Ce concentration dependence of optical and scintillation properties for Ce doped LiYF4 single crystals

Yuui Yokota, Takayuki Yanagida, Naoto Abe, Noriaki Kawaguchi, Kentaro Fukuda, Martin Nikl, Akira Yoshikawa

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)

Abstract

We have investigated effects of Ce concentration on optical and scintillation properties for Ce doped LiYF4 [Ce:LiYF4] single crystals. Li(Y1-x,Cex,)F4 single crystals with more than 75% transparency were grown by micro-pulling-down method in the range of O ≤ x ≤ 0.03 and the crystals with x = 0.05, 0.1 had milky parts originated from remained starting materials. Photoluminescence spectra of all Ce:LiYF4 crystals indicated two emission peaks from Ce3+ ion which was substituted for Y3+ ion site. Light yield and decay time of α-ray irradiation for Ce:LiYF4 crystals were largely affected by Ce concentration and the largest light yield was observed for the crystal with x = 0.02. In contrast, the decay time systematically became faster with an increase of Ce concentration.

Original languageEnglish
Article number5485071
Pages (from-to)1241-1244
Number of pages4
JournalIEEE Transactions on Nuclear Science
Volume57
Issue number3 PART 2
DOIs
Publication statusPublished - 2010 Jun

Keywords

  • Cerium
  • Crystal growth
  • Fluorine compounds
  • Neutron scintillator

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering
  • Electrical and Electronic Engineering

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