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

0507925 - FZÚ 2020 RIV GB eng J - Journal Article
Sidletskiy, O. - Lebbou, K. - Kofanov, D. - Kononets, V. - Gerasymov, I. - Bouaita, R. - Jarý, Vítězslav - Kučerková, Romana - Nikl, Martin - Polesel, A. - Pauwels, K. - Auffray, E.
Progress in fabrication of long transparent YAG:Ce and YAG:Ce,Mg single crystalline fibers for HEP applications.
CrystEngComm. Roč. 21, č. 11 (2019), s. 1728-1733. ISSN 1466-8033
EU Projects: European Commission(XE) 644260 - INTELUM
Grant - others:AV ČR(CZ) NAS-17-04
Program: Bilaterální spolupráce
Institutional support: RVO:68378271
Keywords : YAG:Ce * YAG:Ce,Mg * fibers grown * micro-pulling-down method
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 3.117, year: 2019
Method of publishing: Limited access
https://doi.org/10.1039/c8ce01781f

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.
Permanent Link: http://hdl.handle.net/11104/0298889