Using microwave refraction to determine local inhomogeneities of a rotating plasma

• Autorzy: Martseniuk Yurii P. , Siusko Yevhen V. , Kovtun Yurii V.

Identyfikatory

DOI

10.2478/nuka-2023-0003

• Języki publikacji: EN

Abstrakty

EN

To determine the local inhomogeneities of a rotating plasma, the method based on microwave refraction was used. The method is based on spectral and correlation analysis of the refl ected signals from the rotating plasma layer at normal and inclined microwave incidence. This method allowed us to determine local inhomogeneities of plasma electron density, angles of azimuthal displacement of grooves, and its angular frequency of rotation. Using an additional 4th horn antenna, in contrast to previous works, it was possible to fi nd and analyze two regions with azimuthal inhomogeneities in the rotating plasma. Analysis of the refl ected signals shows the presence of four grooves, and the angular frequency of rotation  = 1.16 × 104 rad/s was also determined.

Słowa kluczowe

EN

horn antenna; inhomogeneities; reflected microwave; reflectometry; refraction

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2023
• Tom: Vol. 68, No. 1
• Strony: 19--24
• Opis fizyczny: Bibliogr. 25 poz., rys.

Twórcy

autor

Martseniuk Yurii P.

• Institute of Plasma Physics National Science Center “Kharkiv Institute of Physics and Technology” Kharkiv, Ukraine

• https://orcid.org/0000-0002-2574-7325

autor

Siusko Yevhen V.

• Institute of Plasma Physics National Science Center “Kharkiv Institute of Physics and Technology” Kharkiv, Ukraine

• https://orcid.org/0000-0002-0789-7100

autor

Kovtun Yurii V.

• Institute of Plasma Physics National Science Center “Kharkiv Institute of Physics and Technology” Kharkiv, Ukraine

