Light yield of (Lu, Y, Gd)3Al2Ga3O 12:Ce garnets

P. Prusa, K. Kamada, M. Nikl, A. Yoshikawa, J. A. Mares

Research output: Contribution to journalArticlepeer-review

24 Citations (Scopus)

Abstract

Two sets of Ce-doped multicomponent garnet scintillator samples were prepared using Czochralski method. Best performing sample from the first group was Gd3Al2Ga3O12 doped by 1% of Ce. Therefore, samples of Gd3Al2Ga3O12 with different thickness have been prepared for the second set. Light yield, its dependence on amplifier shaping time, energy resolution, and non-proportionality have been measured using hybrid photomultiplier. Best performing sample exhibits following parameters: light yield of 50 600 photons/MeV, energy resolution of 5.5%@662 keV, fast scintillation component intensity 91%, and good proportionality. Performance of other samples was negatively affected presumably either by ionization of 5d1 excited state of Ce3+ center or electron traps.

Original languageEnglish
Pages (from-to)62-65
Number of pages4
JournalRadiation Measurements
Volume56
DOIs
Publication statusPublished - 2013 Mar 11

Keywords

  • Garnet
  • Hybrid photomultiplier
  • Light yield
  • Scintillator

ASJC Scopus subject areas

  • Radiation
  • Instrumentation

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