Development of a novel proton CT system using a 3D scintillator detector

The goal of this work is to develop a novel proton computed tomography (CT) system using a 3-dimensional (3D) scintillator detector. The detector design of the pCT system consists of a 3D scintillator that generates scintillation light in response to the incident proton beams. A scientific charge-coupled device (CCD) camera placed along the beam axis captures a 2D projection or radiograph of the resulting 3D scintillation light signal. A set of CCD cameras placed laterally to the beam axis capture two unique depth dose distributions of the beam. These additional beam images can be used to improve the resolution of the proton radiograph. In this study, we demonstrate the feasibility of this unique imaging system design for proton radiography using a 3D liquid scintillator detector.