10.18453/rosdok_id00002494 Beck, Mario Mario Beck http://d-nb.info/gnd/1190900610 Universität Rostock 2018 530 Physics 621.3 Electrical Engineering, Electronics 2018 en http://purl.uni-rostock.de/rosdok/id00002494 urn:nbn:de:gbv:28-rosdok_id00002494-2 Intensity-driven beam instabilities are studied in simulations with a refined impedance model and in experimental measurements for this thesis. The High Luminosity Large Hadron Collider (HL-LHC) project at CERN aims for an increase in the integrated luminosity in the Large Hadron Collider (LHC). To achieve this goal the LHC injector chain has to be upgraded. The last LHC injector, the Super Proton Synchrotron (SPS), intends to accelerate beams with twice the present intensity.