  This work extends the one-dimensional radiation-hydrodynamic imploding
spherical argon plasma liner simulations of T. J. Awe et al. [Phys. Plasmas 18,
072705 (2011)] by using a detailed tabular equation-of-state (EOS) model,
whereas Awe et al. used a polytropic EOS model. Results using the tabular EOS
model give lower stagnation pressures by a factor of 3.9-8.6 and lower peak ion
temperatures compared to the polytropic EOS results. Both local thermodynamic
equilibrium (LTE) and non-LTE EOS models were used in this work, giving similar
results on stagnation pressure. The lower stagnation pressures using a tabular
EOS model are attributed to a reduction in the liner's ability to compress
arising from the energy sink introduced by ionization and electron excitation,
which are not accounted for in a polytropic EOS model. Variation of the plasma
liner species for the same initial liner geometry, mass density, and velocity
was also explored using the LTE tabular EOS model, showing that the highest
stagnation pressure is achieved with the highest atomic mass species for the
constraints imposed.
