Comparative study of intrinsic luminescence in undoped transparent ceramic and single crystal garnet scintillators

Yutaka Fujimoto; Takayuki Yanagida; Hideki Yagi; Takagimi Yanagidani; Valery Chani

doi:10.1016/j.optmat.2014.06.019

Comparative study of intrinsic luminescence in undoped transparent ceramic and single crystal garnet scintillators

Yutaka Fujimoto, Takayuki Yanagida, Hideki Yagi, Takagimi Yanagidani, Valery Chani

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

24 Citations (Scopus)

Abstract

Scintillation properties associated with intrinsic lattice defects of undoped Y₃A₅O₁₂ (YAG) and Lu₃A ₅O₁₂ (LuAG) transparent ceramics and single crystals are compared. The ceramics excited with X-ray demonstrated relatively low emission intensity when compared with that of the single crystals. Decay times of the ceramics and the single crystals were similar. These parameters were approximately 430 ns (YAG ceramic), 460 ns (YAG single crystal), 30 ns and 1090 ns (LuAG ceramic), and 25 ns and 970 ns (LuAG single crystal). According to the pulse height spectra recorded under ¹³⁷Cs gamma-ray irradiation, the scintillation light yield of the both ceramics were about 2950 ± 290 ph/MeV. However, the single crystals had greater kight yield of about about 14,300 ± 1430 ph/MeV for YAG and 8350 ± 830 ph/MeV for LuAG.

Original language	English
Pages (from-to)	1926-1929
Number of pages	4
Journal	Optical Materials
Volume	36
Issue number	12
DOIs	https://doi.org/10.1016/j.optmat.2014.06.019
Publication status	Published - 2014 Oct
Externally published	Yes

Keywords

Garnet
Scintillator
Transparent ceramic

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Computer Science(all)
Atomic and Molecular Physics, and Optics
Spectroscopy
Physical and Theoretical Chemistry
Organic Chemistry
Inorganic Chemistry
Electrical and Electronic Engineering

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title = "Comparative study of intrinsic luminescence in undoped transparent ceramic and single crystal garnet scintillators",

abstract = "Scintillation properties associated with intrinsic lattice defects of undoped Y3A5O12 (YAG) and Lu3A 5O12 (LuAG) transparent ceramics and single crystals are compared. The ceramics excited with X-ray demonstrated relatively low emission intensity when compared with that of the single crystals. Decay times of the ceramics and the single crystals were similar. These parameters were approximately 430 ns (YAG ceramic), 460 ns (YAG single crystal), 30 ns and 1090 ns (LuAG ceramic), and 25 ns and 970 ns (LuAG single crystal). According to the pulse height spectra recorded under 137Cs gamma-ray irradiation, the scintillation light yield of the both ceramics were about 2950 ± 290 ph/MeV. However, the single crystals had greater kight yield of about about 14,300 ± 1430 ph/MeV for YAG and 8350 ± 830 ph/MeV for LuAG.",

keywords = "Garnet, Scintillator, Transparent ceramic",

author = "Yutaka Fujimoto and Takayuki Yanagida and Hideki Yagi and Takagimi Yanagidani and Valery Chani",

year = "2014",

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T1 - Comparative study of intrinsic luminescence in undoped transparent ceramic and single crystal garnet scintillators

AU - Fujimoto, Yutaka

AU - Yanagida, Takayuki

AU - Yagi, Hideki

AU - Yanagidani, Takagimi

AU - Chani, Valery

PY - 2014/10

Y1 - 2014/10

N2 - Scintillation properties associated with intrinsic lattice defects of undoped Y3A5O12 (YAG) and Lu3A 5O12 (LuAG) transparent ceramics and single crystals are compared. The ceramics excited with X-ray demonstrated relatively low emission intensity when compared with that of the single crystals. Decay times of the ceramics and the single crystals were similar. These parameters were approximately 430 ns (YAG ceramic), 460 ns (YAG single crystal), 30 ns and 1090 ns (LuAG ceramic), and 25 ns and 970 ns (LuAG single crystal). According to the pulse height spectra recorded under 137Cs gamma-ray irradiation, the scintillation light yield of the both ceramics were about 2950 ± 290 ph/MeV. However, the single crystals had greater kight yield of about about 14,300 ± 1430 ph/MeV for YAG and 8350 ± 830 ph/MeV for LuAG.

AB - Scintillation properties associated with intrinsic lattice defects of undoped Y3A5O12 (YAG) and Lu3A 5O12 (LuAG) transparent ceramics and single crystals are compared. The ceramics excited with X-ray demonstrated relatively low emission intensity when compared with that of the single crystals. Decay times of the ceramics and the single crystals were similar. These parameters were approximately 430 ns (YAG ceramic), 460 ns (YAG single crystal), 30 ns and 1090 ns (LuAG ceramic), and 25 ns and 970 ns (LuAG single crystal). According to the pulse height spectra recorded under 137Cs gamma-ray irradiation, the scintillation light yield of the both ceramics were about 2950 ± 290 ph/MeV. However, the single crystals had greater kight yield of about about 14,300 ± 1430 ph/MeV for YAG and 8350 ± 830 ph/MeV for LuAG.

KW - Garnet

KW - Scintillator

KW - Transparent ceramic

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