Compton Imaging with Scintillators in a Virtual Geant4 Space

Abstract: In this study the Geant4 toolkit has been used to perform Monte Carlo simulations of relatively inexpensive, inorganic, scintillator-based detectors. Full simulations of the optical photons produced via the scintillation process have been done in order to achieve realistic responses from the attached electro-optical sensors. The main focus of this work is on identifying interaction positions in scintillator bars from the readouts of the electro-optical sensors attached to them. A handful of configurations of electro-optical sensors have been simulated. Position accuracies down to approximately 8 mm, correspond- ing to 8% of the length of the scintillator bar, have been achieved in these simulations. Although the concept of the imaging algorithm described in section 5 is rather simple, it requires careful implementation. Due to time constraints this imaging is yet to be realised.