TY - JOUR
T1 - Comparison of luminescence, energy resolution and light loss coefficient of Gd1.53La0.47Si2O7:Ce and Lu1.9Y0.1SiO5:Ce scintillators
AU - Yawai, Nattasuda
AU - Wantong, Kriangkrai
AU - Chewpraditkul, Weerapong
AU - Murakami, Rikito
AU - Horiai, Takahiko
AU - Kurosawa, Shunsuke
AU - Yoshikawa, Akira
AU - Nikl, Martin
N1 - Funding Information:
This work is partially supported by the National Research Council of Thailand (NRCT project no. 2559A30602099 ) and King Mongkut's University of Technology Thonburi . Partial support of the project of Czech-Japan collaboration, MEYS, KONTAKT II no. 14266 is also gratefully acknowledged.
Publisher Copyright:
© 2016 Elsevier B.V.
PY - 2017/2/1
Y1 - 2017/2/1
N2 - The luminescence and scintillation properties of Gd1.53La0.47Si2O7:Ce (GPSLa23.5%:Ce) scintillators were investigated and compared to those of Lu1.9Y0.1SiO5:Ce (LYSO:Ce) scintillators. At 662 keV γ-rays, the light yield of 33,500±3300 ph/MeV obtained for GPSLa23.5%:Ce is higher than that of 28,100±2800 ph/MeV obtained for LYSO:Ce. The energy resolution of 4.8±0.2% obtained for GPSLa23.5%:Ce is much better than that of 8.2±0.3% obtained for LYSO:Ce due to its better intrinsic resolution and proportionality of light yield. The light yield and energy resolution for α- rays, as well as a light yield ratio under excitation with α - and γ - rays (α/γ ratio) were also determined. The intrinsic light yield and light loss coefficient under excitation with 662 keV γ-rays were evaluated. The total attenuation coefficient at 60 keV and 662 keV γ - rays was also determined and compared with the theoretical one calculated using the WinXCom program.
AB - The luminescence and scintillation properties of Gd1.53La0.47Si2O7:Ce (GPSLa23.5%:Ce) scintillators were investigated and compared to those of Lu1.9Y0.1SiO5:Ce (LYSO:Ce) scintillators. At 662 keV γ-rays, the light yield of 33,500±3300 ph/MeV obtained for GPSLa23.5%:Ce is higher than that of 28,100±2800 ph/MeV obtained for LYSO:Ce. The energy resolution of 4.8±0.2% obtained for GPSLa23.5%:Ce is much better than that of 8.2±0.3% obtained for LYSO:Ce due to its better intrinsic resolution and proportionality of light yield. The light yield and energy resolution for α- rays, as well as a light yield ratio under excitation with α - and γ - rays (α/γ ratio) were also determined. The intrinsic light yield and light loss coefficient under excitation with 662 keV γ-rays were evaluated. The total attenuation coefficient at 60 keV and 662 keV γ - rays was also determined and compared with the theoretical one calculated using the WinXCom program.
KW - Energy resolution
KW - GPSLa23.5%:Ce
KW - Light yield
KW - LuYSiO:Ce
KW - Luminescence
KW - Scintillation
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U2 - 10.1016/j.nima.2016.11.040
DO - 10.1016/j.nima.2016.11.040
M3 - Article
AN - SCOPUS:84998799567
SN - 0168-9002
VL - 844
SP - 129
EP - 134
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
ER -