Forward physics with the ATLAS detector: Design of radiation resistant descendant of the ALFA detector, detector AFP

Forward detectors of high energy collider experiments allow to tag and measure remnants of a colliding particle moving in a very forward direction that are of interest e.g. for measurements of diffractive processes, where one or both colliding particles are not dissociated and continue in the forward direction. Ever increasing luminosity in collider experiments leads to increased pileup of interactions and a time-of-flight system is necessary for forward detectors in order to determine the primary interaction vertex of recorded particles. The presented work introduces the ATLAS experiment, its forward detectors and selected topics of forward physics, summarizes author's work on simulation of the ATLAS forward detectors and documents authors contribution to the development of AFP time-of-flight system with sub-30 ps time resolution.