Crystal growth and scintillation properties of tube shape-controlled Ce-doped Y3Al5O12single crystals grown by micro-pulling-down method

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Tube shape-controlled Ce-doped Y3Al5O12 (tube-Ce:YAG) single-crystal scintillators were directly grown from a melt via the micro-pulling-down method using a specially-designed iridium crucible. Back-scattering Laue images and X-ray diffraction measurements revealed the tube-Ce:YAG was a single crystal with the YAG phase. Ce distribution in the tangential direction of the tube-Ce:YAG specimen showed that Ce concentrations around the capillary positions were lower than at the corners. This was caused by the small Ce segregation coefficient in the YAG single crystal and from the small convection in the meniscus. The scintillation properties of tube-Ce:YAG specimens were comparable with previously reported Ce:YAG single crystals.

Original languageEnglish
Article number125503
JournalApplied Physics Express
Issue number12
Publication statusPublished - 2020 Dec 1

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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