Cd1-xZnxTe Detectors for Digital X-Ray Chest Imaging
G. C. GIAKOS, B. PILLAI, S. CHOWDHURY, S. VEDANTHAM, A. DASGUPTA, S. KOLLIPARA, A. PASSALAQUA, AND R. J. ENDORF
ABSTRACT
Radiographic studies with the aim of optimizing the imaging potential of Cd1-xZnxTe detectors for digital chest radiography have been performed. A geometrical chest phantom has been designed, and the dependence of both the signal-to-noise ratio and contrast resolution of a planar Cd1-xZnxTe detector on the phantom thickness has been experimentally determined. Specifically, the detected signal and noise contributions were measured and related to phantom thickness. The results of this study indicate that Cd1-xZnxTe detectors exhibit both high signal-to-noise ratio and contrast resolution. At present time, several studies are in process to experimentally identify and quantify the imaging potential of Cd1-xZnxTe detectors for digital radiographic applications.
Publication Source: Journal of X-Ray Science and Technology, ISSN: 0895-3996. Volume 8, Number 2, 1998. Pages: 305... Publisher:IOS Press - Amsterdam
