Progress on Radiative Transfer Modelling in Optically Thick Divertor Plasmas

The physical model used in the photon transport module of the Monte-Carlo code EIRENE (www.eirene.de) is presented. A critical assessment of the spectral line broadening mechanisms (which give the shape of the photon-atom reaction rates) and of their relevance in a transport simulation is carried out (© 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)