Δ. Β. Πεπόνης

Ο Δρ. Δημήτριος Πεπόνης γεννήθηκε στην Αθήνα το 1987. Είναι κάτοχος πτυχίου Φυσικής (Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών, 2011), μεταπτυχιακού διπλώματος ειδίκευσης στην Ηλεκτρονική και Ραδιοηλεκτρολογία (ΕΚΠΑ, 2014) και Διδακτορικού Διπλώματος Φυσικών Επιστημών (ΕΚΠΑ,2020). Από το 2011 είναι μέλος της ομάδας Μικροκυματικών και Οπτικών Εφαρμογών του Τμήματος Φυσικής, ΕΚΠΑ.

Ερευνητικά ενδιαφέροντα

  • υπολογιστικός ηλεκτρομαγνητισμός
  • διάδοση ηλεκτρομαγνητικών κυμάτων σε σύνθετες κυματοδηγικές διατάξεις
  • αλληλεπίδραση ηλεκτρονικής δέσμης με ηλεκτρομαγνητικά κύματα
  • μελέτη και προσομοίωση υψίσυχνων μικροκυματικών λυχνιών
  • ανάπτυξη και παραλληλοποίηση υπολογιστικών κωδίκων

ResearchGate

Google Scholar

LinkedIn

Semantic Scholar

Άρθρα σε διεθνή επιστημονικά περιοδικά με κριτές

  • G. Granucci, et al., “Conceptual Design of the EU DEMO EC-System: Main Developments and R&D Achievements”, Nuclear Fusion, vol. 57, no 11, 2017.
  • K. A. Avramidis, et al., “Overview of recent gyrotron R&D towards DEMO within EUROfusion Work Package Heating and Current Drive”, Nucl. Fusion, 2019.
  • S. Garavaglia, et al., “EU DEMO EC system preliminary conceptual design”, Fusion Engineering and Design, vol. 136, pp. 1173-1177, 2019.
  • D. V. Peponis, G. P. Latsas, Z. C. Ioannidis and I. G. Tigelis, “Dispersion properties of rectangularly-corrugated waveguide structures by the in-house 3D FDTD code COCHLEA in cylindrical coordinates”, in IET Microwaves, Antennas & Propagation, vol. 13, no. 1, pp. 28-34, 2019.
  • D. V. Peponis, G. P. Latsas and I. G. Tigelis, “Investigation of Cylindrical Waveguides with Periodic Wedge-Shaped Azimuthal Corrugations Excited by TE Modes Using the FDTD Method”, in J Infrared Milli Terahz Waves, vol. 13, no. 1, pp. 28-34, 2021.
  • I. G. Chelis, D. V. Peponis and A. Zelkas, “Self-consistent modeling of the electron–cyclotron maser interaction in lossy structures based on a full-wave Green's function approach”, in Physics of Plasmas, vol. 29, 033103, 2021.
  • M. Q. Tran, et al. “Status and future development of Heating and Current Drive for the EU DEMO”, in Fusion Engineering and Design, vol. 180, 2022.
  • D. V. Peponis, et al. “FDTD investigation of cylindrical waveguides with azimuthal corrugations excited by axisymmetric TE modes”, in International Journal of Applied Electromagnetics and Mechanics, vol. Pre-press, 2022.

 

