Comparison of absorption, luminescence and scintillation characteristics in Lu1.95Y0.05SiO5:Ce,Ca and Y 2SiO5:Ce scintillators
Journal article
Authors/Editors
Strategic Research Themes
No matching items found.
Publication Details
Author list: Chewpraditkul W., Wanarak C., Szczesniak T., Moszynski M., Jary V., Beitlerova A., Nikl M.
Publisher: Elsevier
Publication year: 2013
Journal: Optical Materials (0925-3467)
Volume number: 35
Issue number: 9
Start page: 1679
End page: 1684
Number of pages: 6
ISSN: 0925-3467
eISSN: 1873-1252
Languages: English-Great Britain (EN-GB)
View in Web of Science | View on publisher site | View citing articles in Web of Science
Abstract
The absorption, luminescence and scintillation characteristics of Y 2SiO5:Ce (YSO:Ce) scintillator were investigated and compared to those of Lu1.95Y0.05SiO5:Ce,Ca (LYSO:Ce,Ca) scintillator. Due to the Ca2+ co-doping in LYSO:Ce quantified by GDMS analysis, the Ce4+ center is evidenced in the absorption spectra. For 662 keV γ-rays (137Cs source), YSO:Ce shows a light yield of 15,300 ph/MeV, which is much lower than that of 32,000 ph/MeV obtained for LYSO:Ce,Ca. The coincidence timing resolution for 511 keV annihilation quanta of 234 and 478 ps was obtained, respectively, for LYSO:Ce,Ca and YSO:Ce detectors in coincidence experiment using a BaF2-based detector. Time resolution was also discussed in terms of a number of photoelectrons and decay time of the scintillation pulse. © 2013 Elsevier B.V. All rights reserved.
Keywords
Ce4+ center, LYSO:Ce,Ca
Contact Information