First performance tests of a digital photon counter (DPC) array coupled to a CsI(Tl) crystal matrix for potential use in SPECT

dc.contributor.author	Γεωργίου, Μαρία	el
dc.contributor.author	Borghi, Giacomo	en
dc.contributor.author	Σπύρου, Σπυρίδων Β.	el
dc.contributor.author	Λούντος, Γεώργιος	el
dc.contributor.author	Schaart, Dennis R.	en
dc.date.accessioned	2015-06-10T14:20:38Z
dc.date.available	2015-06-10T14:20:38Z
dc.date.issued	2015-06-10
dc.identifier.uri	http://hdl.handle.net/11400/15640
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/0031-9155/59/10/2415/	en
dc.subject	Αλγόριθμοι
dc.subject	Ιωδιούχο καίσιο
dc.subject	Ανιχνευτές
dc.subject	Φωτοπολλαπλασιαστές
dc.subject	φωτόνια
dc.subject	Algorithms
dc.subject	Cesium iodide
dc.subject	Detectors
dc.subject	Photomultipliers
dc.subject	Photons
dc.title	First performance tests of a digital photon counter (DPC) array coupled to a CsI(Tl) crystal matrix for potential use in SPECT	en
heal.type	journalArticle
heal.classification	Τεχνολογία
heal.classification	Ιατρική
heal.classification	Technology
heal.classification	Medicine
heal.classificationURI	N/A-Τεχνολογία
heal.classificationURI	N/A-Ιατρική
heal.classificationURI	http://id.loc.gov/authorities/subjects/sh85133147
heal.classificationURI	http://id.loc.gov/authorities/subjects/sh00006614
heal.keywordURI	http://id.loc.gov/authorities/subjects/sh88002052
heal.keywordURI	http://id.loc.gov/authorities/subjects/sh85101398
heal.identifier.secondary	DOI: 10.1088/0031-9155/59/10/2415
heal.language	en
heal.access	campus
heal.recordProvider	Τεχνολογικό Εκπαιδευτικό Ίδρυμα Αθήνας. Σχολή Τεχνολογικών Εφαρμογών. Τμήμα Μηχανικών Βιοϊατρικής Τεχνολογίας Τ.Ε.	el
heal.publicationDate	2014-05-21
heal.bibliographicCitation	Georgiou, M., Borghi, G., Spirou, S.V., Loudos, G. and Schaart, D.R. (2014) First performance tests of a digital photon counter (DPC) array coupled to a CsI(Tl) crystal matrix for potential use in SPECT. Physics in Medicine and Biology. [Online] 59 (10), pp.2415-2430. Available from: http://iopscience.iop.org [Accessed 10/06/2015]	en
heal.abstract	The digital photon counter (DPC) is a recently developed type of digital silicon photomultiplier that combines low dark count rates, low readout noise, and fully digital, integrated readout circuitry with neighbor logic capability, system scalability, and MR compatibility. These are desirable properties for application in scintillation detectors for single photon emission computed tomography (SPECT). In this work, the feasibility of using a DPC array in combination with a CsI(Tl) crystal matrix as a potential detector for SPECT is investigated for the first time. Given the relatively long decay time of CsI(Tl), an important consideration is the influence on the detector performance of the DPC dark count rate as a function of temperature. We present a preliminary characterization of a detector assembled with an array of 2×2×3mm3CsI(Tl) crystals. Preparatory measurements were acquired with a 57Co source in order to optimize the light-guide thickness and the sensor settings. The spatial resolution of the detector was tested by acquiring flood maps with 57Co as well as 99mTc sources. Three crystal identification algorithms were compared for the reconstruction of the flood maps. All crystal elements could be visualized clearly and high values of peak-to-valley ratios were achieved. Energy resolutions of ∼18.5% FWHM and ∼15% FWHM were measured at 122keV and 140keV, respectively. Temperature-dependent measurements indicate that the detector can work satisfactorily up to about 15°C.	en
heal.publisher	Institute of Physics Publishing	en
heal.journalName	Physics in Medicine and Biology	en
heal.journalType	peer-reviewed
heal.fullTextAvailability	true