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

被引：30

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

共 20 条

[1] BLASSE G, 1991, EUR J SOL STATE INOR, V28, P767
[2] Intrinsic ultraviolet luminescence from Lu2O3, Lu2SiO5 and Lu2SiO5:Ce3+
Cooke, DW
Bennett, BL
Muenchausen, RE
Lee, JK
Nastasi, MA
[J]. JOURNAL OF LUMINESCENCE, 2004, 106 (02) : 125 - 132
[3] Czochralski growth and laser parameters of RE3+-doped Y2O3 and Sc2O3
Fornasiero, L
Mix, E
Peters, V
Petermann, K
Huber, G
[J]. CERAMICS INTERNATIONAL, 2000, 26 (06) : 589 - 592
[4] Fornasiero L, 1999, CRYST RES TECHNOL, V34, P255, DOI 10.1002/(SICI)1521-4079(199902)34:2<255::AID-CRAT255>3.0.CO
[5] 2-U
[6] Optical and scintillation characteristics of Y2O3 transparent ceramic
Fukabori, Akihiro
Yanagida, Takayuki
Pejchal, Jan
Maeo, Shuji
Yokota, Yuui
Yoshikawa, Akira
Ikegami, Takayasu
Moretti, Federico
Kamada, Kei
[J]. JOURNAL OF APPLIED PHYSICS, 2010, 107 (07)
[7] Fukuda T., 2007, Shaped Crystals
[8] AN ODMR STUDY OF EXCITON TRAPPING IN Y2O3 AND SC2O3
HAYES, W
KANE, MJ
SALMINEN, O
KUZNETSOV, AI
[J]. JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1984, 17 (14): : L383 - L387
[9] MECHANISMS OF EXCITON TRAPPING IN OXIDES
HAYES, W
[J]. JOURNAL OF LUMINESCENCE, 1984, 31-2 (DEC) : 99 - 101
[10] Optimization of spectroscopic properties of Yb3+-doped refractory sesquioxides:: cubic Y2O3, Lu2O3 and monoclinic Gd2O3
Laversenne, L
Guyot, Y
Goutaudier, C
Cohen-Adad, MT
Boulon, G
[J]. OPTICAL MATERIALS, 2001, 16 (04) : 475 - 483

← 1 2 →