Investigation of the effect of the scintillator material on the overall X-ray detection system performance by application of analytical models

Efthimiou, N; Kalivas, N; Patatoukas, G; Konstantinidis, A; Valais, I; Nikolopoulos, D; Gaitanis, A; David, S; Michail, C; Loudos, G; Cavouras, D; Panayiotakis, G; Kandarakis, I

dc.contributor.author	Efthimiou, N	en
dc.contributor.author	Kalivas, N	en
dc.contributor.author	Patatoukas, G	en
dc.contributor.author	Konstantinidis, A	en
dc.contributor.author	Valais, I	en
dc.contributor.author	Nikolopoulos, D	en
dc.contributor.author	Gaitanis, A	en
dc.contributor.author	David, S	en
dc.contributor.author	Michail, C	en
dc.contributor.author	Loudos, G	en
dc.contributor.author	Cavouras, D	en
dc.contributor.author	Panayiotakis, G	en
dc.contributor.author	Kandarakis, I	en
dc.date.accessioned	2014-03-01T01:26:31Z
dc.date.available	2014-03-01T01:26:31Z
dc.date.issued	2007	en
dc.identifier.issn	0168-9002	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/18112
dc.subject	Image quality	en
dc.subject	Simulation	en
dc.subject	X-ray spectra	en
dc.subject.classification	Instruments & Instrumentation	en
dc.subject.classification	Nuclear Science & Technology	en
dc.subject.classification	Physics, Particles & Fields	en
dc.subject.classification	Spectroscopy	en
dc.subject.other	Computer simulation	en
dc.subject.other	Demodulation	en
dc.subject.other	Energy absorption	en
dc.subject.other	Energy efficiency	en
dc.subject.other	Quantum efficiency	en
dc.subject.other	Signal processing	en
dc.subject.other	X ray spectroscopy	en
dc.subject.other	Energy Absorption Efficiency (EAE)	en
dc.subject.other	Modulation Transfer Function (MTF)	en
dc.subject.other	Scintillator materials	en
dc.subject.other	X ray detection systems	en
dc.subject.other	Phosphors	en
dc.title	Investigation of the effect of the scintillator material on the overall X-ray detection system performance by application of analytical models	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.nima.2006.10.080	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.nima.2006.10.080	en
heal.language	English	en
heal.publicationDate	2007	en
heal.abstract	The purpose of the present work was to model a modern X-ray detection system and to investigate the effect of the scintillator material on the detector's output signal. The scintillators were used in the form of screens. The parameters investigated were the Modulation Transfer Function (MTF), the Detective Quantum Efficiency (DQE) and the Energy Absorption Efficiency (EAE). The results for some well-known scintillators (Y3Al5O12:Ce, Y2O3:Eu, ZnSCdS:Ag, Lu3Al5O7, CdWO4) are presented. Typical radiographic conditions were considered as input parameters. For simulation purposes, the intrinsic conversion efficiency (eta(c)), the total number of optical photons produced per incident X-ray (m(0)), the attenuation coefficients and other optical parameters of the scintillator materials, were taken as input data. The complete simulation procedure was performed in a specially designed Graphical User Interface (GUI). The results showed that the Y2O3:Eu scintillator presented similar behavior to that of ZnSCdS:Ag, exhibiting higher DQE at zero spatial frequencies. For higher frequencies, however, the DQE values of Lu3Al5O7 and CdWO4 prevailed. (c) 2006 Elsevier B.V. All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment	en
dc.identifier.doi	10.1016/j.nima.2006.10.080	en
dc.identifier.isi	ISI:000244599100065	en
dc.identifier.volume	571	en
dc.identifier.issue	1-2 SPEC. ISS.	en
dc.identifier.spage	270	en
dc.identifier.epage	273	en