Composition optimization of scintillating rare-earth nanocrystals in oxide glass-ceramics for radiation spectroscopy

被引：14

作者：

Barta, M. Brooke ^{[1
]}

Nadler, Jason H. ^{[1
]}

Kang, Zhitao ^{[1
]}

Wagner, Brent K. ^{[1
]}

Rosson, Robert ^{[1
]}

Cai, Ye ^{[2
]}

Sandhage, Kenneth H. ^{[2
]}

Kahn, Bernd ^{[1
]}

机构：

[1] Georgia Tech Res Inst, Electroopt Syst Lab, Atlanta, GA 30332 USA

[2] Georgia Inst Technol, Sch Mat Sci & Engn, Atlanta, GA 30332 USA

来源：

APPLIED OPTICS | 2014年 / 53卷 / 16期

基金：

美国国家科学基金会;

关键词：

ENERGY RESOLUTION; GADOLINIUM; GROWTH; SIZE;

D O I：

10.1364/AO.53.000D21

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Glass-ceramic nanocomposites comprising GdBr3/CeBr3 loaded sodium-aluminosilicate glasses in which scintillating crystallites are precipitated in situ from a host glass matrix were studied. This materials system shows promise as an alternative to single-crystal scintillators, with potential to be fabricated into a wide variety of sizes, shapes, and compositions. Batch compositions containing 15-18 mol. % GdBr3 and 3-4 mol. % CeBr3 were prepared and analyzed for photoluminescent light yield. Light yield peaked with rare-earth content of 15 mol. % GdBr3 and 4 mol. % CeBr3. Preliminary ceramization studies on this composition found that the precipitated phase more closely matched a Gd2O3-CeO2 mixture rather than the GdBr3(Ce) that was targeted. (C) 2014 Optical Society of America

引用

页码：D21 / D28

页数：8

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