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

被引：29

作者：

Fukabori, Akihiro ^{[1
]}

Chani, Valery ^{[1
]}

Kamada, Kei ^{[1
,2
]}

Yanagida, Takayuki ^{[1
]}

Yokota, Yuui ^{[1
]}

Moretti, Federico ^{[3
]}

Kawaguchi, Noriaki ^{[4
]}

Yoshikawa, Akira ^{[1
,5
]}

机构：

[1] Tohoku Univ, IMRAM, Aoba Ku, Sendai, Miyagi 9800812, Japan

[2] Furukawa Co Ltd, Tsukuba, Ibaraki 3050856, Japan

[3] Univ Milano Bicocca, Dipartimento Sci Mat, I-20125 Milan, Italy

[4] Tokuyama Corp, Aoba Ku, Sendai, Miyagi 9893204, Japan

[5] Tohoku Univ, NICHe, Aoba Ku, Sendai, Miyagi 9808579, Japan

来源：

JOURNAL OF CRYSTAL GROWTH | 2011年 / 318卷 / 01期

关键词：

Radiation; Growth from melt; Single crystal growth; Oxides; Scintillator materials; HIGH-MELTING SESQUIOXIDES; LUMINESCENCE; OXIDES;

D O I：

10.1016/j.jcrysgro.2010.10.211

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

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 a-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 Am-241 5.5 MeV alpha-rays, in about 920 +/- 92 ph/5.5 MeV alpha, 370 +/- 37 ph/5.5 MeV alpha, and 150 +/- 15 ph/5.5 MeV alpha, respectively. The scintillation decay times of Y2O3, Sc2O3, and Lu2O3 crystals were estimated with following fast/slow parameters 30.1/184, 14.6/51.3, and 16.7 ns, respectively. Furthermore, a-ray imaging was performed using Y2O3 crystal. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：823 / 827

页数：5

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