Muon collider detector design and interaction region optimization are strongly correlated by the beam-induced background that finally determines the detector performance. Therefore, it is crucial to be able to study and optimize both of them simultaneously, being able to quantify the effects of interaction region elements modification on the beam-induced background fluxes and composition. An advanced simulation tool, based on the LineBuilder and Fluka programs, has been developed to produce beam-induced background events and to study their characteristics when the interaction region active and passive elements are changed. The tool characteristics, as well as the performance against previous simulations are presented together with the feature that allows to deeply study the beam-induced background point of origin.
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