GOS Scintillator Ceramic
Ceramic scintillators based on the composition Gd2O2S: Pr: Ce have high efficiency in converting X- rays into light rays, a decay time (t1/10 = 5.5 us) short enough to permit repeated imaging with an interval of 1 ms, low phosphorescence, and high radiation stability. Because of the combination of these properties, they have become widely used in medical computerized tomography. Gadolinium oxysulfide (Gd2O2S) is also to produce phosphors and scintillation ceramics for color television picture tubes, medical imaging equipment, and up conversion luminescence, due to its wide-gap (4.6– 4.8eV), high chemical stability and high density. The present GOS scintillation ceramics are very promising as scintillator materials for X-ray CT detector applications.
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