Stark-Zeeman line shape model for multi-electron radiators in hot and dense plasmas submitted to large magnetic fields

We present a Stark-Zeeman spectral line shape model and the associated numerical code, PPPB, designed to provide fast and accurate line shapes for arbitrary atomic systems for a large range of plasma conditions. PPPB is based on the coupling of the PPP code, a Stark broadened spectral line shape code, developed for multi-electron ion spectroscopy in hot and dense plasmas, and the MASCB code, recently developed to generate B-field dependent atomic physics. The latter provides energy levels, statistical weights and reduced matrix elements of multi-electron radiators by diagonalizing the atomic Hamiltonian which includes the well know B-dependent term. They are used as input in PPP working in the standard line broadening approach, i.e. using the quasi-static ion and impact electron approximations. The ion dynamics effects are introduced by the mean of the frequency fluctuation model (FFM). The physical model of the electron broadening is based on the semi-classical impact approximation including the effects of a strong collision term, of interference and cyclotron motion. Finally, to account for polarization effects, the output profiles are calculated for a given angle of observation with respect to the direction of the magnetic field. The potential of such model is presented through Stark-Zeeman spectral line shape calculations performed for various experimental conditions