Scintillation and optical properties of Pb-doped YCa4O(BO 3)3 crystals

Yutaka Fujimoto, Takayuki Yanagida, Yuui Yokota, Noriaki Kawaguchi, Kentaro Fukuda, Daisuke Totsuka, Kenichi Watanabe, Atsushi Yamazaki, Valery Chani, Akira Yoshikawa

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


This communication reports optical properties and radiation responses of Pb2 0.5 and 1.0 mol%-doped YCa4O(BO3) 3 (YCOB) single crystals grown by the micro-pulling-down (μ-PD) method for neutron scintillator applications. The crystals had no impurity phases according to the results of X-ray powder diffraction. These Pb 2-doped crystals demonstrated blue-light luminescence at 330 nm because of Pb2 1S03P0,1 transition in the photoluminescence spectra. The main emission decay component was determined to be about 250260 ns under 260 nm excitation wavelength. When irradiated by a 252Cf source, the relative light yield of 0.5% Pb2-doped crystal was about 300 ph/n that was determined using the light yield of a reference Li-glass scintillator.

Original languageEnglish
Pages (from-to)238-241
Number of pages4
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Issue number1
Publication statusPublished - 2011 Oct 1


  • Lanthanide oxyborate
  • Micro-pulling-down (μ-PD)
  • Neutron scintillator
  • Pb S -P transition

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation


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