ANALYSIS OF THE ACCURACY OF COMPUTER-SIMULATIONS IN CALCULATIONS OF THE STARK-BROADENING OF HYDROGEN LY(ALPHA), LY(BETA) AND LY(GAMMA) LINES IN PLASMAS

An analysis of the accuracy of numerical methods and physical models, applied in computer simulations of hydrogen line profiles, formed in p lasmas, has been carried out. An electric microfield model has been pr oposed, reproducing the real microfields not worse than other hitherto existing models. The use of our model allows shortening the calculati on time for a profile by a factor of three. The numerical code develop ed for this purpose allows one to control the accuracy of the simulati on procedure. We present line profile results for Ly(alpha), Ly(beta) and Ly(gamma), which have been calculated with an accuracy being not w orse than 3%. The results have been compared with other theoretical an d experimental data. Copyright (C) 1995 Elsevier Science Ltd.