Comparative Study of GdLu2Al2Ga3O12:Ce and GdY2Al2Ga3O12:Ce Scintillation Crystals for γ -Ray Detection

O. Sakthong; W. R. Chewpraditkul; W. Chewpraditkul; T. Szczesniak; L. Swiderski; M. Moszynski; K. Kamada; A. Yoshikawa; M. Nikl

doi:10.1109/TNS.2018.2809563

Comparative Study of GdLu₂Al₂Ga₃O₁₂:Ce and GdY₂Al₂Ga₃O₁₂:Ce Scintillation Crystals for γ -Ray Detection

O. Sakthong, W. R. Chewpraditkul, W. Chewpraditkul, T. Szczesniak, L. Swiderski, M. Moszynski, K. Kamada, A. Yoshikawa, M. Nikl

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Abstract

The scintillation characteristics of Czochralski-grown GdLu₂Al₂Ga₃O₁₂:Ce and GdY₂Al₂Ga₃O₁₂:Ce single crystals were compared for γ -ray detection. At 662-keV γ -rays, light yield (LY) of 30700 photons/MeV obtained for GdLu₂Al₂Ga₃O₁₂:Ce is higher than that of 27200 photons/MeV obtained for GdY₂Al₂Ga₃O₁₂:Ce, while its energy resolution is inferior (14% versus 10.6%) due to a larger nonproportionality of LY. Scintillation decays were measured using the time-correlated single photon counting technique. A fast component decay time of 48 ns with relative intensity of 71% obtained for GdLu₂Al₂Ga₃O₁₂:Ce is superior to that of 106 ns (57%) for GdY₂Al₂Ga₃O₁₂:Ce. The coincidence time spectrum was measured in reference to a fast BaF₂ scintillator, and coincidence time resolution was discussed.

Original language	English
Article number	8302608
Pages (from-to)	2081-2084
Number of pages	4
Journal	IEEE Transactions on Nuclear Science
Volume	65
Issue number	8
DOIs	https://doi.org/10.1109/TNS.2018.2809563
Publication status	Published - 2018 Aug

Keywords

Coincidence time resolution
GdLuAlGaO:Ce
GdYlGaO:Ce
energy resolution
light yield (LY)
scintillation decay

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10.1109/TNS.2018.2809563

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@article{c5f4a680f7744f9bab637b06b7c00cf7,

title = "Comparative Study of GdLu2Al2Ga3O12:Ce and GdY2Al2Ga3O12:Ce Scintillation Crystals for γ -Ray Detection",

abstract = "The scintillation characteristics of Czochralski-grown GdLu2Al2Ga3O12:Ce and GdY2Al2Ga3O12:Ce single crystals were compared for γ -ray detection. At 662-keV γ -rays, light yield (LY) of 30700 photons/MeV obtained for GdLu2Al2Ga3O12:Ce is higher than that of 27200 photons/MeV obtained for GdY2Al2Ga3O12:Ce, while its energy resolution is inferior (14% versus 10.6%) due to a larger nonproportionality of LY. Scintillation decays were measured using the time-correlated single photon counting technique. A fast component decay time of 48 ns with relative intensity of 71% obtained for GdLu2Al2Ga3O12:Ce is superior to that of 106 ns (57%) for GdY2Al2Ga3O12:Ce. The coincidence time spectrum was measured in reference to a fast BaF2 scintillator, and coincidence time resolution was discussed.",

keywords = "Coincidence time resolution, GdLuAlGaO:Ce, GdYlGaO:Ce, energy resolution, light yield (LY), scintillation decay",

author = "O. Sakthong and Chewpraditkul, {W. R.} and W. Chewpraditkul and T. Szczesniak and L. Swiderski and M. Moszynski and K. Kamada and A. Yoshikawa and M. Nikl",

note = "Funding Information: Manuscript received January 24, 2018; accepted February 12, 2018. Date of publication February 27, 2018; date of current version August 15, 2018. This work was supported in part by the National Research Council of Thailand under Project 2560A30602200, in part by the King Mongkut{\textquoteright}s University of Technology Thonburi, and in part by the Czech Science Foundation under Grant 16-15569S. Publisher Copyright: {\textcopyright} 1963-2012 IEEE.",

year = "2018",

month = aug,

doi = "10.1109/TNS.2018.2809563",

language = "English",

volume = "65",

pages = "2081--2084",

journal = "IEEE Transactions on Nuclear Science",

issn = "0018-9499",

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T1 - Comparative Study of GdLu2Al2Ga3O12:Ce and GdY2Al2Ga3O12:Ce Scintillation Crystals for γ -Ray Detection

AU - Sakthong, O.

AU - Chewpraditkul, W. R.

AU - Chewpraditkul, W.

AU - Szczesniak, T.

AU - Swiderski, L.

AU - Moszynski, M.

AU - Kamada, K.

AU - Yoshikawa, A.

AU - Nikl, M.

N1 - Funding Information: Manuscript received January 24, 2018; accepted February 12, 2018. Date of publication February 27, 2018; date of current version August 15, 2018. This work was supported in part by the National Research Council of Thailand under Project 2560A30602200, in part by the King Mongkut’s University of Technology Thonburi, and in part by the Czech Science Foundation under Grant 16-15569S. Publisher Copyright: © 1963-2012 IEEE.

PY - 2018/8

Y1 - 2018/8

N2 - The scintillation characteristics of Czochralski-grown GdLu2Al2Ga3O12:Ce and GdY2Al2Ga3O12:Ce single crystals were compared for γ -ray detection. At 662-keV γ -rays, light yield (LY) of 30700 photons/MeV obtained for GdLu2Al2Ga3O12:Ce is higher than that of 27200 photons/MeV obtained for GdY2Al2Ga3O12:Ce, while its energy resolution is inferior (14% versus 10.6%) due to a larger nonproportionality of LY. Scintillation decays were measured using the time-correlated single photon counting technique. A fast component decay time of 48 ns with relative intensity of 71% obtained for GdLu2Al2Ga3O12:Ce is superior to that of 106 ns (57%) for GdY2Al2Ga3O12:Ce. The coincidence time spectrum was measured in reference to a fast BaF2 scintillator, and coincidence time resolution was discussed.

AB - The scintillation characteristics of Czochralski-grown GdLu2Al2Ga3O12:Ce and GdY2Al2Ga3O12:Ce single crystals were compared for γ -ray detection. At 662-keV γ -rays, light yield (LY) of 30700 photons/MeV obtained for GdLu2Al2Ga3O12:Ce is higher than that of 27200 photons/MeV obtained for GdY2Al2Ga3O12:Ce, while its energy resolution is inferior (14% versus 10.6%) due to a larger nonproportionality of LY. Scintillation decays were measured using the time-correlated single photon counting technique. A fast component decay time of 48 ns with relative intensity of 71% obtained for GdLu2Al2Ga3O12:Ce is superior to that of 106 ns (57%) for GdY2Al2Ga3O12:Ce. The coincidence time spectrum was measured in reference to a fast BaF2 scintillator, and coincidence time resolution was discussed.

KW - Coincidence time resolution

KW - GdLuAlGaO:Ce

KW - GdYlGaO:Ce

KW - energy resolution

KW - light yield (LY)

KW - scintillation decay

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JF - IEEE Transactions on Nuclear Science

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Comparative Study of GdLu₂Al₂Ga₃O₁₂:Ce and GdY₂Al₂Ga₃O₁₂:Ce Scintillation Crystals for γ -Ray Detection

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Keywords

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