Effect of yttria substitution on the light output of (Gd,Y)2O3:Eu ceramic scintillator

Effects of Gd3+ Substitution on the Fabrication of Transparent (Y1−xGdx)3Al5O12 Ceramics

“…Although most of these merits have been demonstrated in previous works, tuning the properties of YAG by varying its chemical composition has rarely been addressed 13,14 . Gadolinium, with an atomic number of 64 and a high atomic weight of 157, has been adopted to improve the X‐ray stopping power of scintillators 14–16 . In an Eu 3+ ‐doped (Y,Gd) 2 O 3 ceramic scintillator, the high X‐ray absorption coefficient of Gd enables the tuning of the X‐ray stopping length by changing its Gd content 15,16 .…”

Laser-induced spectra change in nanocrystalline GdYO3:Eu3+

“…1. It could be observed that the structure of sample S3 was consisted of monoclinic Gd 2 O 3 and cubic Y 2 O 3 and the other three samples were cubic phase [14]. Corresponding to the Scherrer formula, the particle sizes of the samples S J (J¼1, 2, 3 and 4) were calculated and were 14 nm, 13 nm, 27 nm and 41 nm, respectively.…”

“…There are many factors that influence the quality of powder ceramic GdYO 3 , such as the primary particle size, agglomeration level of powder, sintering temperature and time, final grain size and presence of pores [4,5]. Some researchers found that thin film and nanomaterial GdYO 3 doped with Eu 3 þ ions had very good optical properties [6][7][8][9][10][11][12][13][14]. However, so far, less report can be observed in the laser-induced spectra change of GdYO 3 :Eu 3 þ powder.…”

Effects of calcination atmosphere on monodispersed spherical particles for highly optical transparent yttria ceramics

“…Optically transparent polycrystalline yttria (Y 2 O 3 ) has been considered a promising material for a variety of applications: missile infrared-domes, solid-state laser hosts, scintillators, semiconductor components, etc. [1][2][3][4][5][6][7][8][9][10] Optically transparent yttria has many advantages, such as high melting temperature (2430°C), high corrosion resistance, broad transparency range (0.2-10 lm), and high thermal conductivity [13.6 WÁ(mÁK) À1 ]. 2,11,12 The recent research and reports have shown the fabrication method of transparent yttria via hot pressing, vacuum sintering and hot isostatic pressing (HIP) for superior optical properties.…”