Evaluating the radiation detection of the RbGd2Br7:Ce scintillator by Monte Carlo methods

dc.contributor.author	Λιαπαρίνος, Παναγιώτης Φ.	el
dc.contributor.author	Κανδαράκης, Ιωάννης Σ.	el
dc.contributor.author	Κάβουρας, Διονύσης Α.	el
dc.contributor.author	Δέλης, Χαρίλαος	el
dc.contributor.author	Παναγιωτάκης, Γεώργιος Σ.	el
dc.date.accessioned	2015-06-07T17:23:18Z
dc.date.available	2015-06-07T17:23:18Z
dc.date.issued	2015-06-07
dc.identifier.uri	http://hdl.handle.net/11400/15503
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	www.sciencedirect.com/science/journal/01689002	en
dc.subject	Monte Carlo method
dc.subject	PET radiation detectors
dc.subject	Scintillators
dc.subject	Μέθοδος Μόντε Κάρλο
dc.subject	Ανιχνευτές ακτινοβολίας PET
dc.subject	Σπινθηριστές
dc.title	Evaluating the radiation detection of the RbGd2Br7:Ce scintillator by Monte Carlo methods	en
heal.type	journalArticle
heal.classification	Medicine
heal.classification	Technology
heal.classification	Ιατρική
heal.classification	Τεχνολογία
heal.classificationURI	http://id.loc.gov/authorities/subjects/sh00006614
heal.classificationURI	http://zbw.eu/stw/descriptor/10470-6
heal.classificationURI	N/A-Ιατρική
heal.classificationURI	N/A-Τεχνολογία
heal.keywordURI	http://id.loc.gov/authorities/subjects/sh85087032
heal.keywordURI	http://id.loc.gov/authorities/subjects/sh85118713
heal.identifier.secondary	DOI: 10.1016/j.nima.2006.08.037
heal.language	en
heal.access	campus
heal.recordProvider	Σχολή Τεχνολογικών Εφαρμογών. Τμήμα Μηχανικών Βιοϊατρικής Τεχνολογίας Τ.Ε.	el
heal.publicationDate	2006-12-20
heal.bibliographicCitation	Liaparinos, P., Kandarakis, I., Cavouras, D., Delis, H. and Panayiotakis, G. (2006) Evaluating the radiation detection of the RbGd2Br7:Ce scintillator by Monte Carlo methods. "Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment", 569 (2), p. 355-358. Available from: http://www.sciencedirect.com/science/article/pii/S0168900206014744 [Accessed: 07/06/2015].	en
heal.abstract	The purpose of this study was to investigate the radiation detection efficiency of the recently introduced RbGd2Br7:Ce (RGB) scintillator material by a custom developed Monte Carlo simulation code. Considering its fast principal decay constant (45 ns) and its high light yield (56 000 photons/MeV), RbGd2Br7:Ce appears to be a quite promising scintillator for applications in nuclear medical imaging systems. In this work, gamma-ray interactions, within the scintillator mass were studied. In addition, the effect of K-characteristic fluorescence radiation emission, re-absorption or escape, as well as the effect of scattering events on the spatial distribution of absorbed energy was examined. Various scintillator crystal thicknesses (5-25 mm), used in positron emission imaging, were considered to be irradiated by 511 keV photons. Similar simulations were performed on the well known Lu2SiO5:Ce (LSO) scintillator for comparison purposes. Simulation results allowed the determination of the quantum detection efficiency as well as the fraction of the energy absorbed due to the K-characteristic radiation. Results were obtained as a function of scintillator crystal thickness. The Lu2SiO5:Ce scintillator material showed to exhibit better radiation absorption properties in comparison with RbGd2Br7:Ce. However, RGB showed to be less affected by the production of K-characteristic radiation. Taking into account its very short decay time and its high light yield, this material could be considered to be employed in positron imaging (PET) detectors.	en
heal.publisher	Barletta, W.	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