Optical and scintillation properties of Ce-doped LuLiF4 with different Ce concentrations

Takayuki Yanagida, Yutaka Fujimoto, Kentaro Fukuda, Valery Chani

Research output: Contribution to journalArticlepeer-review

36 Citations (Scopus)

Abstract

The crystals of 0.1, 0.5, and 1 mol% Ce-doped LuLiF4 (Ce:LLF) grown by the micro-pulling down (μ-PD) method were examined for their optical and scintillation properties. Ce:LLF crystals had ~80% transparency at wavelengths longer than 300 nm. In photoluminescence spectra, they demonstrated intense emission peaks at 310 and 330 nm with the quantum yield of 60-90%. Ce3+ 5d-4f emission peaks were also detected at similar wavelengths of 310 and 330 nm in the radioluminescence spectra obtained under X-ray excitation. According to pulse height spectra recorded under γ-ray irradiation, the absolute light yield of Ce 0.1, 0.5, and 1% were 3600±400, 3000±300, and 1700±200 ph/MeV, respectively. Decay time kinetics was also inspected using a pulse X-ray equipped streak camera system. The decay time components of Ce:LLF were ∼70 ns and ∼1 μs for all the samples.

Original languageEnglish
Pages (from-to)58-63
Number of pages6
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume729
DOIs
Publication statusPublished - 2013
Externally publishedYes

Keywords

  • Ce
  • Gamma-rays
  • LuLiF
  • Scintillator

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

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