Title :
Rare Earth Activated Oxyfluoride Glasses and Glass-Ceramics for Scintillation Applications
Author :
Rogulis, U. ; Elsts, E. ; Jansons, J. ; Sarakovskis, A. ; Doke, G. ; Stunda, A. ; Kundzins, K.
Author_Institution :
Inst. of Solid State Phys., Univ. of Latvia, Riga, Latvia
Abstract :
Oxyfluoride glasses 49SiO2·6Al2O3·24Li2O·20LaF3 activated with Tb, Ce, Eu have been synthesized and studied. After heating at 580°C and 750°C crystalline phases were obtained. The samples were studied by DTA (Differential thermal analyzer), CL (cathodoluminescence), XRD (X-ray diffraction), SEM (scanning electron microscope), EDS (energy dispersive x-ray spectroscopy) methods. We found out that presence of crystalline phase enhances the CL of Tb activated samples significantly; whereas, the shortest decay time of 0.29 μs has been observed for less intense Ce doped glass sample.
Keywords :
X-ray chemical analysis; aluminosilicate glasses; cathodoluminescence; cerium compounds; differential thermal analysis; europium compounds; glass ceramics; lanthanum compounds; lithium compounds; scanning electron microscopy; solid scintillation detectors; terbium compounds; Ce doped glass sample; SiO2-Al2O3-Li2O-LaF3; X-ray diffraction; cathodoluminescence; crystalline phase; decay time; differential thermal analyzer; energy dispersive X-ray spectroscopy; glass-ceramics; heating process; rare earth activated oxyfluoride glasses; scanning electron microscope; scintillation detector; temperature 580 degC; temperature 750 degC; Annealing; Ceramics; Glass; Heating; Luminescence; Scanning electron microscopy; X-ray scattering; Cathodoluminescence; decay times; glass; glass-ceramics;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.2012.2212724
