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

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)52-55
Number of pages4
JournalOptical Materials
Volume65
DOIs
Publication statusPublished - 2017 Mar 1

Bibliographical note

Funding Information:
This work is partially supported by (i) Innovative Design and Production Technology Project, New Energy and Industrial Technology Organization, (ii) the Health Labour Sciences Research Grant, The Ministry of Health Labour and Welfare no. H25- Medical equipment-General -001, (iii) Grants-in-Aid for Scientific Research no. 16H05986 and (iv) Czech Science foundation no. 15-18300Y project, Crystal Clear Collaboration in CERN, and EC H2020 Marie Sklodowska-Curie Grant no. 644260 (Intelum).

Publisher Copyright:
© 2016 Elsevier B.V.

Keywords

  • Crystal growth
  • Garnet
  • Scintillator
  • Single crystal

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Spectroscopy
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry
  • Electrical and Electronic Engineering

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