Growth of LGSO: Ce crystals by the Czochralski method

被引：12

作者：

Sidletskiy, O. Ts. ^{[1
]}

Bondar, V. G. ^{[1
]}

Grynyov, B. V. ^{[1
]}

Kurtsev, D. A. ^{[1
]}

Baumer, V. N. ^{[2
]}

Belikov, K. N. ^{[2
]}

Shtitelman, Z. V. ^{[2
]}

Tkachenko, S. A. ^{[1
]}

Zelenskaya, O. V. ^{[1
]}

Starzhinsky, N. G. ^{[1
]}

Tarasov, V. A. ^{[1
]}

机构：

[1] Natl Acad Sci Ukraine, Inst Scintillat Mat, UA-61001 Kharkov, Ukraine

[2] Natl Acad Sci Ukraine, Sci & Technol Corp, Inst Single Crystals, UA-61001 Kharkov, Ukraine

来源：

CRYSTALLOGRAPHY REPORTS | 2009年 / 54卷 / 07期

关键词：

Crystal symmetry - Crystal growth from melt;

D O I：

10.1134/S1063774509070207

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Single crystals of Lu-2x Gd2 - 2x SiO5: Ce (0 < x < 1) compounds with different atomic ratios Lu/(Lu + Gd) have been grown by the Czochralski method. It has been shown that a change in the spatial symmetry from P2(1)/c to C2/c in the course of substitution of lutetium for gadolinium occurs at the ratio Lu/(Lu + Gd) = 0.1. The lattice thus formed with symmetry C2/c in the structure of Lu-2x Gd2 - 2x SiO5: Ce crystals favors the maximum possible incorporation of Ce3+ ions into the sevenfold-coordinated position with respect to oxygen. This explains the substantial improvement of the scintillation characteristics of the grown crystals.

引用

页码：1256 / 1260

页数：5

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