Luminescence and scintillation properties of Ce3+-doped SiO2–Al2O3–BaF2–Gd2O3 glasses

Weerapong Chewpraditkul, Nakarin Pattanaboonmee, Nattasuda Yawai, Warut Chewpraditkul, Prapon Lertloypanyachai, Krittiya Sreebunpeng, Masao Yoshino, Liwan Liu, Danping Chen

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Ce3+-doped glasses with composition of (65-x)SiO2 − 20Al2O3 –15BaF2 -xGd2O3 (x = 5, 10, 15, 20 and 25) were synthesized under CO atmosphere by melt-quenching method. The photoluminescence (PL) emission due to Ce3+: 5d1 → 4f transition was red-shifted with increasing Gd2O3 content. The acceleration of PL decay was observed with increasing Gd2O3 content. The scintillation efficiency of about 100% of the Bi4Ge3O12 scintillator was obtained for a 10%Gd2O3 containing glass while a high light yield (LY) of 2050 photons/MeV and energy resolution of 15.8% at 662 keV γ rays was obtained for a 15%Gd2O3 containing glass. The integrating-time dependence of LY value and LY ratio (α/γ ratio) under excitation with α- and γ-rays were also measured.

Original languageEnglish
Article number109468
JournalOptical Materials
Volume98
DOIs
Publication statusPublished - 2019 Dec

Keywords

  • Ce
  • Gd
  • Light yield
  • Luminescence
  • Scintillating glass

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Computer Science(all)
  • Atomic and Molecular Physics, and Optics
  • Spectroscopy
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry
  • Electrical and Electronic Engineering

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