Crystal growth and scintillation properties of Ce and Sr co-doped (Gd,Y)F3 single crystals

Kei Kamada; Takayuki Yanagida; Kenji Aoki; Natalia Solovieva; Martin Nikl; Akihiro Fukabori; Akira Yoshikawa

doi:10.1016/j.jcrysgro.2010.06.003

Crystal growth and scintillation properties of Ce and Sr co-doped (Gd,Y)F₃ single crystals

Kei Kamada, Takayuki Yanagida, Kenji Aoki, Natalia Solovieva, Martin Nikl, Akihiro Fukabori, Akira Yoshikawa

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

4 Citations (Scopus)

Abstract

In this study, (Gd_1-xY_x)F₃ (x=0.2, 0.4, 0.5 0.6 and 0.8) crystals were grown by the μ-PD method. Neither visible inclusions nor cracks were observed in (Gd_1-xY_x)F ₃ (x=0.4, 0.5 and 0.6) crystals. Lattice constants increase linearly as the Y³ concentration decreases. Using (Gd_1-xY _x)F₃ as a host material, the Sr0.5% Ce1%, 3%, 5% and 7% co-doped Gd_0.5Y_0.5F₃ single crystal was prepared. In this crystal, Ce³-perturbed luminescence at 380 nm is observed with 31.8 ns photoluminescence decay time. Under X-ray excitation rather high radioluminescence intensity of this band was obtained exceeding that of BGO scintillator. The energy transfer in the sequence of regular Ce ³→ (Gd³)_n→ perturbed Ce³ sites was evidenced though observation of decay time shortening of the regular Ce³ and Gd³ centers and intensity change between Gd ³ and Ce³-perturbed emission.

Original language	English
Pages (from-to)	37-41
Number of pages	5
Journal	Journal of Crystal Growth
Volume	313
Issue number	1
DOIs	https://doi.org/10.1016/j.jcrysgro.2010.06.003
Publication status	Published - 2010 Dec 15

Keywords

A1. Luminescence
A2. Fluoride
A2. Micro-Pulling-Down method
A2. Single crystal
B1. Scintillator

ASJC Scopus subject areas

Condensed Matter Physics
Inorganic Chemistry
Materials Chemistry

Access to Document

10.1016/j.jcrysgro.2010.06.003

Cite this

@article{2666b3b47ab24c1489586bb3a489e0dc,

title = "Crystal growth and scintillation properties of Ce and Sr co-doped (Gd,Y)F3 single crystals",

abstract = "In this study, (Gd1-xYx)F3 (x=0.2, 0.4, 0.5 0.6 and 0.8) crystals were grown by the μ-PD method. Neither visible inclusions nor cracks were observed in (Gd1-xYx)F 3 (x=0.4, 0.5 and 0.6) crystals. Lattice constants increase linearly as the Y3 concentration decreases. Using (Gd1-xY x)F3 as a host material, the Sr0.5% Ce1%, 3%, 5% and 7% co-doped Gd0.5Y0.5F3 single crystal was prepared. In this crystal, Ce3-perturbed luminescence at 380 nm is observed with 31.8 ns photoluminescence decay time. Under X-ray excitation rather high radioluminescence intensity of this band was obtained exceeding that of BGO scintillator. The energy transfer in the sequence of regular Ce 3→ (Gd3)n→ perturbed Ce3 sites was evidenced though observation of decay time shortening of the regular Ce3 and Gd3 centers and intensity change between Gd 3 and Ce3-perturbed emission.",

keywords = "A1. Luminescence, A2. Fluoride, A2. Micro-Pulling-Down method, A2. Single crystal, B1. Scintillator",

author = "Kei Kamada and Takayuki Yanagida and Kenji Aoki and Natalia Solovieva and Martin Nikl and Akihiro Fukabori and Akira Yoshikawa",

year = "2010",

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T1 - Crystal growth and scintillation properties of Ce and Sr co-doped (Gd,Y)F3 single crystals

AU - Kamada, Kei

AU - Yanagida, Takayuki

AU - Aoki, Kenji

AU - Solovieva, Natalia

AU - Nikl, Martin

AU - Fukabori, Akihiro

AU - Yoshikawa, Akira

PY - 2010/12/15

Y1 - 2010/12/15

N2 - In this study, (Gd1-xYx)F3 (x=0.2, 0.4, 0.5 0.6 and 0.8) crystals were grown by the μ-PD method. Neither visible inclusions nor cracks were observed in (Gd1-xYx)F 3 (x=0.4, 0.5 and 0.6) crystals. Lattice constants increase linearly as the Y3 concentration decreases. Using (Gd1-xY x)F3 as a host material, the Sr0.5% Ce1%, 3%, 5% and 7% co-doped Gd0.5Y0.5F3 single crystal was prepared. In this crystal, Ce3-perturbed luminescence at 380 nm is observed with 31.8 ns photoluminescence decay time. Under X-ray excitation rather high radioluminescence intensity of this band was obtained exceeding that of BGO scintillator. The energy transfer in the sequence of regular Ce 3→ (Gd3)n→ perturbed Ce3 sites was evidenced though observation of decay time shortening of the regular Ce3 and Gd3 centers and intensity change between Gd 3 and Ce3-perturbed emission.

AB - In this study, (Gd1-xYx)F3 (x=0.2, 0.4, 0.5 0.6 and 0.8) crystals were grown by the μ-PD method. Neither visible inclusions nor cracks were observed in (Gd1-xYx)F 3 (x=0.4, 0.5 and 0.6) crystals. Lattice constants increase linearly as the Y3 concentration decreases. Using (Gd1-xY x)F3 as a host material, the Sr0.5% Ce1%, 3%, 5% and 7% co-doped Gd0.5Y0.5F3 single crystal was prepared. In this crystal, Ce3-perturbed luminescence at 380 nm is observed with 31.8 ns photoluminescence decay time. Under X-ray excitation rather high radioluminescence intensity of this band was obtained exceeding that of BGO scintillator. The energy transfer in the sequence of regular Ce 3→ (Gd3)n→ perturbed Ce3 sites was evidenced though observation of decay time shortening of the regular Ce3 and Gd3 centers and intensity change between Gd 3 and Ce3-perturbed emission.

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KW - B1. Scintillator

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