2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/6437We present population synthesis modeling of the X-ray background with genetic algorithm - based optimization method. In our models the best fit could be achieved for lower values of high-energy exponential cut-off (~ 170 keV) and larger amount of the highly obscured (log N_H=25.5) AGNs.7 pages 3 figures. Poster presented on the symposium "The Restless High-Energy Universe", 5-8 May 2003, Amsterdam, The NetherlandsAstrophysicsPopulation synthesis modeling of the X-ray background with genetic algorithm - based optimization methodtext