Radiation Hydrodynamics of Laser-Induced Plasmas Using Dynamic Collision Frequencies
2009
Radiation hydrodynamics of laser-induced plasmas is usually treated by well-established hydrodynamic codes such as MEDUSA or MULTI, which require transport coefficients as inputs. Here, we present results for a hydrodynamical calculation taking advanced expressions for the collision frequency. In this way we generalize the Spitzer-Harm-like expression to high density plasmas. Using the resulting density- and temperature profiles we generate time resolved emission spectra using a quantum-statistical approach to line profiles in dense plasmas. We apply our code to EUV emission from laser-generated lithium plasmas. Implications for diagnostics are discussed (© 2009 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)
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