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Title: Evaluating optical spectral matching of phosphor-photodetector combinations
Authors: Καλύβας, Νεκτάριος Ι.
Βαλαής, Ιωάννης Γ.
Κωσταρίδου, Ελένη
Κανδαράκης, Ιωάννης Σ.
Κάβουρας, Διονύσης Α.
Contributors: Νομικός, Κωνσταντίνος Δ.
Παναγιωτάκης, Γεώργιος Σ.
Item type: Journal article
Keywords: X-ray radiography and digital radiography;X-ray detectors;Ακτινογραφία και ψηφιακή ακτινογραφία με ακτίνες Χ;Ανιχνευτές ακτίνων-Χ
Subjects: Medicine
Issue Date: 19-Jan-2015
Date of availability: 19-Jan-2015
Publisher: IOP Publishing Ltd
Abstract: Phosphor materials are used in medical X-ray imaging combined with various photodetectors suitable for conventional and digital radiography and fluoroscopy. A prerequisite for these combinations is good optical spectral matching, which results in patient dose minimization. In the present work, a recently introduced factor, named OGTE, which accounts for optical gain signal-to-noise ratio transfer efficiency, is utilized for the evaluation of various phosphorphotodetector combinations. The optical photon spectrum of the phosphor materials studied was either determined experimentally, or obtained from literature. These phosphors were examined in conjunction with various photodetectors, which may be suitable for digital imaging. The corresponding optical response functions of the photodetectors were obtained from literature. It was found that there are numerous combinations exhibiting OGTE values above 0.80, which contribute to patient dose minimization.
Description: Part of 4th International Conference on Imaging Technologies in Biomedical Sciences
Language: English
Citation: kalivas, N., Valais, I., Costaridou, L., Kandarakis, I., Cavouras, D., et al. (July 2009). Evaluating optical spectral matching of phosphor-photodetector combinations. Journal of Instrumentation. 4(7). pp. 1-4. IOP Publishing Ltd. Available from:
Journal: Journal of Instrumentation
Type of Journal: With a review process (peer review)
Access scheme: Publicly accessible
License: Αναφορά Δημιουργού-Μη Εμπορική Χρήση-Όχι Παράγωγα Έργα 3.0 Ηνωμένες Πολιτείες
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