Comparison of the imaging physics performance of a prototype flat-panel detector with a 400-speed screen-film system

Walter Huda; Kent M. Ogden; Marsha L. Roskopf; Charles Rush

doi:10.1117/12.430954

28 June 2001 Comparison of the imaging physics performance of a prototype flat-panel detector with a 400-speed screen-film system

Walter Huda, Kent M. Ogden, Marsha L. Roskopf, Charles Rush

Author Affiliations +

Proceedings Volume 4320, Medical Imaging 2001: Physics of Medical Imaging; (2001) https://doi.org/10.1117/12.430954
Event: Medical Imaging 2001, 2001, San Diego, CA, United States

Abstract

The performance of a digital radiography system that included a prototype flat panel detector (StingRay) was compared with a 400 speed screen-film system. The flat panel detector consisted of a 500 micrometers thick CsI scintillator with an image matrix size of 3k². The limiting spatial resolution of screen-film (approximately 4 line pairs/mm) was superior to that of the flat panel detector (approximately 2.5 line pairs/mm). The digital detector had an excellent linearity response (r² equals 0.997), a dynamic range of 20,000:1, and saturated at a radiation exposure of 60 mR.

Citation Download Citation

Walter Huda, Kent M. Ogden, Marsha L. Roskopf, and Charles Rush "Comparison of the imaging physics performance of a prototype flat-panel detector with a 400-speed screen-film system", Proc. SPIE 4320, Medical Imaging 2001: Physics of Medical Imaging, (28 June 2001); https://doi.org/10.1117/12.430954

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