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Author Struebing, Christian ♦ Kang, Zhitao ♦ Chong, JooYun ♦ Wagner, Brent ♦ Lee, Gyuhyon ♦ Ding, Yong ♦ Zavala, Martin ♦ Erickson, Anna ♦ Wang, Cai-Lin ♦ Diawara, Yacouba ♦ Engels, Ralf
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword MATERIALS SCIENCE ♦ ABUNDANCE ♦ CALCIUM FLUORIDES ♦ CERAMICS ♦ CRYSTALS ♦ DOPED MATERIALS ♦ ENERGY TRANSFER ♦ EUROPIUM IONS ♦ GLASS ♦ HEAT TREATMENTS ♦ LITHIUM 6 ♦ NANOSTRUCTURES ♦ REFRACTIVE INDEX ♦ SCINTILLATIONS ♦ VISIBLE RADIATION ♦ YIELDS
Abstract There are no efficient Eu{sup 2+} doped glass neutron scintillators reported due to low doping concentrations of Eu{sup 2+} and the amorphous nature of the glass matrix. In this work, an efficient CaF{sub 2}:Eu glass ceramic neutron scintillator was prepared by forming CaF{sub 2}:Eu nanocrystals in a {sup 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 CaF{sub 2} crystals to the Eu{sup 2+} emitting centers. Further light yield improvement is expected if the refractive index of the glass matrix can be matched to the CaF{sub 2} crystal.
ISSN 00036951
Educational Use Research
Learning Resource Type Article
Publisher Date 2016-04-11
Publisher Place United States
Journal Applied Physics Letters
Volume Number 108
Issue Number 15


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