A study of parameters of scanning Roentgenographic systems

Comparison of ProScan-2000 and ProMatrix-4000 Digital Fluorographs

“…In 2004 we compared the properties of ProScan 7000 fluorograph and a digital X ray fluorograph based on a CCD camera with silicon detectors [1]. It was shown that the characteristics of the two devices obtained in accord with the requirements of the VNIIIMT Standard 01 22 04: "X Ray Image Receivers of X Ray Diagnostic Apparatuses with Digital Image Detection.…”

“…Because scanning fluorographs and fluorographs with optical camera (screen-optics-CCD) were reviewed in [2,3], we only show them in Figs. 1 and 2.…”

“…The contribution of scattered radiation to signal/ noise ratio is calculated from the following equation: (1) where S/N is measured signal/noise ratio, SF is contribu tion of scattered radiation to detected signal during patient examination. The values of effective signal/noise ratio for ProScvan 2000 and ProMatrix 4000 are indicat ed with light markers in Fig.…”