Bridgman bulk growth and scintillation measurements of SrI2:Eu2+

被引：49

作者：

Hawrami, R. ^{[1
]}

Glodo, J. ^{[1
]}

Shah, K. S. ^{[1
]}

Cherepy, N. ^{[2
]}

Payne, S. ^{[2
]}

Burger, A. ^{[3
]}

Boatner, L. ^{[4
]}

机构：

[1] Radiat Monitoring Devices Inc, Watertown, MA 02472 USA

[2] LLNL, Livermore, CA 94550 USA

[3] Fisk Univ, Nashville, TN 37208 USA

[4] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA

来源：

JOURNAL OF CRYSTAL GROWTH | 2013年 / 379卷

基金：

美国国家科学基金会;

关键词：

Single crystal growth; Bridgman technique; Growth from melt; Scintillator material; Large diameter scintillator crystals; SrI2:Eu;

D O I：

10.1016/j.jcrysgro.2013.04.035

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Large diameter Bridgman growth of europium activated strontium iodide SrI2:Eu2+ produces crystals with light yield of up to 115,000 ph/MeV with an excellent light yield proportionality. SrI2:Eu2+ exhibits an outstanding energy resolution of better than 3% FWHM at 662 keV. Its emission is centered at 435 nm. The scintillation decays with a 1 mu s time constant for small samples and up to 5 mu s to larger crystals. This paper presents successful progress made in the vertical Bridgman crystal growth of SrI2:Eu2+ and its scintillator properties. Large diameter, crack-free and transparent SrI2:Eu(2+)single crystals with diameters of 1 in., 1.3 in., 1.5 in. and 2 in. were all successfully grown. (c) 2013 Elsevier B.V. All rights reserved.

引用

页码：69 / 72

页数：4

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