Scintillation event imaging with a single photon avalanche diode camera.

Autor: Bocchieri A; Department of Computer Sciences, University of Wisconsin - Madison, Madison, WI, USA. alexb826@gmail.com., Charbon E; Advanced Quantum Architecture Laboratory (AQUA), Swiss Federal Institute of Technology Lausanne (EPFL), Neuchâtel, Switzerland., Velten A; Department of Biostatistics and Medical Informatics, University of Wisconsin - Madison, Madison, WI, USA. velten@wisc.edu.; Department of Electrical and Computer Engineering, University of Wisconsin - Madison, Madison, WI, USA. velten@wisc.edu.
Jazyk: angličtina
Zdroj: Communications engineering [Commun Eng] 2024 Sep 18; Vol. 3 (1), pp. 135. Date of Electronic Publication: 2024 Sep 18.
DOI: 10.1038/s44172-024-00281-6
Abstrakt: Position and time measurements of scintillation events encode information about the radiation source. Single photon avalanche diode (SPAD) arrays offer multiple-megapixel spatial resolution and tens of picoseconds temporal resolution for detecting single photons. Current lensless designs for measuring scintillation events use sensors that are lower in spatial resolution. Camera-based designs use sensors that are lower in temporal resolution or readout rate and cannot image individual interactions. Here we propose to image scintillation events in a thick, monolithic scintillator using a high-resolution SPAD camera. We demonstrate that a commercial SPAD camera is able to gather sufficient signal to image individual scintillation events and observe 3D shifts in their spatial distribution. Simulations show that a SPAD camera can localize individual scintillation events in 3D. We report direct imaging of gamma-ray interactions in a scintillator with a SPAD camera. The proposed design may allow to measure complex signatures of individual particles interacting in the scintillator.
(© 2024. The Author(s).)
Databáze: MEDLINE
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