Luminescence and scintillation characteristics of Gd3Al 2Ga3O12:Ce3+ scintillators

Ongsa Sakthong, Weerapong Chewpraditkul, Chalerm Wanarak, Jan Pejchal, Kei Kamada, Akira Yoshikawa, Gian Paolo Pazzi, Martin Nikl

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)

Abstract

Cerium-doped Gd3Al2Ga3O12 single crystals were grown by the Czochralski method with 1 at.% cerium. Absorption, luminescence and scintillation characteristics were investigated. The light yield and energy resolution were measured under 662 keV γ-ray excitation. The characteristic emission band of Ce3+ 5d-4f transition peaking around 525 nm was observed in the photoluminescence of Gd 3Al2Ga3O12:Ce. The light yield of 56,100 ph/MeV and energy resolution of 6.8% were obtained for a 5 × 5 × 1 mm3 Gd3Al2Ga3O 12:Ce sample. The light yield dependence on the sample height and on the shaping time was also studied and compared with Lu3Al 5O12:Ce crystal.

Original languageEnglish
Pages (from-to)568-571
Number of pages4
JournalOptical Materials
Volume36
Issue number2
DOIs
Publication statusPublished - 2013 Dec

Keywords

  • Light yield
  • Luminescence
  • Scintillation detectors

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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