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

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 has been achieved by the introduction of Al excess into the melt, optimization of thermal conditionы 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. Increase of axial thermal gradient and melt pressure in the crucible capillary die improves the crystallization process stability. Mg codoping provides the Сe3+ scintillation decay time decrease down to 80 ns.

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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, Accepted Manuscript
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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, I. Gerasymov, R. Bouaita, V. Jarý, R. Kucerkova, M. Nikl, A. Polesel, K. Pauwels and E. Auffray, CrystEngComm, 2019, Accepted Manuscript , DOI: 10.1039/C8CE01781F

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