Eu concentration dependence on scintillation properties of Eu doped SrI2 single crystals grown by modified micro-pulling-down method

Kei Nishimoto, Yuui Yokota, Shunsuke Kurosawa, Kei Kamada, Akihiro Ymaji, Akira Yoshikawa

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Eu doped SrI2 (Eu:SrI2) single crystals with various Eu contents were grown by a modified micro-pulling-down (μ-PD) method and effects of Eu concentration on scintillation properties were investigated. Eu 1%, 5%, 7.5%, 10% and 15%:SrI2 single crystals were obtained and all as-grown crystals indicated high transparency without visible inclusion. Actual Eu contents in the grown crystals were almost same as nominal compositions. In the X-ray radioluminescence spectra, emission peaks around 435 nm were observed in all crystals. Eu7.5 mol%:SrI2 crystals indicated the highest light yield, 78,000 ph/MeV, and the smallest energy resolution, 3.7%.

Original languageEnglish
Pages (from-to)1946-1949
Number of pages4
JournalOptical Materials
Volume36
Issue number12
DOIs
Publication statusPublished - 2014 Oct

Keywords

  • Eu concentration
  • Halide material
  • Light yield
  • Scintillator
  • SrI2 single crystal

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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