Scintillation properties of Ce-doped LuLiF4 and LuScBO 3

Takayuki Yanagida, Yutaka Fujimoto, Noriaki Kawaguchi, Yuui Yokota, Kei Kamada, Daisuke Totsuka, Shun Ichi Hatamoto, Akira Yoshikawa, Valery Chani

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

The crystals of 1 mol% Ce-doped LuLiF4 (Ce:LLF) grown by the micro-pulling down (μ-PD) method and 1 mol% Ce-doped LuScBO3 (Ce:LSBO) grown by the conventional Czochralski (Cz) method were examined for their scintillation properties. Ce:LLF and Ce:LSBO demonstrated ∼80% transparency at wavelengths longer than 300 and 400 nm, respectively. When excited by 241Am α-ray to obtain radioactive luminescence spectra, Ce3 5d4f emission peaks were detected at around 320 nm for Ce:LLF and at around 380 nm for Ce:LSBO. In Ce:LSBO, the host luminescence was also observed at 260 nm. By recording pulse height spectra under γ-ray irradiation, the absolute light yield of Ce:LLF and Ce:LSBO was measured to be 3600±400 and 4200±400 ph/MeV, respectively. Decay time kinetics was also investigated using a pulse X-ray equipped streak camera system. The main component of Ce:LLF was ∼320 ns and that of Ce:LSBO was ∼31 ns. In addition, the light yield non-proportionality and energy resolution against the γ-ray energy were evaluated.

Original languageEnglish
Pages (from-to)251-255
Number of pages5
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume652
Issue number1
DOIs
Publication statusPublished - 2011 Oct 1

Keywords

  • Ce
  • Gamma-rays
  • LuLiF
  • LuScBO
  • Scintillator

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

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