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

被引：21

作者：

Sidletskiy, O. ^{[1
]}

Lebbou, K. ^{[2
]}

Kofanov, D. ^{[1
]}

Kononets, V. ^{[1
]}

Gerasymov, Ia. ^{[1
]}

Bouaita, R. ^{[2
]}

Jary, V. ^{[3
]}

Kucerkova, R. ^{[3
]}

Nikl, M. ^{[3
]}

Polesel, A. ^{[4
]}

Pauwels, K. ^{[4
,5
]}

Auffray, E. ^{[4
]}

机构：

[1] NAS Ukraine, Inst Scintillat Mat, 60 Nauky Ave, UA-61072 Kharkov, Ukraine

[2] Univ Claude Bernard Lyon 1, Univ Lyon, UMR 5306, Inst Lumiere Mat, F-69100 Villeurbanne, France

[3] Acad Sci Czech Republ, Inst Phys, Cukrovarnicka Str 10, Prague 16200, Czech Republic

[4] European Org Nucl Res, Geneva 23, Switzerland

[5] European Synchrotron Radiat Facil, 71 Ave Martyrs, F-38043 Grenoble, France

来源：

CRYSTENGCOMM | 2019年 / 21卷 / 11期

基金：

欧盟地平线“2020”;

关键词：

GROWTH;

D O I：

10.1039/c8ce01781f

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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.

引用

页码：1728 / 1733

页数：6