Ioannis Valais

1.7k total citations
132 papers, 1.3k citations indexed

About

Ioannis Valais is a scholar working on Radiation, Radiology, Nuclear Medicine and Imaging and Pulmonary and Respiratory Medicine. According to data from OpenAlex, Ioannis Valais has authored 132 papers receiving a total of 1.3k indexed citations (citations by other indexed papers that have themselves been cited), including 98 papers in Radiation, 80 papers in Radiology, Nuclear Medicine and Imaging and 77 papers in Pulmonary and Respiratory Medicine. Recurrent topics in Ioannis Valais's work include Radiation Detection and Scintillator Technologies (91 papers), Digital Radiography and Breast Imaging (75 papers) and Medical Imaging Techniques and Applications (68 papers). Ioannis Valais is often cited by papers focused on Radiation Detection and Scintillator Technologies (91 papers), Digital Radiography and Breast Imaging (75 papers) and Medical Imaging Techniques and Applications (68 papers). Ioannis Valais collaborates with scholars based in Greece, Poland and United Kingdom. Ioannis Valais's co-authors include I. Kandarakis, C. Michail, George Fountos, Nektarios Kalyvas, George Panayiotakis, S. David, Athanasios Bakas, P. Liaparinos, Dimitrios Nikolopoulos and D. Cavouras and has published in prestigious journals such as SHILAP Revista de lepidopterología, Sensors and Medical Physics.

In The Last Decade

Ioannis Valais

118 papers receiving 1.3k citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Ioannis Valais Greece 21 860 545 494 447 350 132 1.3k
C. Michail Greece 23 822 1.0× 556 1.0× 492 1.0× 480 1.1× 476 1.4× 139 1.4k
Nektarios Kalyvas Greece 18 581 0.7× 398 0.7× 339 0.7× 380 0.9× 315 0.9× 98 970
I. Kandarakis Greece 28 1.5k 1.8× 1.0k 1.9× 874 1.8× 936 2.1× 732 2.1× 204 2.5k
S. David Greece 16 488 0.6× 260 0.5× 291 0.6× 156 0.3× 108 0.3× 65 703
P. Liaparinos Greece 16 419 0.5× 280 0.5× 314 0.6× 296 0.7× 194 0.6× 60 721
Weerapong Chewpraditkul Thailand 22 836 1.0× 277 0.5× 1.3k 2.6× 81 0.2× 234 0.7× 91 1.7k
S. Pani Italy 20 944 1.1× 556 1.0× 300 0.6× 210 0.5× 843 2.4× 80 1.6k
V. Gaysinskiy United States 15 529 0.6× 276 0.5× 227 0.5× 109 0.2× 124 0.4× 58 656
O. Tousignant Canada 15 395 0.5× 116 0.2× 606 1.2× 209 0.5× 309 0.9× 48 1.1k
Shiva Abbaszadeh United States 16 300 0.3× 223 0.4× 274 0.6× 118 0.3× 245 0.7× 83 794

Countries citing papers authored by Ioannis Valais

Since Specialization
Citations

This map shows the geographic impact of Ioannis Valais's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Ioannis Valais with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Ioannis Valais more than expected).

Fields of papers citing papers by Ioannis Valais

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ioannis Valais. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Ioannis Valais. The network helps show where Ioannis Valais may publish in the future.

