Feasibility of Double-Sided Silicon-Photodetector-based X-ray and Neutron Simultaneously Detectable Radiation Imaging Module

Current combined X-ray and neutron radiation imaging equipment comprises two separate radiation generators and two imaging systems and uses a single-side silicon photodetector for radiation detection. If two radiation generators and two imaging modules are merged into one generator and one imaging system, a cost-efficient and lightweight portable multi-radiation security inspection system can be developed. This study describes the development and feasibility test of a double-sided silicon-photodetector-based X-ray and neutron simultaneous X-ray and neutron detecting radiation sensor module for an X-ray and neutron merged imaging system. The feasibility of this developed radiation sensor module was confirmed using X-ray transmission and a 14-MeV neutron irradiation test. Our results confirm the successful combination of two radiation generators and two imaging modules into one generator and one imaging system, which can help in implementing a cost-efficient and lightweight portable multi-radiation security inspection.