2 inch size Czochralski growth and scintillation properties of Li+ co-doped Ce:Gd3Ga3Al2O12

Kei Kamada*, Yasuhiro Shoji, Vladimir V. Kochurikhin, Masao Yoshino, Satoshi Okumura, Seiichi Yamamoto, Jung Yeol Yeom, Shunsuke Kurosawa, Yuui Yokota, Yuji Ohashi, Martin Nikl, Masao Yoshino, Akira Yoshikawa

*この研究の対応する著者

研究成果: Article査読

13 被引用数 (Scopus)

抄録

The 2 inch size Li 0.15 and 1.35 mol% co-doped Ce:Gd3Al2Ga3O12 single crystals were prepared by the Czochralski (Cz) method. Absorption and luminescence spectra were measured together with several other scintillation characteristics, namely the scintillation decay and light yield to reveal the effect of Li co-doping. Ce4+ CT absorption below 350 nm is clearly enhanced by Li co-doping as same as divalent ions co-doping. By 1.35 at.% Li co-doping, light yield was decrease to 88% of the Ce: GAGG standard and decay time was accelerated to 34.3ns 21.0%, 84.6ns 68.7%, 480ns 10.3%. The timing resolution measurement for a pair of 3 × 3 × 3mm3 size Li,Ce:GAGG scintillator crystals was performed using Si-PMs and the timing resolution of the 1.35 at.% Li co-doped Ce:GAGG was 218ps.

本文言語English
ページ(範囲)52-55
ページ数4
ジャーナルOptical Materials
65
DOI
出版ステータスPublished - 2017 3月 1
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 原子分子物理学および光学
  • 分光学
  • 物理化学および理論化学
  • 有機化学
  • 無機化学
  • 電子工学および電気工学

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