TY - JOUR
T1 - Scintillation characteristics of YAlO3:Pr perovskite single crystals
AU - Sreebunpeng, Krittiya
AU - Janthon, Patanachai
AU - Chewpraditkul, Weerapong
AU - Szczesniak, Tomasz
AU - Nikl, Martin
AU - Yoshikawa, Akira
N1 - Funding Information:
Partial support from the project Solid21 from Operational Programme Research, Development and Education financed by European Structural and Investment Funds and the Czech Ministry of Education, Youth and Sports (Project No. SOLID21 CZ.02.1.01/0.0/0.0/16_019/0000760 ) is gratefully acknowledged. Special thanks are due to Marcin E. Witkowski of Nicolaus Copernicus University in Torun for low temperature TL measurements.
Funding Information:
Partial support from the project Solid21 from Operational Programme Research, Development and Education financed by European Structural and Investment Funds and the Czech Ministry of Education, Youth and Sports (Project No. SOLID21 CZ.02.1.01/0.0/0.0/16_019/0000760) is gratefully acknowledged. Special thanks are due to Marcin E. Witkowski of Nicolaus Copernicus University in Torun for low temperature TL measurements.
Publisher Copyright:
© 2020 Elsevier B.V.
PY - 2020/10
Y1 - 2020/10
N2 - The luminescence and scintillation characteristics of YAlO3:Pr (0.05, 0.51 and 1.1 mol%) single crystals were investigated. At 662 keV γ-rays, the light yield of 22,290 ± 1150, 13,070 ± 650 and 13,240 ± 650 ph/MeV was obtained, respectively, for YAP:Pr (0.05%), YAP:Pr (0.51%) and YAP:Pr (1.1%). In scintillation decays the intensity of fast component (9–12 ns) becomes enhanced with increasing Pr concentration in the crystals. The time resolution at 511 keV annihilation quanta was measured for YAP:Pr-PMT detector in coincidence experiment with a BaF2-PMT detector. The time resolution of 357 ± 19, 333 ± 18 and 268 ± 15 ps was obtained, respectively, for YAP:Pr (0.05%), YAP:Pr (0.51%) and YAP:Pr (1.1%). High concentration of shallow traps in both YAP:Pr (0.51%) and YAP:Pr (1.1%) samples was evidenced by means of thermoluminescence in the 20–350 K temperature range. The lower light yield obtained for YAP:Pr (0.51%) can be caused by the enhanced delayed radiative recombination at Pr3+ luminescence centers.
AB - The luminescence and scintillation characteristics of YAlO3:Pr (0.05, 0.51 and 1.1 mol%) single crystals were investigated. At 662 keV γ-rays, the light yield of 22,290 ± 1150, 13,070 ± 650 and 13,240 ± 650 ph/MeV was obtained, respectively, for YAP:Pr (0.05%), YAP:Pr (0.51%) and YAP:Pr (1.1%). In scintillation decays the intensity of fast component (9–12 ns) becomes enhanced with increasing Pr concentration in the crystals. The time resolution at 511 keV annihilation quanta was measured for YAP:Pr-PMT detector in coincidence experiment with a BaF2-PMT detector. The time resolution of 357 ± 19, 333 ± 18 and 268 ± 15 ps was obtained, respectively, for YAP:Pr (0.05%), YAP:Pr (0.51%) and YAP:Pr (1.1%). High concentration of shallow traps in both YAP:Pr (0.51%) and YAP:Pr (1.1%) samples was evidenced by means of thermoluminescence in the 20–350 K temperature range. The lower light yield obtained for YAP:Pr (0.51%) can be caused by the enhanced delayed radiative recombination at Pr3+ luminescence centers.
KW - Light yield
KW - Scintillation decay
KW - Thermoluminescence
KW - Time resolution
KW - YAP:Pr
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U2 - 10.1016/j.optmat.2020.110161
DO - 10.1016/j.optmat.2020.110161
M3 - Article
AN - SCOPUS:85088664047
SN - 0925-3467
VL - 108
JO - Optical Materials
JF - Optical Materials
M1 - 110161
ER -