Speaker
Description
High flux CZT detectors show peculiar physical properties that enable several applications in hard X-ray energy range . However, the particular electronic structure of high flux crystals requires a dedicate contact technology. In this work, we describe the technology improvements carried out on the preparation of high quality contacts, as well as several experiments that show the high homogeneity of the material and the high-flux performances. Also, we will show advanced CZT linear array detectors featuring sub-keV energy resolution, fabricated using high-flux HF-CZT material. These devices, specifically optimized for energy-resolved X-ray imaging, achieve a spatial resolution of 500 μm and an energy resolution better than 0.6 keV FWHM at 60 keV, enabling highly accurate spectral discrimination. These activities work were supported by the Italian Ministry for University and Research (MUR), under PRIN 2022 and PRIN 2022-PNRR projects (CUPs: B53D23004720006; B53D23024100001; B53D23004710006; B53D23008550006) and by the ASI contract n. 2023-22-U.0, CUP: C33C23000620005.