Zobrazeno 1 - 10
of 22
pro vyhledávání: '"George E. Karpetas"'
Autor:
George Saatsakis, Nektarios Kalyvas, Christos Michail, Konstantinos Ninos, Athanasios Bakas, Christina Fountzoula, Ioannis Sianoudis, George E. Karpetas, George Fountos, Ioannis Kandarakis, Ioannis Valais, George Panayiotakis
Publikováno v:
Crystals, Vol 9, Iss 7, p 343 (2019)
The aim of this article is to evaluate optical characteristics, such as the intrinsic conversion efficiency and the inherent light propagation efficiency of three polymethyl methacrylate (PMMA)/methyl methacrylate (MMA) composite ZnCuInS/ZnS (core/sh
Externí odkaz:
https://doaj.org/article/a2ef113564094f1a9a7064fc2798f849
Autor:
Nektarios Kalyvas, George Saatsakis, Christos Michail, I. Valais, Ioannis Kandarakis, Eleftherios Lavdas, Dionysios Linardatos, Konstantinos Ninos, George E. Karpetas, Athanasios Bakas, George Fountos
Publikováno v:
Procedia Structural Integrity. 33:287-294
It is well known that the luminescence efficiency of single crystals is affected by external parameters, such as the environmental temperature, especially in harsh environments. Due to this, it is of worth to examine the influence of temperature on t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d34bc984a36064e444c8ab684b8b4d03
https://doi.org/10.1016/j.prostr.2021.10.035
https://doi.org/10.1016/j.prostr.2021.10.035
Autor:
George Panayiotakis, Kyriakos Agavanakis, George Fountos, I. Valais, Christos Michail, George E. Karpetas, Ioannis Kandarakis, Nektarios Kalyvas
Publikováno v:
Energy Procedia. 157:1517-1524
The aim of the present study was to investigate the information content of positron emission tomography (PET) images. We used the GATE Monte Carlo package (GEANT4 application for tomographic emission) and reconstructed images, obtained using the soft
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f5110d429a6d19b00a733eacb1620449
https://doi.org/10.1016/j.egypro.2018.11.317
https://doi.org/10.1016/j.egypro.2018.11.317
Autor:
Nektarios Kalyvas, George E. Karpetas, George Fountos, George Panayiotakis, Ioannis Valais, Ioannis Kandarakis, Christos Michail
Publikováno v:
Applied Radiation and Isotopes. 125:154-162
The aim of the present study is to introduce the detective quantum efficiency (DQE) for the image quality assessment of positron emission tomography (PET) scanners. For this purpose, a thin layer chromatography (TLC) plane source was simulated using
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4a216de87f8c08cbbed3b229568441b0
https://doi.org/10.1016/j.apradiso.2017.04.018
https://doi.org/10.1016/j.apradiso.2017.04.018
Autor:
Ioannis Sianoudis, George E. Karpetas, Konstantinos Ninos, Ioannis Kandarakis, Athanasios Bakas, Ioannis Valais, George Panayiotakis, C. Fountzoula, George Fountos, Christos Michail, George Saatsakis, Nektarios Kalyvas
Publikováno v:
Crystals
Volume 9
Issue 7
Crystals, Vol 9, Iss 7, p 343 (2019)
Volume 9
Issue 7
Crystals, Vol 9, Iss 7, p 343 (2019)
The aim of this article is to evaluate optical characteristics, such as the intrinsic conversion efficiency and the inherent light propagation efficiency of three polymethyl methacrylate (PMMA)/methyl methacrylate (MMA) composite ZnCuInS/ZnS (core/sh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4a7941fcdd77123ddb3fb3e1a86915e4
Autor:
Varvara Trachana, Evangelia Pappa, John Filos, Kyriakos Agavanakis, George E. Karpetas, Lamprini Kontopoulou, Christos Michail, Michael Taylor
Publikováno v:
AIP Conference Proceedings.
Machine learning is a domain highly influenced by the rapid evolution of cloud computing and has reached a maturity point where a plethora of data processing capabilities is now widely available. The aim of the present study is to investigate the pot
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::36725e76241558bb5f42bfee8c0886b8
https://doi.org/10.1063/1.5117023
https://doi.org/10.1063/1.5117023
Autor:
George E. Karpetas, Nektarios Kalyvas, Ioannis Kandarakis, George Panayiotakis, Kyriakos Agavanakis, Christos Michail, George Fountos, Ioannis Valais
Publikováno v:
Crystals, Vol 8, Iss 12, p 459 (2018)
Crystals
Volume 8
Issue 12
Crystals
Volume 8
Issue 12
Background: The aim of the present study was to assess the upper information content bound of positron emission tomography (PET) images, by means of the information capacity (IC). Methods: The Geant4 Application for the Tomographic Emission (GATE) Mo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::16405338332ab75dc9e823c9e1bb89cb
https://www.mdpi.com/2073-4352/8/12/459
https://www.mdpi.com/2073-4352/8/12/459
Autor:
Christos M, Michail, George E, Karpetas, George P, Fountos, Nektarios I, Kalyvas, Ioannis G, Valais, Christina, Fountzoula, Antonis, Zanglis, Ioannis S, Kandarakis, George S, Panayiotakis
Publikováno v:
Hellenic journal of nuclear medicine. 19(3)
The aim of the present study was to propose a comprehensive method for positron emission tomography (PET) scanners image quality assessment, by simulation of a thin layer chromatography (TLC) flood source with a previously validated Monte Carlo model
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::457d1972a0aa3e9fbad0ec026b89bb00
https://pubmed.ncbi.nlm.nih.gov/27824962
https://pubmed.ncbi.nlm.nih.gov/27824962
Autor:
Christos Michail, Ioannis Kandarakis, George Fountos, George E. Karpetas, George Panayiotakis
Publikováno v:
Nuclear medicine communications. 35(9)
OBJECTIVE The aim of this study was to propose a novel method for image quality assessment in PET scanners through estimation of the modulation transfer function (MTF) of a plane source. The simulation was implemented using the previously validated M
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::168fcdf7e9b1ea3fd9fadc491e4cfeca
https://pubmed.ncbi.nlm.nih.gov/24949916
https://pubmed.ncbi.nlm.nih.gov/24949916
Autor:
George E. Karpetas
Σκοπός: Ο γενικός σκοπός της παρούσας μελέτης ήταν να προτείνει μια νέα μέθοδο για την πλήρη περιγραφή των χαρακτηριστικών ποιότητας ει
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::02f7e5f25e3686b83cff8b752ac86f37
https://doi.org/10.12681/eadd/29322
https://doi.org/10.12681/eadd/29322
