Search Results - "KALIVAS, N"

On the response of Y3Al5O12: Ce (YAG: Ce) powder scintillating screens to medical imaging X-rays by Kandarakis, I., Cavouras, D., Sianoudis, I., Nikolopoulos, D., Episkopakis, A., Linardatos, D., Margetis, D., Nirgianaki, E., Roussou, M., Melissaropoulos, P., Kalivas, N., Kalatzis, I., Kourkoutas, K., Dimitropoulos, N., Louizi, A., Nomicos, C., Panayiotakis, G.

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Influence of tranexamic acid use on venous thromboembolism risk in patients undergoing surgery for spine tumors by Pennington, Zach, Ehresman, Jeff, Schilling, Andrew, Feghali, James, Hersh, Andrew M, Hung, Bethany, Kalivas, Eleni N, Lubelski, Daniel, Sciubba, Daniel M

“…Patients with spine tumors are at increased risk for both hemorrhage and venous thromboembolism (VTE). Tranexamic acid (TXA) has been advanced as a potential…”
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Light emission efficiency and imaging properties of YAP:Ce granular phosphor screens by KALIVAS, N, VALAIS, I, NIKOLOPOULOS, D, KONSTANTINIDIS, A, GAITANIS, A, CAVOURAS, D, NOMICOS, C. D, PANAYIOTAKIS, G, KANDARAKIS, I

“…Phosphor materials are used in medical imaging combined with radiographic film or other photodetectors. Cerium (Ce3+) -doped scintillators are of particular…”
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Polyvinyl alcohol-montmorillonite composites for water purification: Analysis of clay mineral cation exchange and composite particle synthesis by Brown, Karlena, Mendoza, Mary, Tinsley, Tamanika, Bee-DiGregorio, Madeleine Y., Bible, Michael, Brooks, Jerin L., Colorado, Melvin, Esenther, Jacob, Farag, Andrew, Gill, Rachel, Kalivas, Eleni N., Lara, Raquel, Lutz, Alex, Nazaire, Jasmine, Rasines Mazo, Alicia, Rodriguez, Rebeca S., Schwabacher, James C., Zestos, Alexander G., Hartings, Matthew R., Fox, Douglas M.

“…[Display omitted] Municipal and residential water purification rely heavily on activated carbon (AC), but regeneration of AC is costly and cannot be performed…”
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Evaluation of ZnS:Cu phosphor as X-ray to light converter under mammographic conditions by Kandarakis, I., Cavouras, D., Nikolopoulos, D., Anastasiou, A., Dimitropoulos, N., Kalivas, N., Ventouras, E., Kalatzis, I., Nomicos, C., Panayiotakis, G.

“…The aim of the present study was to evaluate ZnS:Cu phosphor for use in X-ray mammographic detectors. This phosphor has never been used in medical imaging…”
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Modeling quantum and structure noise of phosphors used in medical X-ray imaging detectors by Kalivas, N., Costaridou, L., Kandarakis, I., Cavouras, D., Nomicos, C.D., Panayiotakis, G.

“…The noise properties of granular phosphors used in X-ray imaging detectors are studied in terms of a noise transfer function, NTF. This study is performed in…”
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Light emission efficiency and imaging performance of Y3Al5O12: Ce (YAG:Ce) powder screens under diagnostic radiology conditions by CAVOURAS, D, KANDARAKIS, I, MARGETIS, D, VALAIS, I, SIANOUDIS, I, KOURKOUTAS, K, DIMITROPOULOS, N, LOUIZI, A, NOMICOS, C, PANAYIOTAKIS, G, NIKOLOPOULOS, D, KALATZIS, I, KAGADIS, G, KALIVAS, N, EPISKOPAKIS, A, LINARDATOS, D, ROUSSOU, M, NIRGIANAKI, E

“…In this study Y3Al5O12: Ce powder scintillator was evaluated for use in X-ray imaging detectors. This phosphor, also known as YAG: Ce scintillator or P-46…”
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Image quality evaluation and patient dose assessment of medical fluoroscopic X-ray systems: a national study by Economides, S., Hourdakis, C. J., Kalivas, N., Kalathaki, M., Simantirakis, G., Tritakis, P., Manousaridis, G., Vogiatzi, S., Kipouros, P., Boziari, A., Kamenopoulou, V.

