Monte Carlo and experimental analysis of a novel directional rotating scatter mask gamma detection system

摘要

For such diverse applications as on-site radiation monitoring, treaty or material verification, cargo monitoring during transport, and orphan source location a radioactive source localization system is of great use. The Rotating Scatter Mask (RSM) detection system, a rapid scatter mask retrofit to a conventional radiation detector, provides a low-cost, large field of view and energy range solution to this problem. This work demonstrates successful experimental operation of a prototype system to identify source direction which was modeled using a library of signals simulated using GEANT and a novel algorithm, validated by comparing results with MCNP and experiment.