The micro-pulling-down growth of Bi4Si3O12 (BSO) and Bi4Ge3O12 (BGO) fiber crystals and their scintillation efficiency

被引：27

作者：

Zhuravleva, Mariya ^{[1
]}

Chani, Valery I. ^{[1
]}

Yanagida, Takayuki ^{[1
]}

Yoshikawa, Akira ^{[1
]}

机构：

[1] Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Sendai, Miyagi 9808577, Japan

来源：

JOURNAL OF CRYSTAL GROWTH | 2008年 / 310卷 / 7-9期

关键词：

growth from melt; micro-pulling-down method; bismuth compounds; oxides; scintillator materials; scintillators;

D O I：

10.1016/j.jcrysgro.2007.11.177

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

The micro-pulling-down growth and characterization of Bi4Si3O12 and Bi4Ge3O12 fiber crystals for scintillation applications are reported. The diameter of the crystals varied from 0.1 to 1.0 mm. The results demonstrate that this technology is suitable for development of miniature imaging sensors particularly for the application in Positron Emission Tomography. The crystals were produced from the crucibles that had different shapes of the die: conventional tubular one and that made of two parallel plates with the melt sited between the plates (double-plate die). The quality of the crystals is discussed based on backscattered electron imaging results. Basic scintillation performance was tested in order to evaluate the scintillation efficiency of BGO and BSO fiber crystals coupled to a photomultiplier tube. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：2152 / 2156

页数：5

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