Fast Neutron Computed Tomography Early Results

Abstract

Computed tomography (CT) using penetrating radiation is a non-intrusive, non-destructive testing (NDT) phase distribution measurement technique growing in popularity in recent years. In this paper, relevant theory for a fast neutron computed tomography (FNCT) system is outlined. Monte Carlo simulations indicate that phase distribution information in a CANDU channel can be obtained with high contrast and resolution using FNCT. The effect of detector geometry and the number of angular projections on image resolution were explored and the optimal values determined. Ongoing development efforts and early stage results will be presented.