Influence of radiation field on Non-LTE Xe plasmas

Several experiments [1,2] and simulations of Xe were recently reported, due to the possibility of simulating scaled radiative shocks [3]. Extensive and systematic detailed computations using HULLAC [4] were performed for Te around 100eV and several densities, with initial conditions far or near LTE. The radiation is described as a Planckian at Trad multiplied by a dilution factor D. In each case, D is varied between 0 and 3 for Trad=Te, and Trad is varied from 0 to Te*1.5 with D=1. We show that in some cases, the dilution factor has more influence on the average charge Z* than the ratio Trad/Te, Taking into account radiation field is very important for evaluating Z* and non-LTE opacities. \\[4pt] [1] Keiter, P. A., Drake, R. P., Perry, T. S.\textit{, et al.}, Phys. Rev. Let. \textbf{89}, 165003 (2002).\\[0pt] [2] Busquet, M., Thais, F., Gonzalez, M.\textit{, et al.}, J. App. Phys. \textbf{107}, 083302 (2010). \\[0pt] [3] Ryutov, D., Drake, R. P., Kane, J.\textit{, et al.}, Astrophys. J. \textbf{518}, 821 (1999). \\[0pt] [4] Klapisch, M. and Busquet, M., High Ener. Dens. Phys. \textbf{5}, 105 (2009).