Crystal growth and characterization of (NaxCa 1-2xLux)F2 single crystals

Yuki Furuya, Hidehiko Tanaka, Kentaro Fukuda, Noriaki Kawaguchi, Yuui Yokota, Takayuki Yanagida, Valery Chani, Martin Nikl, Akira Yoshikawa

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

(NaxCa1-2xLux)F2 (x=1/6, 1/4, 1/3) and (NaxCa1-x-yLuy-0.05Ce 0.05)F2y-x (x=0.32, y=0.43) single crystals were grown from the melt using the precise atmosphere controlled type Micro-Pulling-Down (μ-PD) method to investigate their potential as a host material of scintillators. The grown crystals were of single-phase with fluorite-type structure (Fm-3m, Z=4) as confirmed by XRD. The crystals demonstrated 6090% transmittance above 200 nm wavelength and their absorption edges were approximately 145155 nm. Their densities were 4.55.3 g/cm3, and their effective atomic numbers were 56.761.4. Ce doped sample demonstrated better scintillation properties compared to Ce doped CaF2, such as higher light yield and shorter decay time.

Original languageEnglish
Pages (from-to)63-68
Number of pages6
JournalJournal of Crystal Growth
Volume320
Issue number1
DOIs
Publication statusPublished - 2011 Apr 1

Keywords

  • A1. Radiation
  • A2. Growth from melt
  • A2. Micro-Pulling-Down method
  • A2. Single crystal growth
  • B2. Optical material
  • B3. Scintillators

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Inorganic Chemistry
  • Materials Chemistry

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