Effect of frequency redistribution in X-ray laser modeling

Calculations are presented of the spectral emissivity corrected for higher-order processes such as photon scattering. Usually, photon scattering is taken into account by postulating a complete frequency redistribution approximation, i.e., same absorption and emission spectra. However, cases exist in hot and dense plasmas for which partial frequency redistribution and angular redistribution play an important role for the radiative transfer mechanisms. Examples of X-ray lasers based on neon-like germanium ion emitters and hydrogen-like carbon ion emitters are considered. [Copyright &y& Elsevier]