Luminescence and scintillation response of YGd2Al2Ga3O12:Ce and LuGd2Al2Ga3O12:Ce scintillators

Warut Chewpraditkul; Nakarin Pattanaboonmee; Weerapong Chewpraditkul; Kei Kamada; Akira Yoshikawa; Martin Nikl

doi:10.1016/j.radmeas.2015.12.036

Luminescence and scintillation response of YGd₂Al₂Ga₃O₁₂:Ce and LuGd₂Al₂Ga₃O₁₂:Ce scintillators

Warut Chewpraditkul, Nakarin Pattanaboonmee, Weerapong Chewpraditkul, Kei Kamada, Akira Yoshikawa, Martin Nikl

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

The luminescence and scintillation properties of YGd₂Al₂Ga₃O₁₂:Ce and LuGd₂Al₂Ga₃O₁₂:Ce single crystal scintillators were compared. The light yield (LY) and energy resolution were measured using R6231 photomultiplier. At 662 keV γ-rays, high LY value of 37,900 ph/MeV and energy resolution of 7.0% obtained for YGd₂Al₂Ga₃O₁₂:Ce are slightly better than the values of 35,400 ph/MeV and 7.6% obtained for LuGd₂Al₂Ga₃O₁₂:Ce. The ratio of LY values under excitation with α- and γ-rays (α/γ ratio) was also determined. The LY dependence on amplifier shaping time was measured in order to investigate the timing characteristics in the scintillation response. The estimated photofraction in pulse height spectrum of 662 keV γ-rays and the total mass attenuation coefficient at 662 keV γ-rays were also determined and compared with the theoretical ones calculated using the WinXCom program.

Original language	English
Pages (from-to)	153-156
Number of pages	4
Journal	Radiation Measurements
Volume	90
DOIs	https://doi.org/10.1016/j.radmeas.2015.12.036
Publication status	Published - 2016 Jul

Keywords

Light yield
LuGdAlGaO:Ce
Luminescence
Scintillation
YGdAlGaO:Ce

ASJC Scopus subject areas

Radiation
Instrumentation

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10.1016/j.radmeas.2015.12.036

Cite this

@article{14ce0e5e420d46e0a2faa878e5791067,

title = "Luminescence and scintillation response of YGd2Al2Ga3O12:Ce and LuGd2Al2Ga3O12:Ce scintillators",

abstract = "The luminescence and scintillation properties of YGd2Al2Ga3O12:Ce and LuGd2Al2Ga3O12:Ce single crystal scintillators were compared. The light yield (LY) and energy resolution were measured using R6231 photomultiplier. At 662 keV γ-rays, high LY value of 37,900 ph/MeV and energy resolution of 7.0% obtained for YGd2Al2Ga3O12:Ce are slightly better than the values of 35,400 ph/MeV and 7.6% obtained for LuGd2Al2Ga3O12:Ce. The ratio of LY values under excitation with α- and γ-rays (α/γ ratio) was also determined. The LY dependence on amplifier shaping time was measured in order to investigate the timing characteristics in the scintillation response. The estimated photofraction in pulse height spectrum of 662 keV γ-rays and the total mass attenuation coefficient at 662 keV γ-rays were also determined and compared with the theoretical ones calculated using the WinXCom program.",

keywords = "Light yield, LuGdAlGaO:Ce, Luminescence, Scintillation, YGdAlGaO:Ce",

author = "Warut Chewpraditkul and Nakarin Pattanaboonmee and Weerapong Chewpraditkul and Kei Kamada and Akira Yoshikawa and Martin Nikl",

note = "Publisher Copyright: {\textcopyright} 2016 Elsevier Ltd",

year = "2016",

month = jul,

doi = "10.1016/j.radmeas.2015.12.036",

language = "English",

volume = "90",

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T1 - Luminescence and scintillation response of YGd2Al2Ga3O12:Ce and LuGd2Al2Ga3O12:Ce scintillators

AU - Chewpraditkul, Warut

AU - Pattanaboonmee, Nakarin

AU - Chewpraditkul, Weerapong

AU - Kamada, Kei

AU - Yoshikawa, Akira

AU - Nikl, Martin

PY - 2016/7

Y1 - 2016/7

N2 - The luminescence and scintillation properties of YGd2Al2Ga3O12:Ce and LuGd2Al2Ga3O12:Ce single crystal scintillators were compared. The light yield (LY) and energy resolution were measured using R6231 photomultiplier. At 662 keV γ-rays, high LY value of 37,900 ph/MeV and energy resolution of 7.0% obtained for YGd2Al2Ga3O12:Ce are slightly better than the values of 35,400 ph/MeV and 7.6% obtained for LuGd2Al2Ga3O12:Ce. The ratio of LY values under excitation with α- and γ-rays (α/γ ratio) was also determined. The LY dependence on amplifier shaping time was measured in order to investigate the timing characteristics in the scintillation response. The estimated photofraction in pulse height spectrum of 662 keV γ-rays and the total mass attenuation coefficient at 662 keV γ-rays were also determined and compared with the theoretical ones calculated using the WinXCom program.

AB - The luminescence and scintillation properties of YGd2Al2Ga3O12:Ce and LuGd2Al2Ga3O12:Ce single crystal scintillators were compared. The light yield (LY) and energy resolution were measured using R6231 photomultiplier. At 662 keV γ-rays, high LY value of 37,900 ph/MeV and energy resolution of 7.0% obtained for YGd2Al2Ga3O12:Ce are slightly better than the values of 35,400 ph/MeV and 7.6% obtained for LuGd2Al2Ga3O12:Ce. The ratio of LY values under excitation with α- and γ-rays (α/γ ratio) was also determined. The LY dependence on amplifier shaping time was measured in order to investigate the timing characteristics in the scintillation response. The estimated photofraction in pulse height spectrum of 662 keV γ-rays and the total mass attenuation coefficient at 662 keV γ-rays were also determined and compared with the theoretical ones calculated using the WinXCom program.

KW - Light yield

KW - LuGdAlGaO:Ce

KW - Luminescence

KW - Scintillation

KW - YGdAlGaO:Ce

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