Comparative study using Monte Carlo methods of the radiation detection efficiency of LSO, LuAP, GSO and YAP scintillators for use in positron emission imaging (PET)

dc.contributor.author	Νικολόπουλος, Δημήτριος Σ.	el
dc.contributor.author	Κανδαράκης, Ιωάννης Σ.	el
dc.contributor.author	Τσαντίλας, Ξενοφών	el
dc.contributor.author	Βαλαής, Ιωάννης Γ.	el
dc.contributor.author	Κάβουρας, Διονύσης Α.	el
dc.date.accessioned	2015-01-22T12:14:26Z
dc.date.available	2015-01-22T12:14:26Z
dc.date.issued	2015-01-22
dc.identifier.uri	http://hdl.handle.net/11400/4538
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	Scintillators
dc.subject	Nuclear counters
dc.subject	Σπινθηριστές
dc.subject	Ανιχνευτές ακτινοβολίας
dc.title	Comparative study using Monte Carlo methods of the radiation detection efficiency of LSO, LuAP, GSO and YAP scintillators for use in positron emission imaging (PET)	en
heal.type	journalArticle
heal.generalDescription	Proceedings of the 3rd International Conference on Imaging Technologies in Biomedical Sciences -Innovation in Nuclear and Radiological Imaging: from Basic Research to Clinical Application	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.keywordURI	http://id.loc.gov/authorities/subjects/sh85118713
heal.keywordURI	http://id.loc.gov/authorities/subjects/sh85092953
heal.contributorName	Λουίτζη, Άννα	el
heal.identifier.secondary	doi:10.1016/j.nima.2006.08.033
heal.language	en
heal.access	free
heal.recordProvider	Τ.Ε.Ι. Αθήνας. Σχολή Τεχνολογικών Εφαρμογών. Τμήμα Μηχανικών Βιοϊατρικής Τεχνολογίας Τ.Ε.	el
heal.publicationDate	2006
heal.bibliographicCitation	Nikolopoulos, D., Kandarakis, I., Tsantilas, X., Valais, I., Cavouras, D., et al. ( December 2006). Comparative study using Monte Carlo methods of the radiation detection efficiency of LSO, LuAP, GSO and YAP scintillators for use in positron emission imaging (PET). Nuclear Instruments and Methods in Physics Research A. 569(2). pp. 350–354. Elsevier Science Ltd. Available from: http://www.sciencedirect.com [Accessed 08/09/2006]	en
heal.abstract	The radiation detection efficiency of four scintillators employed, or designed to be employed, in positron emission imaging (PET) was evaluated as a function of the crystal thickness by applying Monte Carlo Methods. The scintillators studied were the LuSiO5 (LSO), LuAlO3 (LuAP), Gd2SiO5 (GSO) and the YAlO3 (YAP). Crystal thicknesses ranged from 0 to 50 mm. The study was performed via a previously generated photon transport Monte Carlo code. All photon track and energy histories were recorded and the energy transferred or absorbed in the scintillator medium was calculated together with the energy redistributed and retransported as secondary characteristic fluorescence radiation. Various parameters were calculated e.g. the fraction of the incident photon energy absorbed, transmitted or redistributed as fluorescence radiation, the scatter to primary ratio, the photon and energy distribution within each scintillator block etc. As being most significant, the fraction of the incident photon energy absorbed was found to increase with increasing crystal thickness tending to form a plateau above the 30 mm thickness. For LSO, LuAP, GSO and YAP scintillators, respectively, this fraction had the value of 44.8, 36.9 and 45.7% at the 10 mm thickness and 96.4, 93.2 and 96.9% at the 50 mm thickness. Within the plateau area approximately (57–59)%, (59–63)%, (52–63)% and (58–61)% of this fraction was due to scattered and reabsorbed radiation for the LSO, GSO, YAP and LuAP scintillators, respectively. In all cases, a negligible fraction (<0.1%) of the absorbed energy was found to escape the crystal as fluorescence radiation.	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