Comparative study of optical and scintillation properties of Ce:YAGG, Ce:GAGG and Ce:LuAGG transparent ceramics  [in Japanese]

Access this Article

Author(s)

    • MORI Masaki
    • Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST)
    • XU Jian
    • Graduate School of Human and Environmental Studies, Kyoto University
    • OKADA Go
    • Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST)
    • YANAGIDA Takayuki
    • Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST)
    • UEDA Jumpei
    • Graduate School of Human and Environmental Studies, Kyoto University

Abstract

We investigated photoluminescence (PL) and scintillation properties of 0.8 mol % Ce-doped (Y, Gd, Lu)<sub>3</sub>Al<sub>2</sub>Ga<sub>3</sub>O<sub>12</sub> (Ce:YAGG, Ce:GAGG and Ce:LuAGG) transparent ceramics, which were fabricated by the vacuum sintering method. The obtained samples showed a strong and broad PL emission in the wavelength range from 470 to 600 nm owing to 5d–4f transitions of Ce<sup>3+</sup>. The PL and scintillation decay curves consisted of two or three exponential components, and the primary components ranged around 35–43 ns. Besides, the scintillation spectra excited by X-rays showed similar features with those in PL. In the X-ray induced afterglow measurements, the Ce:LuAGG sample exhibited the weakest afterglow intensity. The pulse height spectra of these samples showed clear photoabsorption peaks. Among those samples, Ce:LuAGG sample showed the highest scintillation light yield of 18,700 ph/MeV.

Journal

  • Journal of the Ceramic Society of Japan

    Journal of the Ceramic Society of Japan 124(5), 569-573, 2016

    The Ceramic Society of Japan

Codes

  • NII Article ID (NAID)
    130005149958
  • Text Lang
    JPN
  • ISSN
    1882-0743
  • Data Source
    J-STAGE 
Page Top