Evaluation of characterization of rare-earth doped sesquioxide ceramic scintillators

Yutaka Fujimoto; Takayuki Yanagida; Yui Yokota; Akio Ikesue; Akira Yoshikawa

doi:10.1016/j.optmat.2011.03.049

Evaluation of characterization of rare-earth doped sesquioxide ceramic scintillators

Yutaka Fujimoto, Takayuki Yanagida, Yui Yokota, Akio Ikesue, Akira Yoshikawa

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

11 Citations (Scopus)

Abstract

We investigated basic optical and scintillation properties of pure Y ₂O₃, Tm³⁺-doped Y₂O₃, pure Lu₂O₃ and Nd³⁺-doped Lu₂O ₃ transparent ceramics made by a sintering method. All ceramic samples showed 60-80% transparency, and some absorption bands due to Nd ³⁺ 4f-4f transition were observed in Nd³⁺:Lu ₂O₃ ceramic. Both Tm³⁺:Y₂O ₃ and Nd³⁺:Lu₂O₃ ceramics showed sharp luminescence lines corresponding to the 4f-4f transition under 285 nm (Tm³⁺:Y₂O₃) and 340 nm (Nd³⁺:Lu ₂O₃) excitation. The photoluminescence decay times were calculated to be about 24 μs for Tm³⁺:Y₂O₃ and 1 μs for Nd³⁺:Lu₂O₃, respectively. In radioluminescence measurements, Tm³⁺ and Nd³⁺ 4f-4f luminescence were observed for Tm³⁺-doped Y₂O₃ and Nd³⁺-doped Lu₂O₃ ceramics under ²⁴¹Am 5.5 MeV α-ray excitation. Finally scintillation light yield was investigated with pulse height analysis.

Original language	English
Pages (from-to)	448-451
Number of pages	4
Journal	Optical Materials
Volume	34
Issue number	2
DOIs	https://doi.org/10.1016/j.optmat.2011.03.049
Publication status	Published - 2011 Jan 1

Keywords

4f-4f transition
Scintillators
Sesquioxide
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 = "Evaluation of characterization of rare-earth doped sesquioxide ceramic scintillators",

abstract = "We investigated basic optical and scintillation properties of pure Y 2O3, Tm3+-doped Y2O3, pure Lu2O3 and Nd3+-doped Lu2O 3 transparent ceramics made by a sintering method. All ceramic samples showed 60-80% transparency, and some absorption bands due to Nd 3+ 4f-4f transition were observed in Nd3+:Lu 2O3 ceramic. Both Tm3+:Y2O 3 and Nd3+:Lu2O3 ceramics showed sharp luminescence lines corresponding to the 4f-4f transition under 285 nm (Tm3+:Y2O3) and 340 nm (Nd3+:Lu 2O3) excitation. The photoluminescence decay times were calculated to be about 24 μs for Tm3+:Y2O3 and 1 μs for Nd3+:Lu2O3, respectively. In radioluminescence measurements, Tm3+ and Nd3+ 4f-4f luminescence were observed for Tm3+-doped Y2O3 and Nd3+-doped Lu2O3 ceramics under 241Am 5.5 MeV α-ray excitation. Finally scintillation light yield was investigated with pulse height analysis.",

keywords = "4f-4f transition, Scintillators, Sesquioxide, Transparent ceramic",

author = "Yutaka Fujimoto and Takayuki Yanagida and Yui Yokota and Akio Ikesue and Akira Yoshikawa",

year = "2011",

month = jan,

day = "1",

doi = "10.1016/j.optmat.2011.03.049",

language = "English",

volume = "34",

pages = "448--451",

journal = "Optical Materials",

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T1 - Evaluation of characterization of rare-earth doped sesquioxide ceramic scintillators

AU - Fujimoto, Yutaka

AU - Yanagida, Takayuki

AU - Yokota, Yui

AU - Ikesue, Akio

AU - Yoshikawa, Akira

PY - 2011/1/1

Y1 - 2011/1/1

N2 - We investigated basic optical and scintillation properties of pure Y 2O3, Tm3+-doped Y2O3, pure Lu2O3 and Nd3+-doped Lu2O 3 transparent ceramics made by a sintering method. All ceramic samples showed 60-80% transparency, and some absorption bands due to Nd 3+ 4f-4f transition were observed in Nd3+:Lu 2O3 ceramic. Both Tm3+:Y2O 3 and Nd3+:Lu2O3 ceramics showed sharp luminescence lines corresponding to the 4f-4f transition under 285 nm (Tm3+:Y2O3) and 340 nm (Nd3+:Lu 2O3) excitation. The photoluminescence decay times were calculated to be about 24 μs for Tm3+:Y2O3 and 1 μs for Nd3+:Lu2O3, respectively. In radioluminescence measurements, Tm3+ and Nd3+ 4f-4f luminescence were observed for Tm3+-doped Y2O3 and Nd3+-doped Lu2O3 ceramics under 241Am 5.5 MeV α-ray excitation. Finally scintillation light yield was investigated with pulse height analysis.

AB - We investigated basic optical and scintillation properties of pure Y 2O3, Tm3+-doped Y2O3, pure Lu2O3 and Nd3+-doped Lu2O 3 transparent ceramics made by a sintering method. All ceramic samples showed 60-80% transparency, and some absorption bands due to Nd 3+ 4f-4f transition were observed in Nd3+:Lu 2O3 ceramic. Both Tm3+:Y2O 3 and Nd3+:Lu2O3 ceramics showed sharp luminescence lines corresponding to the 4f-4f transition under 285 nm (Tm3+:Y2O3) and 340 nm (Nd3+:Lu 2O3) excitation. The photoluminescence decay times were calculated to be about 24 μs for Tm3+:Y2O3 and 1 μs for Nd3+:Lu2O3, respectively. In radioluminescence measurements, Tm3+ and Nd3+ 4f-4f luminescence were observed for Tm3+-doped Y2O3 and Nd3+-doped Lu2O3 ceramics under 241Am 5.5 MeV α-ray excitation. Finally scintillation light yield was investigated with pulse height analysis.

KW - 4f-4f transition

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KW - Sesquioxide

KW - Transparent ceramic

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