Growth of Y2O3, Sc2O3 and Lu2O3 crystals by the micro-pulling-down method and their optical and scintillation characteristics

Akihiro Fukabori; Valery Chani; Kei Kamada; Takayuki Yanagida; Yuui Yokota; Federico Moretti; Noriaki Kawaguchi; Akira Yoshikawa

doi:10.1016/j.jcrysgro.2010.10.211

Growth of Y₂O₃, Sc₂O₃ and Lu₂O₃ crystals by the micro-pulling-down method and their optical and scintillation characteristics

Akihiro Fukabori, Valery Chani, Kei Kamada, Takayuki Yanagida, Yuui Yokota, Federico Moretti, Noriaki Kawaguchi, Akira Yoshikawa

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

27 Citations (Scopus)

Abstract

The growth of Y₂O₃, Sc₂O₃, and Lu₂O₃ single crystals using the micro-pulling-down method is reported. Crystallinity, optical transmittance, and scintillation characteristics including emission spectra, pulse height spectra, and decay kinetics under α-ray excitation of the grown crystals were studied. The light yields of Y₂O₃, Sc₂O₃, and Lu₂O₃ crystals were estimated from the pulse height spectra excited by ²⁴¹Am 5.5 MeV α-rays, in about 920±92 ph/5.5 MeVα, 370±37 ph/5.5 MeVα, and 150±15 ph/5.5 MeVα, respectively. The scintillation decay times of Y₂O ₃, Sc₂O₃, and Lu₂O₃ crystals were estimated with following fast/slow parameters 30.1/184, 14.6/51.3, and 16.7 ns, respectively. Furthermore, α-ray imaging was performed using Y₂O₃ crystal.

Original language	English
Pages (from-to)	823-827
Number of pages	5
Journal	Journal of Crystal Growth
Volume	318
Issue number	1
DOIs	https://doi.org/10.1016/j.jcrysgro.2010.10.211
Publication status	Published - 2011 Mar 1

Keywords

A1. Radiation
A2. Growth from melt
A3. Single crystal growth
B1. Oxides
B2. Scintillator materials

ASJC Scopus subject areas

Condensed Matter Physics
Inorganic Chemistry
Materials Chemistry

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Growth of Y₂O₃, Sc₂O₃ and Lu₂O₃ crystals by the micro-pulling-down method and their optical and scintillation characteristics. / Fukabori, Akihiro; Chani, Valery; Kamada, Kei; Yanagida, Takayuki; Yokota, Yuui; Moretti, Federico; Kawaguchi, Noriaki; Yoshikawa, Akira.

In: Journal of Crystal Growth, Vol. 318, No. 1, 01.03.2011, p. 823-827.

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

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abstract = "The growth of Y2O3, Sc2O3, and Lu2O3 single crystals using the micro-pulling-down method is reported. Crystallinity, optical transmittance, and scintillation characteristics including emission spectra, pulse height spectra, and decay kinetics under α-ray excitation of the grown crystals were studied. The light yields of Y2O3, Sc2O3, and Lu2O3 crystals were estimated from the pulse height spectra excited by 241Am 5.5 MeV α-rays, in about 920±92 ph/5.5 MeVα, 370±37 ph/5.5 MeVα, and 150±15 ph/5.5 MeVα, respectively. The scintillation decay times of Y2O 3, Sc2O3, and Lu2O3 crystals were estimated with following fast/slow parameters 30.1/184, 14.6/51.3, and 16.7 ns, respectively. Furthermore, α-ray imaging was performed using Y2O3 crystal.",

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