TRANSIENT MULTICENTRE ELECTRONIC STRUCTURE IN DENSE PLASMAS

摘要

We have adapted the multiple-scattered-wave method (used in solid-state cluster and molecular electronic structure calculations) to investigate the possibility that "transient clusters" in a dense plasma might affect the opacity of the plasma. Based initially on a simple, static cluster model in a highly symmetric configuration, we investigated the change in shape of core-level absorption edges and variations arising from configurational changes. The results we present, for a series of clusters in a dense carbon plasma, show considerable sensitivity to the geometry of the cluster and indicate that the configuration average required in a full calculation for a real plasma will be a formidable task.