Li+, Na+ and K+ co-doping effects on scintillation properties of Ce:Gd3Ga3Al2O12 single crystals

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

研究成果: Article査読

9 被引用数 (Scopus)


Ce0.5%: Ce:Gd3Ga3Al2O12(GGAG) single crystals co-doped with 500at.ppm Li+, Na+ and K+ were grown by using the micro-pulling down method. The smooth Ce4+ charge transfer absorption below 350 nm and decay time acceleration were observed in Li co-doped sample. Na+ and K+ co-doping did not show a large effect on the acceleration of decay time compared with Li co-doping. Ce0.5%:GGAG single crystals co-doped with 500 at.ppm Li+ were also grown by the Czochralski method. Optical, scintillation properties and timing performance were evaluated to investigate the effect of univalent alkali metal ions co-doping on Ce:GGAG scintillators. The scintillation decay curves were accelerated by Li co-doping: the decay time was significantly accelerated to 54.8 ns (47%) for the faster component and 158 ns (53%) for the slower component. The light output was 94% of the non co-doped Ce:GGAG standard. The coincidence time resolution was improved to 258 ps by Li co-doping.

ジャーナルJournal of Crystal Growth
出版ステータスPublished - 2018 6 1

ASJC Scopus subject areas

  • 凝縮系物理学
  • 無機化学
  • 材料化学


「Li<sup>+</sup>, Na<sup>+</sup> and K<sup>+</sup> co-doping effects on scintillation properties of Ce:Gd<sub>3</sub>Ga<sub>3</sub>Al<sub>2</sub>O<sub>12</sub> single crystals」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。