Scintillator and CMOS APS imager for radiography conditions

We evaluated X-ray image performance for several scintillators and a CMOS APS imager by both diagnostic radiography and, mammography conditions. Commercially available scintillators such as Lanex screen, needle structured CsI (TI), and fiber optic structured CsI (TI) were coupled with a CMOS APS imager. The X-ray machines used in this study were fixed tube voltage of 80 kVp and variable tube current over 0.33 mA using LISTEM(TM) for diagnostic radiography, and fixed tube voltage of 28 kVp and variable tube current over 16 mA using Alpha-ST(TM) for mammography. We used the RadEye1(TM) CMOS APS imager having an active area of 25 mm by 50 mm with the pixel size of 48 mu m.