G
George Fountos
Researcher at University of the West
Publications - 141
Citations - 1400
George Fountos is an academic researcher from University of the West. The author has contributed to research in topics: Scintillator & Luminescence. The author has an hindex of 20, co-authored 122 publications receiving 1202 citations. Previous affiliations of George Fountos include Technological Educational Institute of Athens & American Hotel & Lodging Educational Institute.
Papers
More filters
Book ChapterDOI
Dual Energy Subtraction Angiography: A Simulation Study Using the Three Material Approach
A. Toutountzis,George Fountos,Christos Michail,Alexandros Samartzis,Ioannis Kandarakis,G.C. Nikiforidis +5 more
TL;DR: The three-material approach for dual energy image reconstruction seems to be a more effective algorithm, when using the weighting subtraction, than the twomaterial technique.
Book ChapterDOI
Efficiency of Luminescence of (Lu,Gd)2SiO5:Ce (LGSO:Ce) Crystal Sensory Material in the X-Ray Imaging Range
Christos Michail,Ioannis Valais,S. David,Athanasios Bakas,N. Kalivas,George Fountos,Ioannis Kandarakis,Panayotis H Yannakopoulos,Dimitrios Nikolopoulos +8 more
TL;DR: In this article, the absolute luminescence efficiency (AE) of mixed oxyorthosilicate (Lu,Gd)2SiO5:Ce (LGSO,Ce) single crystals, under X-ray irradiation, was investigated.
Proceedings ArticleDOI
A comparative investigation of Ce 3+ doped single crystal scintillators covering radiotherapy and PET/CT imaging conditions
Ioannis Valais,Christos Michail,S. David,A. Toutountzis,George Fountos,Theodoros V. Paschalis,Ioannis Kandarakis,George Panayiotakis +7 more
TL;DR: The results of this study will be useful in applications where both CT and PET photons as well as megavoltage cone beam CT (MV CBCT) photons could be detected using a common detector unit.
Journal ArticleDOI
Influence of Iterative Reconstruction Algorithms on PET Image Resolution
George E. Karpetas,Christos Michail,George Fountos,Ioannis Valais,Dimitrios Nikolopoulos,Ioannis Kandarakis,G.S. Panayiotakis +6 more
TL;DR: The simulated PET evaluation method, based on the TLC plane source, can be useful in the resolution assessment of PET scanners and improves by using lower beta values.
Proceedings ArticleDOI
Modeling noise properties of a high resolution CMOS detector for X-ray digital mammography
Nektarios Kalyvas,Christos Michail,George Fountos,Ioannis Valais,P. Liaparinos,I. E. Seferis,V Spyropoulou,Alexandros K. Mytafidis,G.S. Panayiotakis,Ioannis Kandarakis +9 more
TL;DR: In this article, a theoretical model based on Linear Cascaded Systems (LCS) theory was developed in order to study the noise properties of a commercially available high resolution CMOS sensor (RadEye CMOS) The parameters studied were the Normalized Noise Power Spectrum (NNPS) and the Noise Transfer Function (NTF) The modeling was applied to digital mammography conditions.