“…This study presents the results from a survey conducted by the Greek Atomic Energy Commission (GAEC), during the period 1998–2003, in 530 public and private…”
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A theoretical model evaluating the angular distribution of luminescence emission in X-ray scintillating screens by Kandarakis, I., Cavouras, D., Nikolopoulos, D., Episkopakis, A., Kalivas, N., Liaparinos, P., Valais, I., Kagadis, G., Kourkoutas, K., Sianoudis, I., Dimitropoulos, N., Nomicos, C., Panayiotakis, G.

“…The aim of this study was to examine the angular distribution of the light emitted from radiation-excited scintillators in medical imaging detectors. This…”
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Optical gain signal-to-noise ratio transfer efficiency as an index for ranking of phosphor- photodetector combinations used in X-ray medical imaging by Kalivas, N., Costaridou, L., Kandarakis, I., Cavouras, D., Nomicos, C.D., Panayiotakis, G.

“…Phosphor materials are used in medical imaging combined with radiographic film or other photodetectors. A parameter for choosing a phosphor material is the…”
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Performance of medical radiographic X-ray systems in Greece for the time period 1998–2004 by Economides, S, Hourdakis, C.J, Kalivas, N, Kalathaki, M, Simantirakis, G, Tritakis, P, Manousaridis, G, Vogiatzi, S, Kipouros, P, Boziari, A, Kamenopoulou, V

“…Abstract This study presents the results of the on-site inspections performed by the Greek Atomic Energy Commission (GAEC) on conventional X-ray systems, both…”
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Modeling quantum noise of phosphors used in medical X-ray imaging detectors by Kalivas, N, Kandarakis, I, Cavouras, D, Costaridou, L, Nomicos, C.D, Panayiotakis, G

“…The noise properties of the granular phosphor screens, which are utilized in X-ray imaging detectors, are studied in terms of the quantum noise transfer…”
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Effect of intrinsic-gain fluctuations on quantum noise of phosphor materials used in medical X-ray imaging by KALIVAS, N, COSTARIDOU, L, KANDARAKIS, I, CAVOURAS, D, NOMICOS, C. D, PANAYIOTAKIS, G

“…The quality of a medical image depends, among other parameters, on quantum noise. Quantum noise is affected by the fluctuations in the number of optical quanta…”
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Estimation of the information content of medical images produced by scintillators interacting with diagnostic X-ray beams by Kandarakis, I., Cavouras, D., Kalivas, N., Nomicos, C.D., Panayiotakis, G.S.

“…The information content of medical images produced by X-ray beam–scintillator interaction was assessed by a method involving detective quantum efficiency (DQE)…”
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Heat-kernel regularization of gauge theory by BERN, Z, HALPERN, M. B, KALIVAS, N. G

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Evaluation of the imaging performance of LSO powder scintillator for use in X-ray mammography by Michail, C., David, S., Liaparinos, P., Valais, I., Nikolopoulos, D., Kalivas, N., Toutountzis, A., Cavouras, D., Kandarakis, I., Panayiotakis, G.

“…The aim of the present study was to evaluate the imaging performance of Lu 2SiO 5:Ce (LSO:Ce) powder scintillator for use in X-ray detectors used in…”
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The effect of energy weighting on the SNR under the influence of non-ideal detectors in mammographic applications by Patatoukas, G., Gaitanis, A., Kalivas, N., Liaparinos, P., Nikolopoulos, D., Konstantinidis, A., Kandarakis, I., Cavouras, D., Panayiotakis, G.

“…This work investigates the effect of the energy-weighting technique on the signal to noise ratio (SNR) response of X-ray imaging detectors. So far in the…”
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Evaluation of high packing density powder X-ray screens by Monte Carlo methods by Liaparinos, P., Kandarakis, I., Cavouras, D., Kalivas, N., Delis, H., Panayiotakis, G.

“…Phosphor materials are employed in intensifying screens of both digital and conventional X-ray imaging detectors. High packing density powder screens have been…”
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Efficiency of Lu2SiO5:Ce (LSO) powder phosphor as X-ray to light converter under mammographic imaging conditions by David, S., Michail, C., Valais, I., Nikolopoulos, D., Liaparinos, P., Kalivas, N., Kalatzis, I., Toutountzis, A., Efthimiou, N., Loudos, G., Sianoudis, I., Cavouras, D., Dimitropoulos, N., Nomicos, C.D., Kandarakis, I., Panayiotakis, G.S.

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Continuum regularization of superfield supersymmetry: super QED by KALIVAS, N. G

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