Evaluating x-ray detectors for radiographic applications:

dc.contributor.author	Κανδαράκης, Ιωάννης Σ.	el
dc.contributor.author	Κάβουρας, Διονύσης Α.	el
dc.contributor.author	Παναγιωτάκης, Γεώργιος Σ.	el
dc.contributor.author	Νομικός, Κωνσταντίνος Δ.	el
dc.date.accessioned	2015-05-04T09:46:05Z
dc.date.available	2015-05-04T09:46:05Z
dc.date.issued	2015-05-04
dc.identifier.uri	http://hdl.handle.net/11400/9624
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://iopscience.iop.org/0031-9155/42/7/009	en
dc.subject	Radiographic image
dc.subject	Optical detectors
dc.subject	Ακτινογραφική εικόνα
dc.subject	Οπτικοί ανιχνευτές
dc.title	Evaluating x-ray detectors for radiographic applications:	en
heal.type	journalArticle
heal.secondaryTitle	a comparison of ZnSCdS:Ag with Gd2O2S:Tb and Y2O2S:Tb screens	en
heal.classification	Medicine
heal.classification	Biomedical engineering
heal.classification	Ιατρική
heal.classification	Βιοϊατρική τεχνολογία
heal.classificationURI	http://id.loc.gov/authorities/subjects/sh00006614
heal.classificationURI	http://id.loc.gov/authorities/subjects/sh85014237
heal.classificationURI	N/A-Ιατρική
heal.classificationURI	N/A-Βιοϊατρική τεχνολογία
heal.keywordURI	http://id.loc.gov/authorities/subjects/sh85095144
heal.identifier.secondary	doi:10.1088/0031-9155/42/7/009
heal.language	en
heal.access	campus
heal.recordProvider	Τ.Ε.Ι. Αθήνας. Σχολή Τεχνολογικών Εφαρμογών. Τμήμα Μηχανικών Βιοϊατρικής Τεχνολογίας Τ.Ε.	el
heal.publicationDate	1997
heal.bibliographicCitation	Kandarakis, I., Cavouras, D., Panayiotakis, G. and Nomicos, C. (1997). Evaluating x-ray detectors for radiographic applications: a comparison of ZnSCdS:Ag with Gd2O2S:Tb and Y2O2S:Tb screens. Physics in Medicine and Biology. 42(7). pp. 1351-1373. IOP Publishing: 1997. Available from: http://iopscience.iop.org/0031-9155/42/7/009	en
heal.abstract	ZnSCdS:Ag was evaluated as a radiographic image receptor and was compared with and phosphors often used in radiography. The evaluation of a radiographic receptor was modelled as a three-step process: (i) determination of light output intensity as related to the input radiation dose, (ii) determination of visible light characteristics with respect to radiographic optical detectors, and (iii) determination of image information transfer efficiency. The light intensity emitted per unit of x-ray exposure rate was measured and theoretically calculated for laboratory prepared screens with coating thicknesses from 20 to and tube voltages from 50 to 250 kVp. ZnSCdS:Ag light intensity was higher than that of or for tube voltages less than 70 and 80 kVp respectively. ZnSCdS:Ag displayed the highest x-ray to light conversion efficiency (0.207) and had optical properties close to those of and , and its emission spectrum was well matched to optical detectors. The image information transfer properties described by the modulation transfer function, the quantum noise transfer function, and the detective quantum efficiency were calculated for both general radiographic and mammographic conditions and were found to be intermediate between those of and screens. Conclusively, ZnSCdS:Ag is an efficient phosphor well suited to radiography.	en
heal.publisher	IOP Publishing	en
heal.journalName	Physics in Medicine and Biology	en
heal.journalType	peer-reviewed
heal.fullTextAvailability	true