STUDY OF SOME PLASMA RADIATIVE PROPERTIES BASED ON THE FREQUENCY FLUCTUATION MODEL APPROACH

The main ideas of the Frequency Fluctuation Model (FFM), developed to calculate line shapes emitted by multi electron ions in hot and dense plasmas, are summarized. The line shape code which has been based on t he FFM is particularly useful in accounting for the so-called ion dyna mics effect and permits the tracing of the relevant inhomogeneous char acteristics of the radiative patterns at each stage of the calculation s. Information about the inhomogeneities of a given line is collected through a numerical coarse-graining process giving rise to microfield dressed two-level systems. These systems mimic the main features of th e radiative properties of the emitter and are used as a basis to model the radiative redistribution function, a second order plasma radiativ e property. The second order theory is discussed and a few examples, c alculated for complex emitter systems, are shown.