Co-authorship network of co-authors of Ioannis Valais

This figure shows the co-authorship network connecting the top 25 collaborators of Ioannis Valais. A scholar is included among the top collaborators of Ioannis Valais based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Ioannis Valais. Ioannis Valais is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
2.
Michail, C., Nektarios Kalyvas, Athanasios Bakas, et al.. (2025). Light Output Response of a Barium Fluoride (BaF2) Inorganic Scintillator Under X-Ray Radiation. Inorganics. 13(3). 83–83.
3.
Michail, C., P. Liaparinos, Nektarios Kalyvas, et al.. (2024). Phosphors and Scintillators in Biomedical Imaging. Crystals. 14(2). 169–169. 15 indexed citations
4.
Valais, Ioannis, Nektarios Kalyvas, George Fountos, et al.. (2024). Influence of temperature on the luminescence output of two GAGG:Ce single crystals scintillators. Procedia Structural Integrity. 66. 153–160.
5.
Michail, C., P. Liaparinos, Nektarios Kalyvas, et al.. (2024). Radiation Detectors and Sensors in Medical Imaging. Sensors. 24(19). 6251–6251. 5 indexed citations
6.
Kalyvas, Nektarios, Athanasios Bakas, George Fountos, et al.. (2023). Response of Lead Fluoride (PbF2) Crystal under X-ray and Gamma Ray Radiation. Photonics. 10(1). 57–57.
7.
Michail, C., Ioannis Valais, Athanasios Bakas, et al.. (2023). Optical Photon Propagation Characteristics and Thickness Optimization of LaCl3:Ce and LaBr3:Ce Crystal Scintillators for Nuclear Medicine Imaging. Crystals. 14(1). 24–24. 6 indexed citations
8.
Nikolopoulos, Dimitrios, et al.. (2023). Radon Assessment: An Overview of Concentration Variability and Synergies with Other Health Risk Factors in Indoor Air. SHILAP Revista de lepidopterología. 115–115. 1 indexed citations
9.
Kalyvas, Nektarios, C. Michail, P. Liaparinos, et al.. (2023). A Novel Method to Model Image Creation Based on Mammographic Sensors Performance Parameters: A Theoretical Study. Sensors. 23(4). 2335–2335.
10.
Michail, C., Nektarios Kalyvas, Athanasios Bakas, et al.. (2022). Luminescence Efficiency of Cerium Bromide Single Crystal under X-ray Radiation. Crystals. 12(7). 909–909. 5 indexed citations
11.
Valais, Ioannis, et al.. (2022). Cerium Bromide Single-Crystal X-Ray Detection and Spectral Compatibility Assessment with Various Optical Sensors. Material Design & Processing Communications. 2022. 1–7. 2 indexed citations
12.
Scalise, Lorenzo, D. Rinaldi, P. Mengucci, et al.. (2022). Luminescence and Structural Characterization of Gd2O2S Scintillators Doped with Tb3+, Ce3+, Pr3+ and F for Imaging Applications. Crystals. 12(6). 854–854. 9 indexed citations
13.
Michail, C., Ioannis Valais, Athanasios Bakas, et al.. (2022). Efficiency Properties of Cerium-Doped Lanthanum Chloride (LaCl3:Ce) Single Crystal Scintillator under Radiographic X-ray Excitation. Crystals. 12(5). 655–655. 6 indexed citations
14.
Koukou, V., N. Martini, Anastasios Konstantinidis, et al.. (2021). On the Response of a Micro Non-Destructive Testing X-ray Detector. Materials. 14(4). 888–888. 24 indexed citations
15.
Konstantinidis, Anastasios, Ioannis Valais, Nektarios Kalyvas, et al.. (2020). On the Optical Response of Tellurium Activated Zinc Selenide ZnSe:Te Single Crystal. Crystals. 10(11). 961–961. 15 indexed citations
16.
Αναστασίου, Α., Athanasios Bakas, C. Michail, et al.. (2019). Spatial frequency domain analysis of a commercially available digital dental detector. Measurement. 151. 107171–107171. 4 indexed citations
17.
Michail, C., George Fountos, Nektarios Kalyvas, et al.. (2017). Detective quantum efficiency (DQE) in PET scanners: A simulation study. Applied Radiation and Isotopes. 125. 154–162. 16 indexed citations
18.
Michail, C., Ioannis Valais, N. Martini, et al.. (2016). Determination of the detective quantum efficiency (DQE) of CMOS/CsI imaging detectors following the novel IEC 62220-1-1:2015 International Standard. Radiation Measurements. 94. 8–17. 44 indexed citations
19.
Michail, C., George Fountos, P. Liaparinos, et al.. (2010). Light emission efficiency and imaging performance of powder scintillator under x‐ray radiography conditions. Medical Physics. 37(7Part1). 3694–3703. 53 indexed citations
20.
Valais, Ioannis, C. Michail, S. David, et al.. (2008). A comparative study of the luminescence properties of LYSO:Ce, LSO:Ce, GSO:Ce and BGO single crystal scintillators for use in medical X-ray imaging. Physica Medica. 24(2). 122–125. 44 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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