Fabrication and scintillation properties of Pr:Lu3Al5O12 transparent ceramics from co-precipitated nanopowders

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F20%3A00533013" target="_blank" >RIV/68378271:_____/20:00533013 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.jallcom.2019.152885" target="_blank" >https://doi.org/10.1016/j.jallcom.2019.152885</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jallcom.2019.152885" target="_blank" >10.1016/j.jallcom.2019.152885</a>

Result language
angličtina
Original language name
Fabrication and scintillation properties of Pr:Lu3Al5O12 transparent ceramics from co-precipitated nanopowders
Original language description
In this work, 0.25 at%Pr:Lu3Al5O12 transparent ceramics were prepared from the coprecipitated nanopowders without any sintering aids. Ammonium hydrogen carbonate was used as precipitant and the influences of precipitant to metal ions molar ratio on nanopowders and ceramics were investigated. Excessive or insufficient precipitant will worsen the phase-purity and dispersity of the nanopowders. The nonuniform dissolution of the Lu and Al precipitants in the titration and washing process, which results in the nonstoichiometry of Al excess in the ceramics and deteriorates the optical quality. After optimizing the ratio of Lu/Al in raw powders, Pr:Lu3Al5O12 ceramics with the in-line transmittance above 80% in the visible band were obtained. The light yield is 7086 Ph/MeV and the energy resolution is 16.9% which is inferior to that of the good Pr:Lu3Al5O12 crystal. The low valent cation impurities in the raw material increase the concentration of Pr4+ and diminish the light yield.n
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Project
<a href="/en/project/GA16-15569S" target="_blank" >GA16-15569S: Fast thin film scintillators for high resolution 2D-imaging</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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