Crystal growth and scintillation characteristics of the Nd3+ doped LiLuF4 single crystals

Kentaro Fukuda, Noriaki Kawaguchi, Sumito Ishizu, Tomohito Nagami, Toshihisa Suyama, Takayuki Yanagida, Yuui Yokota, Martin Nikl, Akira Yoshikawa

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

Sixty millimeter diameter single crystal of Nd3+ doped LiLuF4 was successfully grown by the Czochralski technique. No remarkable absorption due to unfavorable impurities was observed from optical absorption measurements in the vacuum ultra-violet spectral region. The high crystallinity and homogeneous luminescence characteristics were found from X-ray rocking curve and cathode-ray luminescence respectively. X-ray excited luminescence spectrum was measured and the significant 4f25d-4f 3 luminescence at 182 nm was observed in the grown crystal. The pulse height spectrum was taken upon γ-ray irradiation. As a result, the grown crystals demonstrated sufficient response to the γ-ray showing the light yield of 420 ± 30 photons/MeV. The decay curve under α-ray irradiation was also investigated and described by two component decay kinetics which consists of the decay constants of 34 and 450 ns.

Original languageEnglish
Pages (from-to)924-927
Number of pages4
JournalOptical Materials
Volume33
Issue number6
DOIs
Publication statusPublished - 2011 Apr

Keywords

  • Crystal growth from the melt
  • Fluoride
  • Scintillator
  • Single crystal
  • VUV

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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