Please use this identifier to cite or link to this item: http://hdl.handle.net/11400/4431
Title: Modeling noise properties of a high resolution CMOS detector for X-ray digital mammography
Authors: Καλύβας, Νεκτάριος Ι.
Μιχαήλ, Χρήστος Μ.
Φούντος, Γεώργιος Π.
Βαλαής, Ιωάννης Γ.
Λιαπαρίνος, Παναγιώτης Φ.
Contributors: Σεφέρης, Ιωάννης Ε.
Σπυροπούλου, Βασιλική Α.
Μυταφίδης, Αλέξανδρος Κ.
Παναγιωτάκης, Γεώργιος Σ.
Κανδαράκης, Ιωάννης Σ.
Item type: Conference publication
Conference Item Type: Full Paper
Keywords: Extended X-ray absorption fine structure;X-ray detection;Απορρόφηση ακτίνων Χ;Ανίχνευση ακτίνων Χ
Subjects: Medicine
Medical technology
Ιατρική
Ιατρική τεχνολογία
Issue Date: 21-Jan-2015
2011
Publisher: IEEE
Abstract: A theoretical model based on Linear Cascaded Systems (LCS) theory was developed in order to study the noise properties of a commercially available high resolution CMOS sensor (RadEye CMOS). The parameters studied were the Normalized Noise Power Spectrum (NNPS) and the Noise Transfer Function (NTF). The modeling was applied to digital mammography conditions. It considered the physical properties of the scintillator incorporated into RadEye CMOS as well as the probability of X-ray absorption directly in the photoreceptor. Furthermore it took into account the pixel pitch and the thickness of the photoreceptor. The model was compared with experimental results obtained from literature. The NTF curves were I good agreement with the experimentally determined. NNPS curves deviations were attributed to the effect of the digitization procedure as well as the non-linear behavior of CMOS detector.
Language: English
Citation: Kalyvas, N., Michail, C., Fountos, G., Valais, I., Liaparinos, P., et al. (October 2011). Modeling noise properties of a high resolution CMOS detector for X-ray digital mammography. In the Nuclear Science Symposium and Medical Imaging Conference. Valencia, 23th-29th October 2011. pp. 2465 - 2470. IEEE.
Conference: Nuclear Science Symposium and Medical Imaging Conference
Access scheme: Embargo
License: Αναφορά Δημιουργού-Μη Εμπορική Χρήση-Όχι Παράγωγα Έργα 3.0 Ηνωμένες Πολιτείες
URI: http://hdl.handle.net/11400/4431
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