Fully digital FPGA-based data acquisition system for dual head PET detectors

dc.contributor.author	Φυσικόπουλος, Ελευθέριος	el
dc.contributor.author	Γεωργίου, Μαρία	el
dc.contributor.author	Ευθυμίου, Νίκος	el
dc.contributor.author	Δαυίδ, Στράτος Λ.	el
dc.contributor.author	Λούντος, Γεώργιος	el
dc.date.accessioned	2015-06-09T21:01:15Z
dc.date.available	2015-06-09T21:01:15Z
dc.date.issued	2015-06-10
dc.identifier.uri	http://hdl.handle.net/11400/15620
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.scopus.com/record/display.url?origin=recordpage&eid=2-s2.0-84907967274&citeCnt=0&noHighlight=false&sort=plf-f&src=s&nlo=1&nlr=20&nls=&affilName=technological+educational+institute+of+athens&sid=AD00820B4B67BB0C9FBC05FFC31F57EA.CnvicAmOODVwpVrjSeqQ%3a70&sot=aff&sdt=cl&cluster=scopubyr%2c%222014%22%2ct&sl=61&s=%28AF-ID%28%22Technologiko+Ekpaideutiko+Idrima++Athinas%22+60002861%29%29&relpos=12	en
dc.subject	δεδομένα βαθμονόμησης
dc.subject	ψηφιακό σταθερό κλάσμα
dc.subject	Θέση ευαίσθητου φωτοπολλαπλασιαστή
dc.subject	Τομογραφία εκπομπής ποζιτρονίων
dc.subject	Data Acquisition
dc.subject	digital Constant Fraction Discriminator
dc.subject	Position Sensitive Photomultiplier Tube
dc.subject	positron-emission tomography
dc.title	Fully digital FPGA-based data acquisition system for dual head PET detectors	en
heal.type	journalArticle
heal.classification	Τεχνολογία
heal.classification	Τομογραφία
heal.classification	Technology
heal.classification	Tomography
heal.classificationURI	N/A-Τεχνολογία
heal.classificationURI	N/A-Τομογραφία
heal.classificationURI	http://id.loc.gov/authorities/subjects/sh85133147
heal.classificationURI	http://id.loc.gov/authorities/subjects/sh00006372
heal.keywordURI	http://lod.nal.usda.gov/146566
heal.contributorName	Ματσόπουλος, Γεώργιος Κ.	el
heal.identifier.secondary	DOI: 10.1109/TNS.2014.2354984
heal.language	en
heal.access	campus
heal.recordProvider	Τεχνολογικό Εκπαιδευτικό Ίδρυμα Αθήνας. Σχολή Τεχνολογικών Εφαρμογών. Τμήμα Μηχανικών Βιοϊατρικής Τεχνολογίας Τ.Ε.	el
heal.publicationDate	2014-10-01
heal.bibliographicCitation	Fysikopoulos, E., Georgiou, M., Efthimiou, N., David, S. and Loudos, G. et al. (2014) Fully digital FPGA-based data acquisition system for dual head PET detectors. IEEE Transactions on Nuclear Science. [Online] 61 (5), 2354984. pp.2764-2770. Available from: http://www.scopus.com [Accessed 09/06/2015]	en
heal.abstract	We present the development of a new fully digital, flexible, cost-efficient data acquisition system (DAQ) suitable for dual head Positron Emission Tomography (PET) scanners for small animal imaging applications. A free-running 12 bit octal channel Analog to Digital Converter (ADC), with 65 MHz sampling rate, was used for the digitization of the detector signals. The digitized data were fed into a Spartan 6 Field Programmable Gate Array (FPGA) for event processing. An embedded system was developed for the acquisition, using Xilinx's Embedded Development Kit (EDK) and Microblaze processor. A digital version of the Constant Fraction Discriminator (CFD) method was implemented in the FPGA, in order to achieve higher time resolution than the ADC sampling period, eliminating the need of an external mixed-signal device. The obtained information using FPGA includes: event timing, energy determination-discrimination, position determination and coincidence processing. The online processing of potential coincident events, significantly reduces the amount of data that will be transmitted to the computer. Coincident events are written temporarily to an external memory provided on a development board and are transferred to a Personal Computer (PC), via Ethernet link, for image reconstruction. Minimal post processing of the data is required prior to reconstruction. A small detector pair consisting of a BGO array coupled to a Position Sensitive Photomultiplier Tube (PSPMT) was used for the evaluation of the readout system.Obtained results prove that the proposed architecture can be used for the readout of dual head PET detectors for small animal imaging applications.	en
heal.publisher	Institute of Electrical and Electronics Engineers Inc.	en
heal.journalName	IEEE Transactions on Nuclear Science	en
heal.journalType	peer-reviewed
heal.fullTextAvailability	false