Comparative study of transparent ceramic and single crystal Ce doped LuAG scintillators

Takayuki Yanagida; Yutaka Fujimoto; Yuui Yokota; Kei Kamada; Satoko Yanagida; Akira Yoshikawa; Hideki Yagi; Takagimi Yanagitani

doi:10.1016/j.radmeas.2011.03.039

Comparative study of transparent ceramic and single crystal Ce doped LuAG scintillators

Takayuki Yanagida, Yutaka Fujimoto, Yuui Yokota, Kei Kamada, Satoko Yanagida, Akira Yoshikawa, Hideki Yagi, Takagimi Yanagitani

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

65 Citations (Scopus)

Abstract

Transparent ceramic Ce 0.5% doped Lu₃Al₅O ₁₂ (LuAG) scintillator grown by the sintering method and single crystalline Ce doped LuAG grown by the Czochralski method are prepared. They are cut to the physical dimensions 4 × 4 × 2 mm³. Their transmittance and radio luminescence spectra are evaluated. They are both transmissive in wavelength longer than 500 nm and intense Ce³⁺ 5d-4f emission appears around 520 nm. When ¹³⁷Cs γ-ray is irradiated, 662 keV photo-absorption peaks are clearly observed in each sample. The transparent ceramic one shows higher light yield than that of the single crystalline one. The absolute light yield of the ceramic sample is turned out to be 14800 ± 1500 ph/MeV. The decay time constants are evaluated under pulse X-ray excitation. The main component of the decay time of ceramic and single crystalline one are determined as 37 and 46 ns, respectively.

Original language	English
Pages (from-to)	1503-1505
Number of pages	3
Journal	Radiation Measurements
Volume	46
Issue number	12
DOIs	https://doi.org/10.1016/j.radmeas.2011.03.039
Publication status	Published - 2011 Dec

Keywords

Ceramic
Lu AlO
Scintillation detector
Scintillation yield
Single crystal

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10.1016/j.radmeas.2011.03.039

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title = "Comparative study of transparent ceramic and single crystal Ce doped LuAG scintillators",

abstract = "Transparent ceramic Ce 0.5% doped Lu3Al5O 12 (LuAG) scintillator grown by the sintering method and single crystalline Ce doped LuAG grown by the Czochralski method are prepared. They are cut to the physical dimensions 4 × 4 × 2 mm3. Their transmittance and radio luminescence spectra are evaluated. They are both transmissive in wavelength longer than 500 nm and intense Ce3+ 5d-4f emission appears around 520 nm. When 137Cs γ-ray is irradiated, 662 keV photo-absorption peaks are clearly observed in each sample. The transparent ceramic one shows higher light yield than that of the single crystalline one. The absolute light yield of the ceramic sample is turned out to be 14800 ± 1500 ph/MeV. The decay time constants are evaluated under pulse X-ray excitation. The main component of the decay time of ceramic and single crystalline one are determined as 37 and 46 ns, respectively.",

keywords = "Ceramic, Lu AlO, Scintillation detector, Scintillation yield, Single crystal",

author = "Takayuki Yanagida and Yutaka Fujimoto and Yuui Yokota and Kei Kamada and Satoko Yanagida and Akira Yoshikawa and Hideki Yagi and Takagimi Yanagitani",

note = "Funding Information: This work was mainly supported by JST Sentan and partially supported by a Grant in Aid for Young Scientists (B)-15686001, and (A)-19686001 from the Ministry of Education, Culture, Sports, Science and Technology of the Japanese government (MEXT) . This work is also supported by Ministry of Health and Welfare , Grant-in-Aid for the development of medical instruments. Partial support of the Yazaki Memorial Foundation for Science and Technology , Japan Science Society , Sumitomo Foundation , and Iketani Science and Technology Foundation , are also gratefully acknowledged.",

year = "2011",

month = dec,

doi = "10.1016/j.radmeas.2011.03.039",

language = "English",

volume = "46",

pages = "1503--1505",

journal = "Radiation Measurements",

issn = "1350-4487",

publisher = "Elsevier Ltd.",

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AU - Yanagida, Takayuki

AU - Fujimoto, Yutaka

AU - Yokota, Yuui

AU - Kamada, Kei

AU - Yanagida, Satoko

AU - Yoshikawa, Akira

AU - Yagi, Hideki

AU - Yanagitani, Takagimi

N1 - Funding Information: This work was mainly supported by JST Sentan and partially supported by a Grant in Aid for Young Scientists (B)-15686001, and (A)-19686001 from the Ministry of Education, Culture, Sports, Science and Technology of the Japanese government (MEXT) . This work is also supported by Ministry of Health and Welfare , Grant-in-Aid for the development of medical instruments. Partial support of the Yazaki Memorial Foundation for Science and Technology , Japan Science Society , Sumitomo Foundation , and Iketani Science and Technology Foundation , are also gratefully acknowledged.

PY - 2011/12

Y1 - 2011/12

N2 - Transparent ceramic Ce 0.5% doped Lu3Al5O 12 (LuAG) scintillator grown by the sintering method and single crystalline Ce doped LuAG grown by the Czochralski method are prepared. They are cut to the physical dimensions 4 × 4 × 2 mm3. Their transmittance and radio luminescence spectra are evaluated. They are both transmissive in wavelength longer than 500 nm and intense Ce3+ 5d-4f emission appears around 520 nm. When 137Cs γ-ray is irradiated, 662 keV photo-absorption peaks are clearly observed in each sample. The transparent ceramic one shows higher light yield than that of the single crystalline one. The absolute light yield of the ceramic sample is turned out to be 14800 ± 1500 ph/MeV. The decay time constants are evaluated under pulse X-ray excitation. The main component of the decay time of ceramic and single crystalline one are determined as 37 and 46 ns, respectively.

AB - Transparent ceramic Ce 0.5% doped Lu3Al5O 12 (LuAG) scintillator grown by the sintering method and single crystalline Ce doped LuAG grown by the Czochralski method are prepared. They are cut to the physical dimensions 4 × 4 × 2 mm3. Their transmittance and radio luminescence spectra are evaluated. They are both transmissive in wavelength longer than 500 nm and intense Ce3+ 5d-4f emission appears around 520 nm. When 137Cs γ-ray is irradiated, 662 keV photo-absorption peaks are clearly observed in each sample. The transparent ceramic one shows higher light yield than that of the single crystalline one. The absolute light yield of the ceramic sample is turned out to be 14800 ± 1500 ph/MeV. The decay time constants are evaluated under pulse X-ray excitation. The main component of the decay time of ceramic and single crystalline one are determined as 37 and 46 ns, respectively.

KW - Ceramic

KW - Lu AlO

KW - Scintillation detector

KW - Scintillation yield

KW - Single crystal

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Comparative study of transparent ceramic and single crystal Ce doped LuAG scintillators

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