A systematic study of the performance of the CsI:Tl single-crystal scintillator under X-ray excitation

dc.contributor.author	Βαλαής, Ιωάννης Γ.	el
dc.contributor.author	Νικολόπουλος, Δημήτριος Σ.	el
dc.contributor.author	Καλύβας, Νεκτάριος Ι.	el
dc.contributor.author	Γαϊτάνης, Αναστάσιος	el
dc.contributor.author	Λούντος, Γεώργιος	el
dc.date.accessioned	2015-01-16T13:23:39Z
dc.date.available	2015-01-16T13:23:39Z
dc.date.issued	2015-01-16
dc.identifier.uri	http://hdl.handle.net/11400/4134
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.journals.elsevier.com/	en
dc.subject	Inorganic scintillators
dc.subject	Nuclear counters
dc.subject	Ανόργανοι σπινθηριστές
dc.subject	Ανιχνευτές ακτινοβολίας
dc.title	A systematic study of the performance of the CsI:Tl single-crystal scintillator under X-ray excitation	en
heal.type	journalArticle
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/sh96012193
heal.keywordURI	http://id.loc.gov/authorities/subjects/sh85092953
heal.contributorName	Σιανούδης, Ιωάννης Α.	el
heal.contributorName	Γιόκαρης, Νικόλαος	el
heal.contributorName	Κάβουρας, Διονύσης Α.	el
heal.contributorName	Δημητρόπουλος, Νικόλαος	el
heal.contributorName	Νομικός, Κωνσταντίνος Δ.	el
heal.contributorName	Κανδαράκης, Ιωάννης Σ.	el
heal.contributorName	Παναγιωτάκης, Γεώργιος Σ.	el
heal.identifier.secondary	doi:10.1016/j.nima.2006.10.096
heal.language	en
heal.access	free
heal.recordProvider	Τ.Ε.Ι. Αθήνας. Σχολή Τεχνολογικών Εφαρμογών. Τμήμα Μηχανικών Βιοϊατρικής Τεχνολογίας Τ.Ε.	el
heal.publicationDate	2007
heal.bibliographicCitation	Valais, I., Nikolopoulos, D., Kalivas, N., Gaitanis, A., Loudos, G., et al. (February 2007). A systematic study of the performance of the CsI:Tl single-crystal scintillator under X-ray excitation. nuclear instruments and methods in physics research A. 571(1-2). pp. 343–345. Elsevier Science Ltd. Available from: http://www.sciencedirect.com [Accessed 07/11/2006]	en
heal.abstract	The light emission performance of the X-ray excited CsI:Tl single-crystal scintillator was investigated as a function of X-ray tube voltage and crystal thickness. Four CsI:Tl single-crystal layers (CRYOS Ltd., Ukraine) with thickness from 1 to 7 mm were irradiated employing two X-ray tube voltage ranges: (i) the 22–45 kV (molybdenum anode–molybdenum filter (Mo/Mo)) range, employed in mammographic imaging and (ii) the 40–140 kV (tungsten anode–aluminum filter) tube voltage range, used in general X-ray projection and tomographic imaging. The X-ray luminescence efficiency (light emission spectrum over incident X-ray fluence) of the crystals was determined by performing light emission spectrum and X-ray exposure measurements. In addition, the intrinsic conversion efficiency (fraction of the absorbed X-ray converted into light) and the spectral compatibility to various optical detectors were estimated from these measurements. The luminescence efficiency was found to be a nonlinear function of crystal thickness and of X-ray tube voltage. Peak efficiency (29.5 μWm−2/mRs) was observed for the 5 mm thick crystal at 140 kV. A secondary efficiency peak was observed at 42 kV (Mo anode) probably due to the effect of the K-photoelectric absorption edge (at 33 and 35 keV for Cs and I, respectively). For the thicker (7 mm) crystal, the efficiency was found to decrease due to light attenuation effects within the scintillator mass.	en
heal.publisher	Elsevier Science Ltd	en
heal.journalName	Nuclear Instruments and Methods in Physics Research A	en
heal.journalType	peer-reviewed
heal.fullTextAvailability	true