Neutron Interactions in GRETINA

GRETINA is a high-resolution γ-ray spectrometer consisting of segmented germanium crystal detectors that are subject to high-energy neutron damage via the destruction of the crystal lattice structure. Recently, GRETINA was used in a (t, ³He + γ) probe of the 86Kr nucleus, where a triton beam was accelerated towards Krypton gas cell, contained within two Kapton foils (C₂₂H₁₀N₂O₅) . t(p,n)³He events from interactions with Hydrogen in the Kapton foil were isolated to study the interactions of neutrons in GRETINA. Neutron-induced peaks and other phenomena were identified in the measured spectra from neutron events in the Germanium crystals. These experimental results will be compared to Geant4 simulations to study the efficacy of simulations to replicate neutron interactions in GRETINA.