A neutron scintillator based on transparent nanocrystalline CaF2: Eu glass ceramic

被引：35

作者：

Struebing, Christian ^{[1
,2
]}

Chong, JooYun ^{[1
]}

Lee, Gyuhyon ^{[2
]}

Zavala, Martin ^{[3
]}

Erickson, Anna ^{[3
]}

Ding, Yong ^{[2
]}

Wang, Cai-Lin ^{[4
]}

Diawara, Yacouba ^{[4
]}

Engels, Ralf ^{[5
]}

Wagner, Brent ^{[1
]}

Kang, Zhitao ^{[1
,2
]}

机构：

[1] Georgia Inst Technol, Georgia Tech Res Inst, Atlanta, GA 30332 USA

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

[3] Georgia Inst Technol, George W Woodruff Sch Mech Engn, Atlanta, GA 30332 USA

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

[5] Forschungszentrum Julich, D-52425 Julich, Germany

来源：

APPLIED PHYSICS LETTERS | 2016年 / 108卷 / 15期

关键词：

INORGANIC SCINTILLATORS;

D O I：

10.1063/1.4945999

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

There are no efficient Eu2+ doped glass neutron scintillators reported due to low doping concentrations of Eu2+ and the amorphous nature of the glass matrix. In this work, an efficient CaF2: Eu glass ceramic neutron scintillator was prepared by forming CaF2: Eu nanocrystals in a 6 Li-containing glass matrix. Through appropriate thermal treatments, the scintillation light yield of the transparent glass ceramic was increased by a factor of at least 46 compared to the as-cast amorphous glass. This improvement was attributed to more efficient energy transfer from the CaF2 crystals to the Eu2+ emitting centers. Further light yield improvement is expected if the refractive index of the glass matrix can be matched to the CaF2 crystal. Published by AIP Publishing.

引用

页数：4

共 18 条

[1]

Buchanan R. A., 1992, US Pat, Patent No. [5122671A, 5122671]

[2]

Cherepy N.J., 2010, P SOC PHOTO-OPT INS, V7805

[3] New transparent glass-ceramics containing large grain Eu3+:CaF2 nanocrystals [J].

Deng, Wei ;

Cheng, Jin-shu .

MATERIALS LETTERS, 2012, 73 :112-114

[4] Intense photoluminescence at 2.7 μm in transparent Er3+:CaF2-fluorophosphate glass microcomposite [J].

Fan, Jintai ;

Yuan, Xinqiang ;

Li, Rihong ;

Dong, Hongxing ;

Wang, Jun ;

Zhang, Long .

OPTICS LETTERS, 2011, 36 (22) :4347-4349

[5] Scintillation from Eu2+ in Nanocrystallized Glass [J].

Fu, Jie ;

Kobayashi, Masaaki ;

Sugimoto, Shojiro ;

Parker, John M. .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2009, 92 (09) :2119-2121

[6]

Ginther RJ., 1960, IRE T NUCL SCI, V7, P28

[7]

Glodo J, 2005, IEEE NUCL SCI CONF R, P112

[8]

Han C., 2011, P SOC PHOTO-OPT INS, V8142, p8120R

[9] Crystallization and spectroscopic properties investigations of Er3+ doped transparent glass ceramics containing CaF2 [J].

Hu, ZJ ;

Wang, YS ;

Ma, E ;

Bao, F ;

Yu, YL ;

Chen, DQ .

MATERIALS RESEARCH BULLETIN, 2006, 41 (01) :217-224

[10]

Huang L., 2007, APPL PHYS LETT, V90

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