Development of a TLM to investigate the effect of a resistive interface in digital flat panel x-ray detectors

Noxel flat panel X-ray detector (FPD) technologies are currently under development for advanced medical imaging applications. A typical detector consists of a method to detect X-rays, convert absorbed X-ray energy to charge, and perform readout of charge. New designs are increasingly complex and often require additional materials to enhance charge transport or structural properties of the detector. A resistive interface layer (RIL) may be used to perform any of these functional roles and its impact on FPD performance was investigated. In this work, we developed a transmission line model (TLM) to investigate the effect of RIL thickness and resistivity on charge transport and image quality of a FPD.