Monte-Carlo Simulation for 3H(gamma, pn)n Experiment with High Intensity Gamma-ray Source (HIgammaS)

Experiment to measure the differential cross-section for photodisintegration of triton is being developed at Triangle Universities Nuclear Laboratory (TUNL). The goal of this experiment is to provide data for assessing the theoretical treatment of meson-exchange currents in photodisintegration of nuclei and for investigating long-range features of three-nucleon interactions. Measurements will be performed using a linearly polarized gamma-ray beam at the High Intensity Gamma-ray Source (HIgammaS) at TUNL. This thesis describes the Monte-Carlo simulation developed as a tool for aiding in the optimization of the experimental design and the data analysis software. The Monte-Carlo simulation is important for guiding the data acquisition strategy and interpretation of data. The simulation is based on the GEANT4 toolkit and theoretical cross-section predictions for current experimental setup.