Scintillation properties of Gd3Al2Ga 3O12:Ce3+ single crystal scintillators

Ongsa Sakthong, Weerapong Chewpraditkul, Chalerm Wanarak, Kei Kamada, Akira Yoshikawa, Petr Prusa, Martin Nikl

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)

Abstract

The scintillation properties of Gd3Al2Ga 3O12:Ce3+ (GAGG:Ce) single crystals grown by the Czochralski method with 1 at% cerium in the melt were investigated and results were compared with so far published results in the literature. The light yield (LY) and energy resolution were measured using a XP5200B photomultiplier. Despite about twice higher LY for GAGG:Ce, the energy resolution is only slightly better than that of LuAG:Ce due to its worse intrinsic resolution and non-proportionality of LY. The LY dependences on the sample thickness and amplifier shaping time were measured. The estimated photofraction in pulse height spectra of 320 and 662 keV γ-rays and the total mass attenuation coefficient at 662 keV γ-rays were also determined and compared with the theoretical ones calculated using the WinXCom program.

Original languageEnglish
Pages (from-to)1-5
Number of pages5
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume751
DOIs
Publication statusPublished - 2014 Jul 1

Keywords

  • Energy resolution
  • GAGG:Ce
  • Light yield
  • Photofraction
  • Scintillation detectors

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

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