Abstract
This project is focused on the development of a hybrid pixel detector for X-ray spectral imaging applied to cultural heritage. The aim of this Project is the development and construction of a hybrid pixel detector for X-ray spectral imaging in the field of cultural heritage with performances beyond the state-of-the-art. This detector is based on the flip-chip bonding assembly of the Timepix4 ASIC to pixelated semiconductor sensors. The present Project will apply the Timepix4 ASIC technology to perform photon-counting energy-resolved X-ray imaging applied to cultural heritage, for the determination of the distribution of elements in artistic objects and manufacts. Expected results: If successful, the results of this Project will represent a major breakthrough in the field of cultural heritage non-destructive analysis. It will solve the problem of performing energy-resolved X-ray imaging using a standard (polychromatic) X-ray source, and will therefore allow a non-destructive and non-invasive inspection of a wide range of materials and objects of art. This analysis will be empowered by the single photon-counting capability of the Timepix4 ASIC, in combination with high-rate capability and the possibility to measure the energy of each individual X-ray photon interacting with the sensor (with 1 keV resolution), in addition to a time-stamping resolution of the order of 100 ps. Thanks to the detector system developed in this Project it will be possible to perform Multi Energy Computed Tomography (MECT) in an interval of photon energy previously not reachable. Benefits will be given mostly to material detection and classification purposes. Selection of the optimal energy band for material detection (enhanced contrast) and quasi-monochromatic CT with consequent typical polychromatic beam reconstruction artifacts removal from CT slices are main improvements given by single photon energy measurement.
Project details
Unibo Team Leader: Maria Pia Morigi
Unibo involved Department/s:
Dipartimento di Fisica e Astronomia "Augusto Righi"
Coordinator:
Università degli Studi di Ferrara - Amministrazione Centrale(Italy)
Total Unibo Contribution: Euro (EUR) 89.173,00
Project Duration in months: 24
Start Date:
28/09/2023
End Date:
28/02/2026
