Growth of GSAG:Ce scintillation crystals by the Bridgman method: influence of Ce concentration and codoping

Single crystals of Ce-doped gadolinium scandium aluminum garnet (Gd 3 Sc 2 Al 3 O 12 ; GSAG) with Ca 2+ , Mg 2+ and Li + co-dopants were grown by the Bridgman method. Regardless of melt composition, crystals tend to grow close to the congruent composition. Introduction of Ca 2+ or Mg 2+ , as in othe...

Full description

Saved in:
Bibliographic Details
Published in:CrystEngComm 2024-09, Vol.26 (35), p.4812-4819
Main Authors: Hovhannesyan, K. L., Derdzyan, M. V., Badalyan, G., Kharatyan, G., Pejchal, J., Nikl, M., Dujardin, C., Petrosyan, A. G.
Format: Article
Language:English
Subjects:
Afterglows
Bridgman method
Calcium ions
Cerium
Codopants
Composition
Crystal growth
Doping
Gadolinium
Garnets
Physics
Scandium
Scintillation
Single crystals
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Single crystals of Ce-doped gadolinium scandium aluminum garnet (Gd 3 Sc 2 Al 3 O 12 ; GSAG) with Ca 2+ , Mg 2+ and Li + co-dopants were grown by the Bridgman method. Regardless of melt composition, crystals tend to grow close to the congruent composition. Introduction of Ca 2+ or Mg 2+ , as in other Ce-doped garnets, leads to an increase of absorption below 350 nm, which may indicate formation of Ce 4+ states, while no effect is seen with Li + co-doping. High Ce concentration and co-doping accelerate the scintillation rise and decay times; the codopants strongly significantly reduce the afterglow.
ISSN:1466-8033
1466-8033
DOI:10.1039/D4CE00599F