Title of article :
Signal-to-noise-ratio (SNR) of X-ray imaging scintillators determined by luminescence measurements
Author/Authors :
D. Cavouras، نويسنده , , I. Kandarakis، نويسنده , , M. Kanellopoulos، نويسنده , , C. D. Nomicos، نويسنده , , G. S. Panayiotakis، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 1999
Abstract :
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.
Keywords :
signal noise ratio , x ray , luminescence , Gadolinium , terbium , yttrium , lanthanum , Scintillation
Journal title :
Applied Radiation and Isotopes
Journal title :
Applied Radiation and Isotopes
