Numerical validation of a self absorption model for optically thick plasmas

Numerical validation of a self absorption model for high-pressure plasma-based light sources was discussed. It was assumed that the plasma is cylindrically symmetric. The side-on intensity emitted at wavelength ? along a plasma diameter perpendicular to the axis was considered. This intensity was given by the one-dimensional solution to the radiation transfer equation. The results are independent of the existence of local thermodynamic equilibrium (LTE) and are valid for the resonance lines too.