Mg,Ce co-doped Lu2Gd1(Ga,Al)5O12 by micro-pulling down method and their luminescence properties

Kei Kamada; Hiroaki Yamaguchi; Masao Yoshino; Shunsuke Kurosawa; Yasuhiro Shoji; Yuui Yokota; Yuji Ohashi; Jan Pejchal; Martin Nikl; Akira Yoshikawa

doi:10.7567/JJAP.57.04FJ06

Mg,Ce co-doped Lu₂Gd₁(Ga,Al)₅O₁₂ by micro-pulling down method and their luminescence properties

Kei Kamada, Hiroaki Yamaguchi, Masao Yoshino, Shunsuke Kurosawa, Yasuhiro Shoji, Yuui Yokota, Yuji Ohashi, Jan Pejchal, Martin Nikl, Akira Yoshikawa

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

The effects of Mg co-doping on the scintillation properties of Ce:Lu₂Gd₁(Ga,Al)₅O₁₂ (LGGAG) single crystals with different Ga/Al ratios were investigated. Mg co-doped and non co-doped Ce:LGGAG single crystals were grown by the micro-pulling down (μ-PD) method and then cut, polished and annealed for each measurement. Absorption spectra, radioluminescence (RL) spectra, pulse height spectra, and scintillation decay were measured to reveal the effect of Mg co-doping. Ce⁴⁺ charge transfer (CT) absorption band peaking at ∼260nm was observed in Mg co-doped samples, which is in good agreement with previous reports for the Ce⁴⁺ CT absorption band in other garnet-based crystals. The scintillation decay time tended to be accelerated and the light yield tended to be decreased by Mg co-doping at higher Ga concentrations.

Original language	English
Article number	04FJ06
Journal	Japanese journal of applied physics
Volume	57
Issue number	4
DOIs	https://doi.org/10.7567/JJAP.57.04FJ06
Publication status	Published - 2018 Apr

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

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Mg,Ce co-doped Lu₂Gd₁(Ga,Al)₅O₁₂ by micro-pulling down method and their luminescence properties. / Kamada, Kei; Yamaguchi, Hiroaki; Yoshino, Masao ; Kurosawa, Shunsuke; Shoji, Yasuhiro; Yokota, Yuui ; Ohashi, Yuji; Pejchal, Jan; Nikl, Martin; Yoshikawa, Akira.

In: Japanese journal of applied physics, Vol. 57, No. 4, 04FJ06, 04.2018.

Research output: Contribution to journal › Article › peer-review

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title = "Mg,Ce co-doped Lu2Gd1(Ga,Al)5O12 by micro-pulling down method and their luminescence properties",

abstract = "The effects of Mg co-doping on the scintillation properties of Ce:Lu2Gd1(Ga,Al)5O12 (LGGAG) single crystals with different Ga/Al ratios were investigated. Mg co-doped and non co-doped Ce:LGGAG single crystals were grown by the micro-pulling down (μ-PD) method and then cut, polished and annealed for each measurement. Absorption spectra, radioluminescence (RL) spectra, pulse height spectra, and scintillation decay were measured to reveal the effect of Mg co-doping. Ce4+ charge transfer (CT) absorption band peaking at ∼260nm was observed in Mg co-doped samples, which is in good agreement with previous reports for the Ce4+ CT absorption band in other garnet-based crystals. The scintillation decay time tended to be accelerated and the light yield tended to be decreased by Mg co-doping at higher Ga concentrations.",

author = "Kei Kamada and Hiroaki Yamaguchi and Masao Yoshino and Shunsuke Kurosawa and Yasuhiro Shoji and Yuui Yokota and Yuji Ohashi and Jan Pejchal and Martin Nikl and Akira Yoshikawa",

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AU - Kamada, Kei

AU - Yamaguchi, Hiroaki

AU - Yoshino, Masao

AU - Kurosawa, Shunsuke

AU - Shoji, Yasuhiro

AU - Yokota, Yuui

AU - Ohashi, Yuji

AU - Pejchal, Jan

AU - Nikl, Martin

AU - Yoshikawa, Akira

PY - 2018/4

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N2 - The effects of Mg co-doping on the scintillation properties of Ce:Lu2Gd1(Ga,Al)5O12 (LGGAG) single crystals with different Ga/Al ratios were investigated. Mg co-doped and non co-doped Ce:LGGAG single crystals were grown by the micro-pulling down (μ-PD) method and then cut, polished and annealed for each measurement. Absorption spectra, radioluminescence (RL) spectra, pulse height spectra, and scintillation decay were measured to reveal the effect of Mg co-doping. Ce4+ charge transfer (CT) absorption band peaking at ∼260nm was observed in Mg co-doped samples, which is in good agreement with previous reports for the Ce4+ CT absorption band in other garnet-based crystals. The scintillation decay time tended to be accelerated and the light yield tended to be decreased by Mg co-doping at higher Ga concentrations.

AB - The effects of Mg co-doping on the scintillation properties of Ce:Lu2Gd1(Ga,Al)5O12 (LGGAG) single crystals with different Ga/Al ratios were investigated. Mg co-doped and non co-doped Ce:LGGAG single crystals were grown by the micro-pulling down (μ-PD) method and then cut, polished and annealed for each measurement. Absorption spectra, radioluminescence (RL) spectra, pulse height spectra, and scintillation decay were measured to reveal the effect of Mg co-doping. Ce4+ charge transfer (CT) absorption band peaking at ∼260nm was observed in Mg co-doped samples, which is in good agreement with previous reports for the Ce4+ CT absorption band in other garnet-based crystals. The scintillation decay time tended to be accelerated and the light yield tended to be decreased by Mg co-doping at higher Ga concentrations.

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