
Publications of S. Ponomarenko
All genres
Journal Article (9)
1.
Journal Article
72 (3), pp. 1383 - 1389 (2025)
Coupling of Spoof Surface Plasmon Polariton With Multiple-Order Smith–Purcell Radiation in THz Cherenkov Oscillator. IEEE Transactions on Electron Devices 2.
Journal Article
: Overview of the first Wendelstein 7-X long pulse campaign with fully water-cooled plasma facing components. Nuclear Fusion 64, 112002 (2024)
3.
Journal Article
52 (6), pp. 2045 - 2049 (2024)
Suppression of Parasitic Modes in a Cylindrical Gyrotron Beam Tunnel by a Wall Corrugation with Schroeder Diffuser Structures. IEEE Transactions on Plasma Science 4.
Journal Article
: Commissioning and first results of the 174 GHz CTS diagnostic at W7-X. Journal of Instrumentation 19, C03056 (2024)
5.
Journal Article
: Experimental Results of the Novel 1.5-MW-Class 140-GHz Continuous-Wave Gyrotron for the Wendelstein 7-X Stellarator. IEEE Electron Device Letters 45 (12), pp. 2550 - 2553 (2024)
6.
Journal Article
: Development of the 174 GHz collective Thomson scattering diagnostics at Wendelstein 7-X. Review of Scientific Instruments 95, 013501 (2024)
7.
Journal Article
71 (6), pp. 3940 - 3944 (2024)
Radiation Output of the 330 GHz Continuous-Wave Clinotron Oscillator with Modified Cavity. IEEE Transactions on Electron Devices 8.
Journal Article
70 (10), pp. 5319 - 5326 (2023)
The Regime of the Efficiency Increase by Use of Long Circuits in the THz Cherenkov Oscillator. IEEE Transactions on Electron Devices 9.
Journal Article
70 (11), pp. 5921 - 5925 (2023)
Operational Characteristics of the 175-GHz Continuous-Wave Clinotron. IEEE Transactions on Electron Devices Conference Paper (3)
10.
Conference Paper
: Progress of European Industrial Gyrotron Developments for Nuclear Fusion. In: 2023 24th International Vacuum Electronics Conference (IVEC). 24th International Vacuum Electronics Conference (IVEC), Chengdu, April 25, 2023 - April 28, 2023. IEEE, New York, NY (2023)
11.
Conference Paper
Current Instabilities in Vacuum Electron Devices and Semiconductor Avalanche Diodes for Generation of THz Oscillations. In: 2023 International Conference on Optical MEMS and Nanophotonics (OMN) and SBFoton International Optics and Photonics Conference (SBFoton IOPC). International Conference on Optical MEMS and Nanophotonics (OMN) / SBFoton International Optics and Photonics Conference (SBFoton IOPC), Campinas, July 31, 2023 - August 03, 2023. IEEE, New York, NY (2023)
12.
Conference Paper
Sub-THz CW Clinotron Cavity Design. In: 2023 24th International Vacuum Electronics Conference (IVEC). 24th International Vacuum Electronics Conference (IVEC), Chengdu, April 25, 2023 - April 28, 2023. IEEE, New York, NY (2023)
Talk (9)
13.
Talk
: Exploring ICE Dynamics in Wendelstein 7-X: From Startup to Fast Ion-Driven Instabilities. 25th Topical Conference on Radio-Frequency Power in Plasmas (RFPPC 2025), Hohenkammer (submitted)
14.
Talk
: Results of Frequency Stabilization of a MW-Class Gyrotron at W7-X for the CTS Diagnostic during OP 2.1. 22nd Joint Workshop on Electron Cyclotron Emission (ECE) and Electron Cyclotron Resonance Heating (ECRH) (EC-22), Daejeon (submitted)
15.
Talk
: THALES TH1507U 140 GHz 1.5 MW CW Industrial Gyrotron for W7-X ECRH System Upgrade. Combined 25th Annual IEEE International Vacuum Electronics Conference + 15th Annual International Vacuum Electron Sources Conference (IVEC + IVESC 2024), Monterey, CA (submitted)
16.
Talk
Operational Characteristics of the 330 GHz Continuous-Wave Clinotron with Modified Cavity. Combined 25th Annual IEEE International Vacuum Electronics Conference + 15th Annual International Vacuum Electron Sources Conference (IVEC + IVESC 2024), Monterey, CA (2024)
17.
Talk
: Progress of European Industrial Gyrotron Developments for Nuclear Fusion. 24th International Vacuum Electronics Conference (IVEC), Chengdu (2023)
18.
Talk
: Commissioning and first results of the 174 GHz CTS diagnostic at W7-X. 20th International Symposium on Laser-Aided Plasma Diagnostics 2023 (LAPD20), Kyoto (submitted)
19.
Talk
: Development and Commissioning of Upgraded Microwave Radiometer for CTS Diagnostics at W7-X Stellarator. 5th European Conference on Plasma Diagnostics (ECPD 2023), Rethymno (submitted)
20.
Talk
Sub-THz CW Clinotron Cavity Design. 24th International Vacuum Electronics Conference (IVEC), Chengdu (2023)