Title :
Relationship between Ca2+ concentration and the properties of codoped GGAG:Ce scintillators
Author :
Fang Meng;Merry Koschan;Yuntao Wu;Charles L. Melcher;Peter Cohen
Author_Institution :
Scintillation Materials Research Center and Department of Materials Science and Engineering, University of Tennessee, Knoxville, 37996 USA
Abstract :
Codoping is a method of current interest for modifying the properties of scintillators. The study reported here explores the effect of codoping on cerium doped Gd3Ga3Al2O12 (GGAG:Ce) crystals with various concentrations of Ca. These single crystals were grown via the Czochralski technique with Ce concentrations fixed at 0.2 at% and Ca concentrations ranging from 0.1 at% to 0.4 at% in the initial melt. The relationship between dopant concentration and light yield and scintillation decay times was determined.
Keywords :
"Crystals","Energy resolution","Kinetic theory","Photonics","Barium","Biomedical optical imaging","Optical imaging"
Conference_Titel :
Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC), 2014 IEEE
DOI :
10.1109/NSSMIC.2014.7431229
