The structure of neutron-rich nuclei is not well known. The spectroscopy of exotic nuclei provides a stringent constrain on microscopic nucleon-nucleon interactions. In this context, we are developing a silicon vertex combined with a liquid hydrogen target for in-beam experiments in inverse kinematics at the Radioactive Isotope Beam Factory (RIBF) of RIKEN, Japan. The tracker will allow to perform the missing mass spectroscopy of radioactive nuclei produced from quasi free scattering (p,2p). The best resolution is obtained if the relative detector position is known at an accuracy of 100 microns. During the thesis, realistic simulations of experiments with STRASSE will be performed. An optimisation algorithm to find the offset of detectors based on the simulated data will be developed and implemented. The best achievable alignment will be investigated and its effect on the invariant mass resolution quantified.