Signal-to-noise-ratio (SNR) of X-ray imaging scintillators determined by luminescence measurements

Κάβουρας, Διονύσης Α.; Κανδαράκης, Ιωάννης Σ.; Κανελλόπουλος, Μ.; Νομικός, Κωνσταντίνος Δ.; Παναγιωτάκης, Γεώργιος Σ.

Ημερομηνία Δημοσίευσης: 1999

Τύπος Τεκμηρίου: Δημοσίευση σε περιοδικό

Όνομα Περιοδικού: Applied Radiation and Isotopes

A new method for studying the signal-to-noise-ratio (SNR) of X-ray imaging scintillators was developed. SNR was expressed in terms of the X-ray luminescence efficiency (XLE) the X-ray to emitted light conversion efficiency and the mean light photon energy. Laboratory prepared Gd2O2S:Tb, La2O2S:Tb and Y2O2S:Tb scintillator screens were tested and best results were obtained for the 80 mg/cm2 Gd2O2S:Tb screen. The method proposed allows for scintillator comparison on the basis of XLE and wavelength measurements.

Πηγή: http://www.sciencedirect.com/science/article/pii/S0969804398001365

Θέμα: Medicine, Physics, Ιατρική, Φυσική

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