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dc.contributor.author Κανδαράκης, Ιωάννης Σ. el
dc.contributor.author Κάβουρας, Διονύσης Α. el
dc.contributor.author Παναγιωτάκης, Γεώργιος Σ. el
dc.contributor.author Τριάντης, Δήμος Α. el
dc.contributor.author Νομικός, Κωνσταντίνος Δ. el
dc.date.accessioned 2015-04-05T19:01:07Z
dc.date.available 2015-04-05T19:01:07Z
dc.date.issued 2015-04-05
dc.identifier.uri http://hdl.handle.net/11400/8251
dc.rights Αναφορά Δημιουργού-Μη Εμπορική Χρήση-Όχι Παράγωγα Έργα 3.0 Ηνωμένες Πολιτείες *
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/3.0/us/ *
dc.source http://www.elsevier.com en
dc.subject Imaging scintillators
dc.subject Medical imaging devices
dc.subject Optical detector imaging properties
dc.subject Σπινθηριστές απεικόνισης
dc.subject Ιατρικές συσκευές απεικόνισης
dc.subject Ιδιότητες απεικόνισης οπτικού ανιχνευτή
dc.title An experimental method for the determination of spatial-frequency-dependent detective quantum efficiency (DQE) of scintillators used in X-ray imaging detectors en
heal.type journalArticle
heal.classification Medicine
heal.classification Medical physics
heal.classification Ιατρική
heal.classification Ιατρική φυσική
heal.classificationURI http://id.loc.gov/authorities/subjects/sh00006614
heal.classificationURI http://id.loc.gov/authorities/subjects/sh85083001
heal.classificationURI **N/A**-Ιατρική
heal.classificationURI **N/A**-Ιατρική φυσική
heal.identifier.secondary doi:10.1016/S0168-9002(97)00955-8
heal.language en
heal.access free
heal.publicationDate 1997-11-11
heal.bibliographicCitation KANDARAKIS, I.S., CAVOURAS, D.A., PANAYIOTAKIS, G.S., TRIANTIS, D.A. & NOMICOS, C.D. (1997). An experimental method for the determination of spatial-frequency-dependent detective quantum efficiency (DQE) of scintillators used in X-ray imaging detectors. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. [Online] 399 (2-3). p.335-342. Available from: http://www.sciencedirect.com/ [Accessed 17/05/1998] en
heal.abstract The spatial-frequency-dependent detective quantum efficiency (DQE) of imaging scintillators was studied independently of the optical detector (film, photocathode, or photodiode) employed in medical imaging devices. A method was developed to experimentally determine the scintillator DQE in terms of its luminescence efficiency (LE), quantum detection efficiency, modulation transfer function, and light emission spectrum. Gd2O2S : Tb, La2O2S : Tb, Y2O2S : Tb and ZnSCdS : Ag scintillating screens were prepared in laboratory and were excited to luminescence by a medical X-ray tube. Maximum DQE values varied between 0.13 and 0.33 depending on the scintillator material, the screen coating weight, and the tube voltage; Gd2O2S : Tb was superior to La2O2S : Tb followed by ZnSCdS : Ag and Y2O2S : Tb. This ranking was maintained at frequencies up to 100 cycles/cm. Considering the same material, DQE of thin screens was found superior to DQE of thicker screens at medium-to-high frequencies. The proposed method allows for the comparison of imaging characteristics of scintillating materials without the inclusion of optical detector imaging properties. en
heal.publisher Elsevier en
heal.journalName Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment en
heal.journalType peer-reviewed
heal.fullTextAvailability true


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Αναφορά Δημιουργού-Μη Εμπορική Χρήση-Όχι Παράγωγα Έργα 3.0 Ηνωμένες Πολιτείες Except where otherwise noted, this item's license is described as Αναφορά Δημιουργού-Μη Εμπορική Χρήση-Όχι Παράγωγα Έργα 3.0 Ηνωμένες Πολιτείες