GERDA has been a pioneering experiment in the search for the still undetected neutrinoless double beta (0νββ) decay of⁷⁶Ge and will be even surpassed by its successor experiment LEGEND. The discovery of this extremely rare process would verify the theory of neutrinos being Majorana particles and that at least one of the neutrino masses has to be non-zero [1]. In addition, this process violates the lepton number by 2 which gives rise to explanations regarding the matter-antimatter asymmetry in the universe by leptogenesis. For an explicit identification of a signal caused by the 0νββ decay, which corresponds to an energy of 2039keV for⁷⁶Ge, a precise understanding of the background contributions in the region of interest (ROI) is crucial. Previous experiments indicated γ rays, produced by neutron activation (n,p) and neutron scattering (n,n’) processes on⁷⁶Ge and⁷⁴Ge but until now, no significant indications for their existence were found. In order to confirm the existence of the γ rays, a Ge sample enriched in⁷⁶Ge is alternately irradiated by neutrons from a deuterium tritium (DT) generator and measured by a high-purity germanium (HPGe) detector. The present work describes the experimental procedure and the preliminary analysis of a reference sample consisting of natural Ge.