Correlation between crystal grain sizes of transparent ceramics and scintillation light yields

Akihiro Fukabori, Liqiong An, Akihiko Ito, Valery Chani, Kei Kamada, Akira Yoshikawa, Takayasu Ikegami, Takashi Goto

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

Abstract

Light yields of Y 2O 3 ceramics are different from specimen to specimen. Nature of this phenomenon is not clear yet. Furthermore, origin of emission peaks for Y 2O 3 is not well understood. The results reported suggest that the emission derived from trapped excitons originates from the defects accumulated in the grain boundaries of the ceramics. In this paper, average grain size is introduced in order to evaluate defects inside the ceramics. Relationship between average crystal grain size and scintillation light yield is demonstrated.

Original languageEnglish
Pages (from-to)2119-2123
Number of pages5
JournalCeramics International
Volume38
Issue number3
DOIs
Publication statusPublished - 2012 Apr 1

Keywords

  • Crystal grain size
  • D. Y O
  • Scintillation light yields
  • Scintillators
  • Transparent ceramics

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Process Chemistry and Technology
  • Surfaces, Coatings and Films
  • Materials Chemistry

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