TY - JOUR
T1 - New efficient OSL detectors based on the crystals of Ce3+ doped Gd3Al5−xGaxO12 mixed garnet
AU - Bilski, P.
AU - Mrozik, A.
AU - Kłosowski, M.
AU - Gieszczyk, W.
AU - Zorenko, Yu
AU - Kamada, K.
AU - Yoshikawa, A.
AU - Sidletskiy, O.
N1 - Funding Information:
The work was performed in the frame of Polish NCN UMO-2018/31/B/ST8/03390 project.
Publisher Copyright:
© 2021 The Author(s)
PY - 2021/11
Y1 - 2021/11
N2 - In this study, the infrared optically-stimulated luminescence (IR-OSL) of single crystals of Ce3+ doped Gd3(GaxAl5−x)O12 mixed garnet with Ga content x = 2.5, 2.7, 3 was investigated for the first time. It was demonstrated that infrared stimulation of these crystals previously exposed to beta radiation produces a strong luminescence signal comparable with conventional OSL phosphors. The intensity of the IR-OSL highly depends on Ga content, reaching maximum for x = 2.5. The IR-OSL decay curves are multicomponent, with predominant fast components with the decay time around 1 s. The relation between IR-OSL and thermoluminescence was also studied. It was found that the most intense fast components of IR-OSL decay are related to the low-temperature peaks in thermoluminescence glow curves occurring at the temperature range 78–96 °C. The observed high intensity of the IR-OSL signal creates perspectives for possible applications of Gd3(GaxAl5−x)O12 mixed garnet crystals for passive radiation measurements and dosimetry.
AB - In this study, the infrared optically-stimulated luminescence (IR-OSL) of single crystals of Ce3+ doped Gd3(GaxAl5−x)O12 mixed garnet with Ga content x = 2.5, 2.7, 3 was investigated for the first time. It was demonstrated that infrared stimulation of these crystals previously exposed to beta radiation produces a strong luminescence signal comparable with conventional OSL phosphors. The intensity of the IR-OSL highly depends on Ga content, reaching maximum for x = 2.5. The IR-OSL decay curves are multicomponent, with predominant fast components with the decay time around 1 s. The relation between IR-OSL and thermoluminescence was also studied. It was found that the most intense fast components of IR-OSL decay are related to the low-temperature peaks in thermoluminescence glow curves occurring at the temperature range 78–96 °C. The observed high intensity of the IR-OSL signal creates perspectives for possible applications of Gd3(GaxAl5−x)O12 mixed garnet crystals for passive radiation measurements and dosimetry.
KW - Mixed garnets crystals
KW - Optically stimulated luminescence
KW - Radiation dosimetry
KW - Thermoluminescence
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U2 - 10.1016/j.mseb.2021.115448
DO - 10.1016/j.mseb.2021.115448
M3 - Article
AN - SCOPUS:85115189478
SN - 0921-5107
VL - 273
JO - Materials Science and Engineering B: Solid-State Materials for Advanced Technology
JF - Materials Science and Engineering B: Solid-State Materials for Advanced Technology
M1 - 115448
ER -