Characterization of Seamless CdTe Photon Counting X-Ray Detector

Spectrally selective X-ray imaging provides improved material and tissue discrimination in comparison with the state-of-the-art dual energy technologies that are commonly used medical, industrial, security applications. Cadmium telluride (CdTe)- cadmium zinc (CdZnTe)-based line scanners small size two-dimensional sensors emerging to market, but need for large-scale panels is axiomatic. In this study, a seamless CdTe tile was developed enables implementation of large-sized, detector panels. The consists $64\times64$ pixel array (with $150~\mu \text{m}$ pitch) necessary substrate, ASIC, crystal. performance constructed characterized by focusing on spectral resolution stability. addition, simple trimming method automates equalization each analyzed. obtained results suggest proposed concept (tileable) structures feasible approach scale up panel sizes. shows comparable stability commercial sensors. effect variation, realization panel, as well charge sharing were left out scope be studied next phase.