2056 20160701171658.0 10.1007/s10509-005-3925-1 DOI ASTROimport-213 van Hoof, P. A. M. 2005 Modeling X-Ray Photoionized Plasmas Produced at the Sandia Z-Facility In experiments at the high-power Z-facility at Sandia National Laboratory in Albuquerque, New Mexico, we have been able to produce a low density photoionized laboratory plasma of Fe mixed with NaF. The conditions in the experiment allow a meaningful comparison with X-ray emission from astrophysical sources. The charge state distributions of Fe, Na and F are determined in this plasma using high resolution X-ray spectroscopy. Independent measurements of the density and radiation flux indicate unprecedented values for the ionization parameter ξ = 20 25 erg cm s-1 under nearly steady-state conditions. First comparisons of the measured charge state distributions with X-ray photoionization models show reasonable agreement, although many questions remain. Foord, M. E. Heeter, R. F. Bailey, J. E. Chung, H.-K. Cuneo, M. E. Goldstein, W. H. Jonauskas, V. Keenan, F. P. Kisielius, R. Liedahl, D. A. Ramsbottom, C. Rose, S. J. Springer, P. T. Thoe, R. S. Astrophysics and Space Science 298 1-2 2005 147-153 http://esoads.eso.org/abs/2005Ap%26SS.298..147V published in REFERD