Investigation of two heavy element scintillators by
Monte-Carlo methods

dc.contributor.author	Κωνσταντινίδης, Αναστάσιος Χ.	el
dc.contributor.author	Λιαπαρίνος, Παναγιώτης Φ.	el
dc.contributor.author	Καλύβας, Νεκτάριος Ι.	el
dc.contributor.author	Παναγιωτάκης, Γεώργιος Σ.	el
dc.contributor.author	Κανδαράκης, Ιωάννης Σ.	el
dc.date.accessioned	2015-01-19T09:49:09Z
dc.date.available	2015-01-19T09:49:09Z
dc.date.issued	2015-01-19
dc.identifier.uri	http://hdl.handle.net/11400/4232
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/	en
dc.subject	X-ray detectors
dc.subject	Detector modelling and simulations
dc.subject	Ανιχνευτές ακτίνων-Χ
dc.subject	Μοντελοποίηση και προσομοίωση ανιχνευτή
dc.title	Investigation of two heavy element scintillators by Monte-Carlo methods	en
heal.type	journalArticle
heal.generalDescription	Part of 4th International Conference on Imaging Technologies in Biomedical Sciences	en
heal.classification	Medicine
heal.classification	Physics
heal.classification	Ιατρική
heal.classification	Φυσική
heal.classificationURI	http://id.loc.gov/authorities/subjects/sh00006614
heal.classificationURI	http://skos.um.es/unescothes/C02994
heal.classificationURI	N/A-Ιατρική
heal.classificationURI	N/A-Φυσική
heal.identifier.secondary	doi:10.1088/1748-0221/4/05/P05019
heal.language	en
heal.access	free
heal.recordProvider	Τ.Ε.Ι. Αθήνας. Σχολή Τεχνολογικών Εφαρμογών. Τμήμα Μηχανικών Βιοϊατρικής Τεχνολογίας Τ.Ε.	el
heal.publicationDate	2009
heal.bibliographicCitation	Konstantinidis, A., Liaparinos, P., Kalivas, N., Panayiotakis, G. and Kandarakis, I. (May 2009). Investigation of two heavy element scintillators by Monte-Carlo methods. Journal of Instrumentation. 4(5). pp. 1-5. IOP Publishing Ltd. Available from: http://iopscience.iop.org	en
heal.abstract	The aim of this study was to estimate the influence of K-characteristic radiation on the performance of x-ray scintillating screens containing two heavy elements by Monte Carlo methods. K-characteristic radiation is produced within materials of at least one heavy (high atomic number) element. This radiation may result either in spatial resolution degradation or in emission efficiency decrease. The scintillators studied were the following: LYSO (Lu1.8Y0.2SiO5 and LuYSiO5), CsI and YTaO4. All the aforementioned scintillators have two heavy elements, thus the K-characteristic radiation of the high-Z element can produce additional K-characteristic photons on the low-Z element, resulting in further degradation. Scintillator performance was described in terms of the: (a) Probability of generation and reabsorption of a K-characteristic photon (PKR) and (b) Spatial distribution of K-characteristic radiation within the scintillator material. A custom validated Monte Carlo model was used, in order to simulate the transport of K-characteristic radiation within the above scintillator materials. Results showed that, depending on screen thickness (20–100 mg/cm2) and incident photon energy (20–80 keV) the scintillator's emission efficiency may be significantly reduced.	en
heal.publisher	IOP Publishing Ltd	en
heal.journalName	Journal of Instrumentation	en
heal.journalType	peer-reviewed
heal.fullTextAvailability	true