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P: Fachverband Plasmaphysik

P 18: Poster: Theorie/Modellierung

P 18.10: Poster

Mittwoch, 1. April 2009, 17:30–19:30, Foyer des IfP

Radiation Hydrodynamics of Laser-induced Plasmas using dynamic collision frequencies — •Philipp Sperling, August Wierling, Gerd Roepke, and Mathias Winkel — Universitaet Rostock, Institut fuer Physik

Radiation Hydrodynamics of laser-induced Plasmas is usually treated by well-established hydrodynamic codes such as MEDUSA or MULTI. These codes require transport coefficients, e.g. the absorption coefficients or thermal conductivity, as inputs. Typically, Spitzer-Haerm-like expressions are used. However for high densities these expressions can not be applied and have to be replaced by more advanced expressions. In particular quantum effects and dynamical screening have to be accounted for in a systematic manner, see Reinholz et al. PRE 62, 5648 (2000). Here, we present results for a hydrodynamical calculation including these advanced collision frequencies. We also compare to earlier calculations with Spitzer-Haerm-like expressions.