Crystal growth and scintillation properties of Ce and Eu doped LiSrAlF 6

Akihiro Yamaji, Takayuki Yanagida, Noriaki Kawaguchi, Yutaka Fujimoto, Yuui Yokota, Kenichi Watanabe, Atsushi Yamazaki, Akira Yoshikawa, Jan Pejchal

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

Ce and Eu doped LiSrAlF6 (LiSAF) single crystals for the neutron detection with different dopant concentrations were grown by the micro-pulling-down method (μ-PD). In Ce:LiSAF, intense emission peaks due to Ce3+ 5d4f transitions were observed at approximately 315 and 335 nm in photo- and α-ray induced radio-luminescence spectra. In case of Eu:LiSAFs, an intense emission peak at 375 nm due to Eu2+ 5d4f transition was observed in the radio-luminescence spectra. The pulse height spectra and decay time profiles were measured under 252Cf neutron irradiation to examine the neutron response. The Ce 3% and Eu 2% doped LiSAF showed the highest light yield of 2860 ph/n with 19 ns main decay time component and 24,000 ph/n with 1610 ns.

Original languageEnglish
Pages (from-to)368-372
Number of pages5
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume659
Issue number1
DOIs
Publication statusPublished - 2011 Dec 11

Keywords

  • LiSrAlF
  • Neutron
  • Scintillation detector
  • Scintillator
  • Single crystal

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

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