Growth and characterization of strontium metaborate scintillators

Yutaka Fujimoto; Takayuki Yanagida; Yuui Yokota; Noriaki Kawaguchi; Kentaro Fukuda; Daisuke Totsuka; Kenichi Watanabe; Atsushi Yamazaki; Akira Yoshikawa

doi:10.1016/j.optmat.2011.04.016

Growth and characterization of strontium metaborate scintillators

Yutaka Fujimoto, Takayuki Yanagida, Yuui Yokota, Noriaki Kawaguchi, Kentaro Fukuda, Daisuke Totsuka, Kenichi Watanabe, Atsushi Yamazaki, Akira Yoshikawa

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

11 Citations (Scopus)

Abstract

The undoped and 0.5% Ce³⁺-doped strontium metaborate SrB ₂O₄ single crystals has been grown successfully by micro-pulling down method with radio frequency (RF) heating system, and scintillation characteristics including optical properties and radiation response were studied for these crystals. The Ce³⁺-doped SrB ₂O₄ crystal showed absorption band around 240-320 nm, which is corresponding to the 4f-5d transition of Ce³⁺. Intense emission band at 375 nm due to the Ce³⁺ 5d-4f transition was observed under ²⁴¹Am 5.5 MeV α-ray excitation. The scintillation decay time showed fast (50 ns) and slow (1430 ns) components ascribed to the Ce ³⁺ 5d-4f transition and lattice defect in the crystal, respectively. The scintillation light yield of Ce³⁺-doped SrB₂O ₄ was calculated to be about 1000 ph/n under ²⁵²Cf irradiation.

Original language	English
Pages (from-to)	444-447
Number of pages	4
Journal	Optical Materials
Volume	34
Issue number	2
DOIs	https://doi.org/10.1016/j.optmat.2011.04.016
Publication status	Published - 2011 Dec

Keywords

Crystal growth
Micro-pulling down (μ-PD)
Scintillators

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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@article{1d4c3d0172ac40dea87ef279745b097f,

title = "Growth and characterization of strontium metaborate scintillators",

abstract = "The undoped and 0.5% Ce3+-doped strontium metaborate SrB 2O4 single crystals has been grown successfully by micro-pulling down method with radio frequency (RF) heating system, and scintillation characteristics including optical properties and radiation response were studied for these crystals. The Ce3+-doped SrB 2O4 crystal showed absorption band around 240-320 nm, which is corresponding to the 4f-5d transition of Ce3+. Intense emission band at 375 nm due to the Ce3+ 5d-4f transition was observed under 241Am 5.5 MeV α-ray excitation. The scintillation decay time showed fast (50 ns) and slow (1430 ns) components ascribed to the Ce 3+ 5d-4f transition and lattice defect in the crystal, respectively. The scintillation light yield of Ce3+-doped SrB2O 4 was calculated to be about 1000 ph/n under 252Cf irradiation.",

keywords = "Crystal growth, Micro-pulling down (μ-PD), Scintillators",

author = "Yutaka Fujimoto and Takayuki Yanagida and Yuui Yokota and Noriaki Kawaguchi and Kentaro Fukuda and Daisuke Totsuka and Kenichi Watanabe and Atsushi Yamazaki and Akira Yoshikawa",

year = "2011",

month = dec,

doi = "10.1016/j.optmat.2011.04.016",

language = "English",

volume = "34",

pages = "444--447",

journal = "Optical Materials",

issn = "0925-3467",

publisher = "Elsevier",

number = "2",

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T1 - Growth and characterization of strontium metaborate scintillators

AU - Fujimoto, Yutaka

AU - Yanagida, Takayuki

AU - Yokota, Yuui

AU - Kawaguchi, Noriaki

AU - Fukuda, Kentaro

AU - Totsuka, Daisuke

AU - Watanabe, Kenichi

AU - Yamazaki, Atsushi

AU - Yoshikawa, Akira

PY - 2011/12

Y1 - 2011/12

N2 - The undoped and 0.5% Ce3+-doped strontium metaborate SrB 2O4 single crystals has been grown successfully by micro-pulling down method with radio frequency (RF) heating system, and scintillation characteristics including optical properties and radiation response were studied for these crystals. The Ce3+-doped SrB 2O4 crystal showed absorption band around 240-320 nm, which is corresponding to the 4f-5d transition of Ce3+. Intense emission band at 375 nm due to the Ce3+ 5d-4f transition was observed under 241Am 5.5 MeV α-ray excitation. The scintillation decay time showed fast (50 ns) and slow (1430 ns) components ascribed to the Ce 3+ 5d-4f transition and lattice defect in the crystal, respectively. The scintillation light yield of Ce3+-doped SrB2O 4 was calculated to be about 1000 ph/n under 252Cf irradiation.

AB - The undoped and 0.5% Ce3+-doped strontium metaborate SrB 2O4 single crystals has been grown successfully by micro-pulling down method with radio frequency (RF) heating system, and scintillation characteristics including optical properties and radiation response were studied for these crystals. The Ce3+-doped SrB 2O4 crystal showed absorption band around 240-320 nm, which is corresponding to the 4f-5d transition of Ce3+. Intense emission band at 375 nm due to the Ce3+ 5d-4f transition was observed under 241Am 5.5 MeV α-ray excitation. The scintillation decay time showed fast (50 ns) and slow (1430 ns) components ascribed to the Ce 3+ 5d-4f transition and lattice defect in the crystal, respectively. The scintillation light yield of Ce3+-doped SrB2O 4 was calculated to be about 1000 ph/n under 252Cf irradiation.

KW - Crystal growth

KW - Micro-pulling down (μ-PD)

KW - Scintillators

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JO - Optical Materials

JF - Optical Materials

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ER -

Growth and characterization of strontium metaborate scintillators

Abstract

Keywords

ASJC Scopus subject areas

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