Crystal growth and scintillation properties of Er-doped Lu 3Al 5O 12 single crystals

Makoto Sugiyama, Yutaka Fujimoto, Takayuki Yanagida, Daisuke Totsuka, Shunsuke Kurosawa, Yoshisuke Futami, Yui Yokota, Valery Chani, Akira Yoshikawa

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

Er-doped Lu 3Al 5O 12 (Er:LuAG) single crystalline scintillators with different Er concentrations of 0.1, 0.5, 1, and 3% were grown by the micro-pulling-down (μ-PD) method. The grown crystals were composed of single-phase material, as demonstrated by powder X-ray diffraction (XRD). The radioluminescence spectra measured under 241Am α-ray excitation indicated host emission at approximately 350 nm and Er 3 4f4f emissions. According to the pulse height spectra recorded under γ-ray irradiation, the 0.5% Er:LuAG exhibited the highest peak channel among the samples. The γ-ray excited decay time profiles were well fitted by the two-component exponential approximation (0.8 μs and 610 μs).

Original languageEnglish
Pages (from-to)127-131
Number of pages5
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume664
Issue number1
DOIs
Publication statusPublished - 2012 Feb 1

Keywords

  • Er
  • LuAG
  • Scintillator

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

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