Thallium Strontium Iodide: A High Efficiency Scintillator for Gamma-ray Detection
Rastgo Hawrami, Elsa Ariesanti
TL;DR
This paper introduces europium-doped TlSr2I5 as a new high-efficiency scintillator for gamma-ray detection, demonstrating excellent energy resolution and high light yield through crystal growth and characterization.
Contribution
It reports the synthesis and characterization of a novel europium-doped TlSr2I5 scintillator with superior gamma-ray detection performance.
Findings
Energy resolution < 3% at 662 keV
Gamma-ray light yield ~54,000 Ph/MeV
Decay times of 395 ns and 2.0 microseconds
Abstract
Europium-doped TlSr2I5 (TSI), a new high light yield scintillator for gamma-ray detection, has been grown by the vertical Bridgman method. A 12mm and 16mm diameter boules of TSI is grown in a two-zone vertical furnaces. Samples extracted from the grown boule have been characterized for their scintillation properties. Energy resolution of < 3% (FWHM) at 662 keV and a gamma-ray light yield of approximately 54,000 Ph/MeV have been obtained. Decay times of 395 ns (89%) and 2.0 microseconds (11%) have been measured.
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