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| Format: | Recurso digital |
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Zenodo
2025
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| Online Access: | https://doi.org/10.5281/zenodo.15524757 |
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Table of Contents:
- <p><span>This study explores fast-timing garnet scintillators as potential candidates for future high-energy physics detectors. Sc-codoped YAG:Ce crystals were successfully grown for the first time using the Czochralski method in a reducing atmosphere from tungsten crucibles. Scintillation decay times were accelerated through codoping of Y₃Al₅O₁₂:Ce (YAG:Ce) with Sc³⁺ and divalent alkaline earth metal cations (Ca²⁺, Mg²⁺). The resulting Y₃(Al<sub>1-x</sub>Sc<sub>x</sub>)<sub>5</sub>O<sub>12</sub>:Ce exhibited a decay time of 21 ns and a high light yield of 14,000 ph/MeV, making it a strong candidate for future detectors at the HL-LHC, where particle collisions occur every 25 ns. The study also examines correlations between cation substitutions and the optical and scintillation performance of Ce-doped Al<sup>3+</sup>/Sc<sup>3+</sup>-substituted garnets, comparing them with known Sc-containing garnets.</span></p>