Δημοσιεύσεις σε πρακτικά συνεδρίων

  • D. V. Peponis, G. P. Latsas, Z.C. Ioannidis and I. G. Tigelis, “FDTD Simulation of a Cylindrical Waveguide Using Longitudinal Current Distribution as an Excitation Scheme”, PIERS 2015: 6-9 July 2015, Prague, Czech Republic.
  • D.V. Peponis, Z.C. Ioannidis, K.A. Avramidis and I. G. Tigelis, “Sensitivity Analysis of a 140 GHz Coaxial Gyrotron Cavity with Corrugations on the Inner and Outer Walls”, 41st International Conference on Infrared, Millimeter and Terahertz Waves, 25-28 September 2016, Copenhagen, Denmark.
  • K. A. Avramidis, et al., “Simulations of the Experimental Operation of the EU 170 GHz, 1 MW Short-Pulse Prototype Gyrotron for ITER”, 41st International Conference on Infrared, Millimeter and Terahertz Waves, 25-28 September 2016, Copenhagen, Denmark.
  • J. Jelonnek, et al., “European Research Activities Towards a Future DEMO Gyrotron”, 10th international workshop on “Strong Microwaves and Terahertz Waves: Sources and Applications, July 2017, Russian Federation.
  • S. Garavaglia, et al., “EU DEMO EC System preliminary conceptual design”, 13th International Symposium on Fusion Nuclear Technology (ISFNT), 25-29 September 2017 Kyoto, Japan.
  • J. Jelonnek, et al., “Towards Advanced Fusion Gyrotrons: 2018 Update on Activities within EUROfusion”, 20th Joint Workshop on Electron Cyclotron Emission (ECE) and Electron Cyclotron Resonance Heating (ECRH), 14-17 May 2018, Greifswald, Germany.
  • J. Jelonnek et al., “From W7-X Towards ITER and Beyond: 2019 Status on EU Fusion Gyrotron Developments”, 2019 International Vacuum Electronics Conference (IVEC), 29 April 2019-01 May 2019, Busa, South Korea.
  • D. V. Peponis, G. P. Latsas, I.G. Chelis and I. G. Tigelis, “Calculation of electron beam properties under the presence of an axially varying magnetostatic field by using the FDTD code COCHLEA”, 41st Photonics & Electromagnetics Research Symposium (PIERS 2019): 16-20 June 2019, Rome, Italy.
  • D. V. Peponis, G. P. Latsas, I.G. Chelis and I. G. Tigelis, “Propagation Characteristics of Periodic Azimuthally Corrugated Waveguides Derived by the FDTD Code COCHLEA”, 44st International Conference on Infrared, Millimeter and Terahertz Waves, 1-6 September 2019, Paris, France.
  • I. Chelis, D. V. Peponis, G. P. Latsas, I. G. Tigelis, “Increasing the diffraction losses in gyrotron beam tunnels for improved suppression of parasitic oscillations”, 44st International Conference on Infrared, Millimeter and Terahertz Waves, 1-6 September 2019, Paris, France.
  • J. Jelonnek, et al, “Research on Gyrotron Components and Control for Advanced EC Heating, Plasma Control and Diagnostics”, 30th International Toki Conference on Plasma and Fusion Research (ITC 2021), 16-19 November 2021, online.
  • D. V. Peponis, G. P. Latsas and I. G. Tigelis, “FDTD Investigation of cylindrical waveguides with azimuthal corrugations excited by TE modes”, 20th International Symposium on Applied Electromagnetics and Mechanics (ISEM), 6-8 June 2022, Thessaloniki, Greece.
  • D. V. Peponis et, al, “FDTD Analysis of Cylindrical Waveguides With Both Axial and Azimuthal Corrugations”, 47th International Conference on Infrared, Millimeter and Terahertz Waves, 28 August-2 September 2022, The Delft, Netherlands.

Ανακοινώσεις σε Συνέδρια

  • J. Jelonnek, et al., “Progress in EUROfusion on Gyrotron R&D and advanced developments for DEMO”, US-EU-JPN Heating Technology Workshop, 21-23 September 2016, Leinsweiler, Germany.
  • J. Jelonnek, et al., “2017 Status of Gyrotron R&D and Advanced Developments within KIT and EUROfusion”, US-EU-JPN Heating Technology Workshop, 5-8 September 2017, Santa Monica, CA, USA.
  • J. Jelonnek, et al., “2018 Status of Gyrotron R&D for W7-X, TCV, ITER and EU DEMO within Europe”, US-EU-JPN Heating Technology Workshop, 5-8 September 2018, Gotemba, Japan.
  • J. Jelonnek et al., “2019 Status and Focus Areas in the Development of an Advanced Gyrotron for EU DEMO”, US-EU-JPN Heating Technology Workshop, 9-12 September 2019, Freiburg, Germany.
  • I. G. Tigelis et al., “Gyrotron coaxial cavities with corrugations on both the inner and outer walls”, US-EU-JPN Heating Technology Workshop, 9-12 September 2019, Freiburg, Germany.
  • S. Illy et. al, “Sounding the Possibilities of Megawatt-Class Fusion Gyrotrons Operating at the Second Harmonic of the Cyclotron Frequency”, 32nd Symposium on Fusion Technology (SOFT 2022), 18 August – 23 September 2022, Dubrovnik, Croatia.