plasma behavior of the implosion-pinch phase was analyzed, taking plasma atomic processes into account. The optimum soft x-ray lasing occurs in the 3s-3p transition in Ne-like Ar plasma. Radiation emission and absorption effects on gain coefficients were also examined.