MULTICENTER WAVE-FUNCTIONS IN OPACITY CALCULATIONS FOR DENSE-PLASMAS

We present the results of calculations for the K-edges of representati ve transient carbon ion clusters in a dense carbon plasma. The calcula tions use the recently implemented non-''muffin-tin'' scattered-wave m ethod previously used in the molecular and solid-state fields. Based o n a simple model for the cluster potentials it is shown that, compared with a single ion calculation, the presence of neighboring ions can s ignificantly alter the K-edge photoionization cross sections, and henc e the resulting opacities.