Title :
Sensitometric response of Cd1-xZnxTe detectors for chest radiography
Author :
Giakos, George C. ; Dasgupta, Amlan ; Suryanarayanan, Sankararaman ; Chowdhury, Samir ; Guntupalli, Ravi Kumar ; Vedantham, Srinivasan ; Pillai, B. ; Passalaqua, Anthony ; Kollipara, S.
Author_Institution :
Dept. of Biomed. Eng., Akron Univ., OH, USA
fDate :
2/1/1998 12:00:00 AM
Abstract :
The sensitometric response of Cd1-xZnxTe semiconductor detectors using a geometrical chest phantom, within the X-ray diagnostic energy range, has been studied with the aim of optimizing the image quality parameters of these solid state-ionization devices. In addition, the dependence of the spatial resolution of a planar Cd1-xZnxTe substrate on the phantom thickness has been experimentally determined. The results of this study indicate that Cd1-xZnxTe detectors exhibit a high signal-to-noise ratio (S/N)
Keywords :
II-VI semiconductors; X-ray apparatus; cadmium compounds; diagnostic radiography; semiconductor counters; substrates; Cd1-xZnxTe detectors; CdZnTe; X-ray diagnostic energy; chest radiography; geometrical chest phantom; image quality parameters; medical imaging sensor; phantom thickness; sensitometric response; signal-to-noise ratio; solid state-ionization devices; spatial resolution; Image quality; Imaging phantoms; Solids; Spatial resolution; Substrates; Tellurium; X-ray detection; X-ray detectors; X-ray imaging; Zinc;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
