Luminescence and Scintillation Properties of Mg2+-Codoped Lu0.6Gd2.4Al2Ga3O12:Ce Single Crystal
Luminescence and Scintillation Properties of Mg2+-Codoped Lu0.6Gd2.4Al2Ga3O12:Ce Single Crystal
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DOI：
10.1109/tns.2020.2984518
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发表时间：
2020-03
影响因子：
1.8
通讯作者：
W. Chewpraditkul;N. Pattanaboonmee;O. Sakthong;W. Chewpraditkul;M. Yoshino;T. Horiai;A. Yoshikawa;L. Gushchina;K. Kamada;S. Kurosawa;W. Drozdowski;M. Witkowski;T. Szczesniak;M. Moszynski;M. Nikl
中科院分区：
文献类型：
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作者：
W. Chewpraditkul;N. Pattanaboonmee;O. Sakthong;W. Chewpraditkul;M. Yoshino;T. Horiai;A. Yoshikawa;L. Gushchina;K. Kamada;S. Kurosawa;W. Drozdowski;M. Witkowski;T. Szczesniak;M. Moszynski;M. Nikl
研究了采用提拉法生长的Mg²⁺共掺杂Lu₀.₆Gd₂.₄Al₂Ga₃O₁₂:Ce（LGAGG:Ce,Mg）单晶的闪烁性能。与GAGG:Ce,Mg参考晶体相比，给出了其光产额（LY）、闪烁衰减时间和符合时间分辨率。LGAGG:Ce,Mg获得的光产额为26200光子/兆电子伏特，低于GAGG:Ce,Mg的39600光子/兆电子伏特。尽管LGAGG:Ce,Mg的光产额较低，但由于其闪烁衰减时间更快，其时间分辨率与GAGG:Ce,Mg相当。相对于GAGG:Ce,Mg，LGAGG:Ce,Mg的余辉衰减快得多，热释光强度也更低。
The scintillation properties of Mg2+-codoped Lu0.6Gd2.4Al2Ga3O12:Ce (LGAGG:Ce,Mg) single crystal grown by Czochralski’s method are investigated. The light yield (LY), scintillation decay time, and coincidence time resolution are presented in comparison with a GAGG:Ce,Mg reference crystal. The LY of 26 200 photons/MeV obtained for LGAGG:Ce,Mg is lower than that of 39 600 photons/MeV for GAGG:Ce,Mg. Despite a lower LY value, the time resolution of LGAGG:Ce,Mg is comparable to that of GAGG:Ce,Mg due to its faster scintillation decay time. LGAGG:Ce,Mg exhibits a much faster afterglow decay and a lower thermally stimulated luminescence intensity with respect to GAGG:Ce,Mg.