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Issue 11, 2019
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Progress in fabrication of long transparent YAG:Ce and YAG:Ce,Mg single crystalline fibers for HEP applications

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Abstract

A significant enhancement in the light attenuation length in 22 cm long YAG:Ce and YAG:Ce,Mg fibers grown by the micro-pulling-down method has been reported. This progress has been achieved by the introduction of Al excess into the melt, optimization of thermal conditions of crystallization and post growth annealing. Attenuation length clearly correlates with surface roughness of the fibers. Al excess addition over the stoichiometric composition enhances the fiber surface smoothness. An increase in axial thermal gradient and melt pressure in the crucible capillary die improves the crystallization process stability. Mg codoping provides a Ce3+ scintillation decay time decrease down to 80 ns.

Graphical abstract: Progress in fabrication of long transparent YAG:Ce and YAG:Ce,Mg single crystalline fibers for HEP applications

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Publication details

The article was received on 17 Oct 2018, accepted on 08 Jan 2019 and first published on 11 Jan 2019


Article type: Paper
DOI: 10.1039/C8CE01781F
Citation: CrystEngComm, 2019,21, 1728-1733

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    Progress in fabrication of long transparent YAG:Ce and YAG:Ce,Mg single crystalline fibers for HEP applications

    O. Sidletskiy, K. Lebbou, D. Kofanov, V. Kononets, Ia. Gerasymov, R. Bouaita, V. Jary, R. Kucerkova, M. Nikl, A. Polesel, K. Pauwels and E. Auffray, CrystEngComm, 2019, 21, 1728
    DOI: 10.1039/C8CE01781F

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