Search Results - "Liaparinos, P."

Influence of Surface Roughness on the Light Transmission Through the Boundaries of Luminescent Materials in Radiation Detectors by Liaparinos, P.

“…The optical transfer properties of an imaging system are affected by the performance of the discrete cascaded system stages that transfer efficiently the…”
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Optical absorption characteristics in the assessment of powder phosphor-based x-ray detectors: from nano- to micro-scale by Liaparinos, P F

“…X-ray phosphor-based detectors have enormously improved the quality of medical imaging examinations through the optimization of optical diffusion. In recent…”
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Anisotropic optical distribution of powder phosphor materials applied in medical imaging instrumentation by Liaparinos, P. F.

“…Image quality for medical purposes is related to the useful diagnostic information that can be extracted from an image. The performance of indirect X-ray…”
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Light wavelength effects in submicrometer phosphor materials using Mie scattering and Monte Carlo simulation by Liaparinos, P. F.

“…Purpose: Phosphor materials provide challenges to both fundamental research and breakthrough development of technologies in research areas. In recent years,…”
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Optical emission characteristics of Gd2O2S:Tb powder phosphor under X-ray excitation: the influence of different grain size distributions (GSDs) by Liaparinos, P., Michail, C., Valais, I., Karabotsos, A., Kandarakis, I.

“…Powder phosphor materials consist of a variety of grain sizes glued together in a binder material forming a specific grain size distribution (GSD). Within…”
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Strain effects on the optical parameters of quantum dots nanocrystals employed in biomedical applications by Liaparinos, P.F.

“…The purpose of this study was to perform the influence of the strain (lattice and radius) effects on the optical parameters of nanocrystals for use in medical…”
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The Surface-Roughness Effects on Light Beam Interactions between the CsI Phosphor and Optical Sensing Materials by Liaparinos, Panagiotis, David, Stratos

“…In digital phosphor-based imaging modalities, one important intermediate stage is the optical coupling between the phosphor material and the optical sensor…”
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On the response of GdAlO3:Ce powder scintillators by Michail, C., Kalyvas, N., Valais, I., David, S., Seferis, I., Toutountzis, A., Karabotsos, A., Liaparinos, P., Fountos, G., Kandarakis, I.

“…The aim of the present study was to investigate the luminescence efficiency (XLE) of gadolinium aluminum perovskite (GdAlO3:Ce) powder scintillator. This…”
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Evaluation of Gd2O2S:Pr granular phosphor properties for X-ray mammography imaging by David, S., Michail, C., Seferis, I., Valais, I., Fountos, G., Liaparinos, P., Kandarakis, I., Kalyvas, N.

“…Phosphor materials are widely used in X-ray medical imaging detector applications, coupled with suitable photoreceptors. Upon the most demanding imaging…”
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Light emission efficiency and imaging performance of Lu2O3:Eu nanophosphor under X-ray radiography conditions: Comparison with Gd2O2S:Eu by Seferis, I., Michail, C., Valais, I., Zeler, J., Liaparinos, P., Fountos, G., Kalyvas, N., David, S., Stromatia, F., Zych, E., Kandarakis, I., Panayiotakis, G.

“…Nanocrystallic europium-activated lutetium oxide (Lu2O3:Eu) is a strong candidate for use in digital medical imaging applications, due to its spectroscopic and…”
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Studying the luminescence efficiency of Lu2O3:Eu nanophosphor material for digital X-ray imaging applications by Kalyvas, N., Liaparinos, P., Michail, C., David, S., Fountos, G., Wójtowicz, M., Zych, E., Kandarakis, I.

“…Scintillator materials are widely used in X-ray medical imaging detector applications, coupled with available photoreceptors like radiographic film or…”
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Light emission efficiency and imaging performance of Gd2O2S:Eu powder scintillator under x‐ray radiography conditions by Michail, C. M., Fountos, G. P., Liaparinos, P. F., Kalyvas, N. E., Valais, I., Kandarakis, I. S., Panayiotakis, G. S.

“…Purpose To evaluate Gd2O2S:Eu powder phosphor as a radiographic image receptor and to compare it to phosphors often used in radiography. Gd2O2S:Eu is…”
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The imaging performance of compact Lu2O3:Eu powdered phosphor screens: Monte Carlo simulation for applications in mammography by Liaparinos, P. F., Kandarakis, I. S.

“…In medical mammographic imaging systems, one type of detector configuration, often referred to as indirect detectors, is based on a scintillator layer…”
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Overestimations in zero frequency DQE of x-ray imaging converters assessed by Monte Carlo techniques based on the study of energy impartation events by Liaparinos, P. F., Kandarakis, I. S.

“…Purpose: The performance of various x-ray converters, employed in medical imaging systems, has been widely examined by several methodologies (experimental,…”
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The Monte Carlo evaluation of noise and resolution properties of granular phosphor screens by Liaparinos, P F, Kandarakis, I S

“…The imaging performance of phosphor screens, used as x-ray detectors in diagnostic medical imaging systems, is affected by their both noise and resolution…”
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Experimental validation of a radiographic simulation code using breast phantom for X-ray imaging by Bliznakova, K, Speller, R, Horrocks, J, Liaparinos, P, Kolitsi, Z, Pallikarakis, N

“…Abstract Computer models and simulations of X-ray imaging systems are becoming a very precious tool during the development and evaluation of new X-ray imaging…”
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Monte Carlo performance on the x-ray converter thickness in digital mammography using software breast models by Liaparinos, P., Bliznakova, K.

“…Purpose: In x-ray mammography, some of the components that play significant role to early diagnosis are the x-ray source, the breast composition as well as the…”
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Evaluation of the Luminescence Efficiency of YAG:Ce Powder Scintillating Screens for Use in Digital Mammography Detectors by David, S L, Michail, C M, Roussou, M, Nirgianaki, E, Toutountzis, A E, Valais, I G, Fountos, G, Liaparinos, P F, Kandarakis, I, Panayiotakis, G

“…In the present study scintillating screens prepared from Y 3 Al 5 O 12 :Ce (YAG:Ce) powder phosphor were evaluated for use in digital mammography. YAG:Ce has…”
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Validation of a GATE model for the simulation of the Siemens biograph™ 6 PET scanner by Gonias, P., Bertsekas, N., Karakatsanis, N., Saatsakis, G., Gaitanis, A., Nikolopoulos, D., Loudos, G., Papaspyrou, L., Sakellios, N., Tsantilas, X., Daskalakis, A., Liaparinos, P., Nikita, K., Louizi, A., Cavouras, D., Kandarakis, I., Panayiotakis, G.S.

“…The recently developed Geant4 Application for Tomographic Emission (GATE) toolkit is a Monte Carlo simulation platform developed for PET and SPECT simulations…”
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Comparative study of luminescence properties of LuYAP:Ce and LYSO:Ce single-crystal scintillators for use in medical imaging by Valais, I., David, S., Michail, C., Nikolopoulos, D., Liaparinos, P., Cavouras, D., Kandarakis, I., Panayiotakis, G.S.

“…The luminescence properties of Lu 0.7Y 0.3AlO 3:Ce (LuYAP:Ce) and (Lu 0.9,Y 0.1) 2SiO 5:Ce (LYSO:Ce) crystals were studied for use in medical X-ray imaging…”
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