Growth and scintillation performances of SrI2:Eu with low activator concentration

A. Smerechuk 1 E. Galenin 1 V. Nesterkina 1 O. Sidletskiy 1 C. Dujardin 2
1 Institute for Scintillation Materials of NASU
2 ILM - Institut Lumière Matière [Villeurbanne]
Abstract : SrI2:Eu crystals with the activator content of 0.1–5.5% were grown by the Bridgman-Stockbarger technique. The dependences of light yield, energy resolution, optical and luminescent properties on the Eu concentration have been studied. It has been shown that with a decrease in the amount of activator to 0.3% Eu, the energy resolution at 662 keV remains below 4%. The light yield gradually diminishes with decreasing Eu concentration. This makes it possible to revise the required amount of the expensive activator for growing high performance SrI2:Eu crystals. Scintillation parameters of crystals grown by the Czochralski and Bridgman-Stockbarger technique have been compared.
Keywords : A1 Doping A2 Single crystal growth A2 Bridgman technique B1 Halides Scintillator materials
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Journal articles
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https://hal-univ-lyon1.archives-ouvertes.fr/hal-02363597
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Submitted on : Thursday, November 14, 2019 - 2:56:49 PM
Last modification on : Tuesday, November 19, 2019 - 2:37:31 AM

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A. Smerechuk, E. Galenin, V. Nesterkina, O. Sidletskiy, C. Dujardin. Growth and scintillation performances of SrI2:Eu with low activator concentration. Journal of Crystal Growth, Elsevier, 2019, 521, pp.41-45. ⟨10.1016/j.jcrysgro.2019.05.031⟩. ⟨hal-02363597⟩

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