RADIATION TRANSPORT CALCULATIONS FOR LINES WITH THE VOIGT PROFILE

V. Ya. Goldin, V. A. Degtyarev
VANT. Ser. Metodiki i Programmy Chislennogo Resheniya Zadach Matematicheskoy Fiziki 1986. Вып.3. С. 13-19.

      For radiation transport in a line with a local thermodynamic equilibrium, an efficient frequency averaging method is tested. For a problem with LTE removed, we propose several methods for combined calculations of radiation transport in lines and level kinetics. These calculations rely upon reducing the transport equation to a diffusion-like system and approximating the transport equation in terms of useful life time (T-approximation). The methods were tested by computing radiation propagating through a plane cold material layer.