Development of novel scintillator crystals

Martin Nikl, Akira Yoshikawa, Anna Vedda, Tsuguo Fukuda

Research output: Contribution to journalArticlepeer-review

80 Citations (Scopus)

Abstract

Development, preparation and characterization of several new single-crystal scintillators based on binary and complex oxide or fluoride host crystals is reviewed. The micropulling-down technique was used to efficiently screen and optimize the material composition. The Czochralski technique was used to obtain large bulk single crystals with the ultimate scintillation performance. Yb-doped YAlO3 and Lu3Al5O12 were developed to obtain superfast scintillators at room temperature. They also present a unique material system with temperature-tuned scintillation response over the nanosecond time scale. Usage of ZnO single crystals for superfast scintillators is discussed. Several well-known garnet and silicate hosts were doped with Pr3+ to obtain faster-then-Ce3+ scintillators and their performance was tested. Two new concepts of the host-to-dopant energy transfer were realized in the Ce-doped (i) PrF3 single crystals and (ii) congruently melting Me2+-codoped (YF3-GdF3) solid solutions.

Original languageEnglish
Pages (from-to)416-421
Number of pages6
JournalJournal of Crystal Growth
Volume292
Issue number2
DOIs
Publication statusPublished - 2006 Jul 1

Keywords

  • A1. Defects
  • A1. Doping
  • A2. Micro-pulling-down technique
  • A2. Single crystal growth
  • B2. Scintillator materials

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Inorganic Chemistry
  • Materials Chemistry

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