Please use this identifier to cite or link to this item: http://hdl.handle.net/11400/4919
Title: Evaluating the effective quantum gain of digital imaging detectors
Authors: Κανδαράκης, Ιωάννης Σ.
Κάβουρας, Διονύσης Α.
Βεντούρας, Ερρίκος Μ.
Παναγιωτάκης, Γεώργιος Σ.
Νομικός, Κωνσταντίνος Δ.
Item type: Conference publication
Conference Item Type: Full Paper
Keywords: Digital imaging detectors;Effective quantum gain;Ψηφιακοί ανιχνευτές απεικόνισης;Αποτελεσματικό κβαντικό κέρδος
Subjects: Medicine
Physics
Ιατρική
Φυσική
Issue Date: 28-Jan-2015
2001
Publisher: International Federation for Medical and Biological Engineering
Abstract: The effective quantum gain of digital imaging detectors, was evaluated in this study. Digital detectors, often consisting of a scintillator-optical sensor combination, are employed in a large variety of medical imaging systems (digital radiography, computed tomography-CT, nuclear imaging-SPECT and PET, portal imaging) . This gain was defined as the number of electrons at the output of the detector per incident x-ray. Scintillator layers were prepared and irradiated in laboratory using x-rays at the diagnostic energy range. Emitted light flux and emission spectra were experimentally determined and combined with sensitivity and detection efficiency data of optical sensors. Results showed that x-ray absorption efficiency, x-ray to light conversion efficiency, wavelength dependent optical attenuation effects, spetral compatibility and incident radiation (x-rays or gamma rays) energy are of importance for selecting the appropriate detector for each imaging technique.
Description: Proceedings of the 9th Mediterranean Conference on Medical & Biological Engineering & Computing), vol. 1
Language: English
Citation: Kandarakis, I., Cavouras, D., Ventouras, E., Panayiotakis, G. and Nomicos, C. (2001). Evaluating the effective quantum gain of digital imaging detectors. In the 9th Mediterranean Conference on Medical & Biological Engineering & Computing. Vol. 1. pp. 527-530. International Federation for Medical and Biological Engineering: Pula, Croatia, 2001.
Conference: Mediterranean Conference on Medical & Biological Engineering & Computing
Access scheme: Embargo
License: Αναφορά Δημιουργού-Μη Εμπορική Χρήση-Όχι Παράγωγα Έργα 3.0 Ηνωμένες Πολιτείες
URI: http://hdl.handle.net/11400/4919
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