2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/37453A full simulation program based on GEANT4 has been developed to study beam-induced backgrounds in the JLC beam delivery system. We report some results obtained using this program.9 pages 9 figures Latex, Presented at the International Workshop on Linear Colliders (LCWS2002)High Energy Physics - ExperimentStudy of Backgrounds at JLC IRtext