Fabrication and properties of Eu:Lu2O3 transparent ceramics for X-ray radiation detectors

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F18%3A00499437" target="_blank" >RIV/68378271:_____/18:00499437 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.optmat.2018.04.029" target="_blank" >http://dx.doi.org/10.1016/j.optmat.2018.04.029</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.optmat.2018.04.029" target="_blank" >10.1016/j.optmat.2018.04.029</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Fabrication and properties of Eu:Lu2O3 transparent ceramics for X-ray radiation detectors

Popis výsledku v původním jazyce

Europium-doped lutetium oxide (Eu:Lu2O3) nano-powders were synthesized by a co-precipitation method from Eu and Lu nitrates using ammonium hydrogen carbonate as the precipitant. Fine and low-agglomerated powders with average particle size of 68 nm were obtained by calcining the precursor at 1100 °C for 4 h. Using this powder as starting material, Eu:Lu2O3 transparent ceramics with the average grain size of ∼46 μm were fabricated by vacuum sintering at 1650 °C for 30 h, whose in-line transmittance reaches 66.3% at 611 nm. The influences of air annealing on optical transmittance, decay time, spectroscopic properties, light output and thermally stimulated luminescence of Eu:Lu2O3 ceramics were investigated. Based on radioluminescence spectra, the light output of the annealed Eu:Lu2O3 ceramics is 10 times higher than that of the commercial BGO single crystal, and it indicates that transparent Eu:Lu2O3 scintillation ceramics is a promising candidate for X-ray radiation detectors.

Název v anglickém jazyce

Fabrication and properties of Eu:Lu2O3 transparent ceramics for X-ray radiation detectors

Popis výsledku anglicky

Europium-doped lutetium oxide (Eu:Lu2O3) nano-powders were synthesized by a co-precipitation method from Eu and Lu nitrates using ammonium hydrogen carbonate as the precipitant. Fine and low-agglomerated powders with average particle size of 68 nm were obtained by calcining the precursor at 1100 °C for 4 h. Using this powder as starting material, Eu:Lu2O3 transparent ceramics with the average grain size of ∼46 μm were fabricated by vacuum sintering at 1650 °C for 30 h, whose in-line transmittance reaches 66.3% at 611 nm. The influences of air annealing on optical transmittance, decay time, spectroscopic properties, light output and thermally stimulated luminescence of Eu:Lu2O3 ceramics were investigated. Based on radioluminescence spectra, the light output of the annealed Eu:Lu2O3 ceramics is 10 times higher than that of the commercial BGO single crystal, and it indicates that transparent Eu:Lu2O3 scintillation ceramics is a promising candidate for X-ray radiation detectors.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10306 - Optics (including laser optics and quantum optics)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Optical Materials

ISSN

0925-3467

e-ISSN

—

Svazek periodika

80

Číslo periodika v rámci svazku

Jun

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

8

Strana od-do

22-29

Kód UT WoS článku

000435053600004

EID výsledku v databázi Scopus

2-s2.0-85046020885