Premium
Characterization of High‐Gadolinium Y 0.6 Gd 1.34 Eu 0.06 O 3 Powder and Fabrication of Transparent Ceramic Scintillator Using Pressureless Sintering
Author(s) -
Li Xiaodong,
Sun Xudong,
Li JiGuang,
Xiu Zhimeng,
Gao Tie,
Liu Yig,
Hu Xiaozhi
Publication year - 2010
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/j.1744-7402.2008.02351.x
Subject(s) - materials science , ceramic , sintering , gadolinium , calcination , transparent ceramics , scintillator , fabrication , analytical chemistry (journal) , mineralogy , metallurgy , optics , catalysis , chromatography , medicine , biochemistry , chemistry , physics , alternative medicine , pathology , detector
Comparatively high gadolinium contents are of primary importance for (Y,Gd) 2 O 3 :Eu scintillators because of expected higher scintillation intensity and higher light output of the materials. Transparent Y 0.6 Gd 1.34 Eu 0.06 O 3 ceramic, with a high gadolinium composition of ∼67 mol%, has been fabricated via vacuum sintering using synthesized sinterable powders. The precursor powder was coprecipitated with ammonium hydrogen carbonate as the precipitant and the powder calcined at 1100°C showed the best sintering activity. Transparent Y 0.6 Gd 1.34 Eu 0.06 O 3 ceramic, exhibiting an in‐line transmittance of 66.7% at 610 nm, was obtained by vacuum sintering at 1670°C for 2 h. Under X‐ray excitation, the ceramic exhibited characteristic emissions of the Eu 3+ ions.