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- Title
Window-Based Energy Selecting X-ray Imaging and Charge Sharing in Cadmium Zinc Telluride Linear Array Detectors for Contaminant Detection.
- Authors
Buttacavoli, Antonino; Principato, Fabio; Gerardi, Gaetano; Cascio, Donato; Raso, Giuseppe; Bettelli, Manuele; Zappettini, Andrea; Taormina, Vincenzo; Abbene, Leonardo
- Abstract
The spectroscopic and imaging performance of energy-resolved photon counting detectors, based on new sub-millimetre boron oxide encapsulated vertical Bridgman cadmium zinc telluride linear arrays, are presented in this work. The activities are in the framework of the AVATAR X project, planning the development of X-ray scanners for contaminant detection in food industry. The detectors, characterized by high spatial (250 µm) and energy (<3 keV) resolution, allow spectral X-ray imaging with interesting image quality improvements. The effects of charge sharing and energy-resolved techniques on contrast-to-noise ratio (CNR) enhancements are investigated. The benefits of a new energy-resolved X-ray imaging approach, termed window-based energy selecting, in the detection of low- and high-density contaminants are also shown.
- Subjects
X-ray imaging; PHOTON counting; DETECTORS; CADMIUM zinc telluride; ZINC telluride; PHOTON detectors; SPECTROSCOPIC imaging; SPECTRAL imaging
- Publication
Sensors (14248220), 2023, Vol 23, Issue 6, p3196
- ISSN
1424-8220
- Publication type
Article
- DOI
10.3390/s23063196