Kaleidoscopic Scintillation Event Imaging
Alex Bocchieri, John Mamish, David Appleyard, Andreas Velten

TL;DR
This paper introduces a kaleidoscopic scintillator design that enhances light collection for single-photon cameras, enabling high-resolution imaging of individual high-energy particle events with improved spatial accuracy.
Contribution
It proposes a novel kaleidoscopic geometry for scintillators that increases light collection while maintaining spatial information, along with a theoretical framework and algorithm for 3D event localization.
Findings
Kaleidoscopic scintillator improves light collection efficiency.
Enables high-resolution imaging of individual particle events.
Compatible with commercial CMOS single-photon cameras.
Abstract
Scintillators are transparent materials that interact with high-energy particles and emit visible light as a result. They are used in state of the art methods of measuring high-energy particles and radiation sources. Most existing methods use fast single-pixel detectors to detect and time scintillation events. Cameras provide spatial resolution but can only capture an average over many events, making it difficult to image the events associated with an individual particle. Emerging single-photon avalanche diode cameras combine speed and spatial resolution to enable capturing images of individual events. This allows us to use machine vision techniques to analyze events, enabling new types of detectors. The main challenge is the very low brightness of the events. Techniques have to work with a very limited number of photons. We propose a kaleidoscopic scintillator to increase light…
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Taxonomy
TopicsRadiation Detection and Scintillator Technologies · Particle Detector Development and Performance · Medical Imaging Techniques and Applications
