Crystal growth of Eu:SrI2 single crystals by micro-pulling-down method and the scintillation properties

Yuui Yokota, Kei Nishimoto, Shunsuke Kurosawa, Daisuke Totsuka, Akira Yoshikawa

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)

Abstract

Undoped and Eu doped SrI2 (Eu:SrI2) single crystals were grown by the modified micro-pulling-down (μ-PD) method and their scintillation properties were investigated. Undoped and Eu:SrI2 single crystals with Eu 1%, 2%, 3% and 5% concentrations were obtained by the modified μ-PD method with the removable chamber system and their crystals with approximately 2 mm diameter and 2-3 cm length indicated high transparency. Powder X-ray diffraction patterns of grown Eu:SrI2 crystals revealed that the Eu:SrI2 crystals had a single phase of SrI2 structure and similar lattice parameters regardless of Eu concentrations. In the X-ray radioluminescence spectrum of Eu:SrI2 crystal, the emission peak around 430 nm which was due to the 5d-4f transition of Eu2+ ion was observed. Light yields, energy resolutions and decay times of grown Eu:SrI2 crystals irradiated under γ-ray were evaluated.

Original languageEnglish
Pages (from-to)49-52
Number of pages4
JournalJournal of Crystal Growth
Volume375
DOIs
Publication statusPublished - 2013 May 20

Keywords

  • A1. Single crystal growth
  • A2. Growth from melt
  • B1. Halides
  • B3. Scintillators

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Inorganic Chemistry
  • Materials Chemistry

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