Phosphors for X-ray detectors in computed tomography

Eu3+ (orange/red) luminescence in LiXSO4Cl (X = Mg, Zn) halosulfate phosphor

“…[3][4][5][6] Europium-doped fluoride, [7] borophasphate [8] and yttrium oxide, [9] a common red phosphor in lighting and display applications, can be used as phosphor materials with many practical applications in mercury-free fluorescent lamps and color plasma display panels.In many of these applications inorganic solids doped with rare earth impurities are used. To understand how the rare earth impurities make various applications possible, it is necessary to know the luminescence characteristics of these materials.…”

Synthesis of Eu3+ doped Gd2O3–HfO2 nanopowder for radiation detection

“…Requirements for ideal scintillators used in X-CT are high density and atomic number, high light output, short decay time without afterglow, suitable emission wavelength, good mechanical properties, high radiation hardness and low cost [1][2][3]. Although many scintillating crystals are successfully employed in practical applications, transparent ceramic scintillators are still the dominating scintillator used in medical X-ray computed tomography.…”

Thermo and photoluminescence properties of Eu3+ activated hexagonal, monoclinic and cubic gadolinium oxide nanorods

“…Eu 3+ activated Gd 2 O 3 is one of the important red-emitting phosphor, which is a promising host matrix for multiphoton and up-conversion excitation [20,21]. It exhibits paramagnetic behavior as well as strong UV and cathode-ray excited luminescence, which are useful in biological fluorescent labeling and display applications [22,23], efficient X-ray and thermo luminescent phosphor [24]. In our earlier report a detailed synthesis of various phases of Eu activated gadolinium oxide nanorods and characterization such as structure, SEM, TEM, FTIR and Raman studies are reported.…”