1. Light Yield and Timing Characteristics of Lu₀.₈Gd₂.₂(Al5–xGax)O₁₂:Ce,Mg Single Crystals.
- Author
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Sakthong, Ongsa, Chewpraditkul, Warut, Pattanaboonmee, Nakarin, Chewpraditkul, Weerapong, Yamaji, Akihiro, Kamada, Kei, Kurosawa, Shunsuke, Yoshikawa, Akira, Witkowski, Marcin, Drozdowski, Winicjusz, Szczesniak, Tomaz, Moszynski, Marek, Babin, Vladimir, and Nikl, Martin
- Subjects
SINGLE crystals ,RADIOLUMINESCENCE ,PHOTONS ,LUMINESCENCE ,LOW temperatures ,SCINTILLATORS - Abstract
The scintillation characteristics of Lu
0.8 Gd2.2 (Al5–x Gax )O12 :Ce,Mg (x = 2.6 and 3) single crystals grown by the micropulling down method are investigated. The light yield of 27600 photons/MeV obtained for Lu0.8 Gd2.2 Al2 Ga3 O12 :Ce,Mg is higher than that of 25 400 photons/MeV obtained for Lu0.8 Gd2.2 Al2.4 Ga2.6 O12 :Ce,Mg. The photoluminescence and scintillation decays measured at room temperature (RT) for Lu0.8 Gd2.2 Al2 Ga3 O12 :Ce,Mg are faster than those for Lu0.8 Gd2.2 Al2.4 Ga2.6 O12 :Ce,Mg. Temperature dependence of radioluminescence (RL) intensity indicates a lower quenching temperature for Lu0.8 Gd2.2 Al2 Ga3 O12 :Ce,Mg. Coincidence time resolution of a Lu0.8 Gd2.2 Al2 Ga3 O12 :Ce,Mg detector in coincidence experiment with a BaF2 detector was measured to be 410 ps. The afterglow and thermally stimulated luminescence (TSL) characteristics below RT are also measured. [ABSTRACT FROM AUTHOR]- Published
- 2020
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