• https://orcid.org/0000-000+3-4948-0896

Bibliografia

• 1. Lehnert, B. (1971). Rotating plasmas review paper rotating plasmas. Nucl. Fusion, 11(5), 485. http://iopscience.iop.org/0029-5515/11/5/010.
• 2. Boeuf, J. -P. (2014). Rotating structures in low temperature magnetized plasmas – insight from particle simulations. Front. Physics, 2, 74. https://doi.org/10.3389/fphy.2014.00074.
• 3. Boeuf, J. -P., & Smolyakov, A. (2018). Preface to special topic: Modern issues and applications of E x B plasmas. Phys. Plasmas, 25(6), 061001. https://doi.org/10.1063/1.5040848.
• 4. Kaganovich, I. D., Smolyakov, A., Raitses, Y., Ahedo, E., Mikellides, I. G., Jorns, B., Taccogna, F., Gueroult, R., Tsikata, S., Bourdon, A., Boeuf, J. -P., Keidar, M., Powis, A. T., Merino, M., Cappelli, M., Hara, K., Carlsson, J. A., Fisch, N. J., Chabert, P., Schweigert, I., Lafleur, T., Matyash, K., Khrabrov, A. V., Boswell, R. W., & Fruchtman, A. (2020). Physics of ExB discharges relevant to plasma propulsion and similar technologies. Phys. Plasmas, 27(12), 120601. https://doi.org/10.1063/5.0010135.
• 5. Lucken, R., Bourdon, A., Lieberman, M. A., & Chabert, P. (2019). Instability-enhanced transport in low temperature magnetized plasma. Phys. Plasmas, 26(7), 070702. https://doi.org/10.1063/1.5094422.
• 6. Gravier, E., Brochard, F., Bonhomme, G., Pierre, T., & Briançon, J. L. (2004). Low-frequency instabilities in a laboratory magnetized plasma column. Phys. Plasmas, 11(2), 529–537. https://doi.org/10.1063/1.1636479.
• 7. Lockwood Estrin, F., Karkari, S. K., & Bradley, J. W. (2017). Triple probe interrogation of spokes in a HiPIMS discharge. J. Phys. D-Appl. Phys., 50(29). https://doi.org/10.1088/1361-6463/aa7544.
• 8. Hartfuss, H. J., & Geist, T. (2013). Fusion plasma diagnostics with mm-waves: An introduction. Hamburg: Wiley.
• 9. Mazzucato, E. (2014). Electromagnetic waves for thermonuclear fusion research. World Scientific Publishing.
• 10. Conway, G. D. (2006). Microwave refl ectometry for fusion plasma diagnosis. Nucl. Fusion, 46(9), S665. https://doi.org/10.1088/0029-5515/46/9/S01.
• 11. Grekov, D. L., & Tretiak, K. K. (2017). Investigation of dual polarization reflectometry for determination of plasma density and magnetic field in a spherical tokamak. J. Fusion Energy, 36(1), 1–8. https://doi.org/10.1007/s10894-016-0114-x
• 12. Pavlichenko, O. S., Skibenko, A. I., Fomin, I. P., Pinos, I. B., Ocheretenko, V . L., & Berezhniy, V. L. (2000). A simple method of poloidal rotation velocity measurement in toroidal plasmas via microwave reflectometry. Probl. At. Sci. Technol., 6, 172–174.
• 13. Prisiazhniuk, D., Krämer-Flecken, A., Conway, G. D., Happel, T., Lebschy, A., Manz, P., Nikolaeva, V., & Stroth, U. (2017). Magnetic field pitch angle and perpendicular velocity measurements from multi-point time-delay estimation of poloidal correlation reflectometry. Plasma Phys. Control. Fusion, 59(2), 025013.https://doi.org/10.1088/1361-6587/59/2/025013.
• 14. Siusko, Y. V., & Kovtun, Yu. V. (2021). An application of microwaves refraction for inhomoge neous plasma diagnostic. Probl. At. Sci. Technol., 2, 163–170.https://doi.org/10.46813/2021-131-163.
• 15. Kovtun, Yu. V., & Siusko, Y. V. (2019). Determining local inhomogeneities of rotating plasma density via microwave refraction. Phys. Lett. A, 383(31), 125880.https://doi.org/10.1016/j.physleta.2019.125880.
• 16. Kovtun, Y., & Siusko, Y. (2020). Determining the angular frequency of rotating cylinder via microwave. In 2020 IEEE Ukrainian Microwave Week, UkrMW 2020 – Proceedings (pp. 888–892). DOI: 10.1109/UkrMW49653.2020.9252707.
• 17. Kovtun, Y. V., Shapoval, A. N., & Siusko, Y. V. (2019). Observation of multiply charged states ions in a high-power pulsed refl ex discharge. Plasma Sources Sci. Technol., 28(10), 105009. https://doi.org/10.1088/1361-6595/ab46c8.
• 18. Kovtun, Yu. V., Skibenko, A. I., Skibenko, E. I., Larin, Yu. V., & Yuferov, V. B. (2009). Emission of multicomponent plasma pulsed refl ex discharge. Bulletin of the National Technical University “KhPI” Series “High voltage engineering and electrophysics”, 39, 101–108.
• 19. Shanmugan, K. S., & Breipohl, A. M. (1988). Random signals, detection, estimation and data analysis. Hoboken: Wiley.
• 20. Kovtun, Yu. V., & Siusko, Y. V. (2018). Determining local inhomogeneities of the rotating plasma density via microwave refraction. In International Conference–School on Plasma Physics and Controlled Fusion. Books of abstract, September 10–13, 2018 (p. 175). Kharkiv, Ukraine.
• 21. Bendat, J. S., & Piersol, A. G. (2011). Random data: analysis and measurement procedures. John Wiley & Sons.
• 22. Kovtun, Yu. V., Skibenko, E. I., Skibenko, A. I., & Yuferov, V. B. (2013). Rotation of plasma layers with various densities in crossed EB fi elds. Ukr. J. Phys., 58(05), 450–457. https://doi.org/10.15407/ujpe58.05.0450.
• 23. Kovtun, Yu. V., Syusko, Y. V., Skibenko, E. I., & Skibenko, A. I. (2018). Experimental study of inhomogeneous refl ex-discharge plasma using microwave refraction interferometry. Ukr. J. Phys., 63(12), 1057.https://doi.org/10.15407/ujpe63.12.1057.
• 24. Kovtun, Yu. V., Skibenko, E. I., Skibenko, A. I., & Yuferov, V. B. (2013). Rotation of plasma layers with various densities in crossed E  B fi elds. Ukr. J. Phys., 58, 450.
• 25. Kovtun, Yu. V., Skibenko, A. I., Skibenko, E. I., & Yuferov, V. B. (2013). Analysis of errors in the plasma rotation velocity measurement by the method of microwave correlation reflectometry. In 2013 International Kharkov Symposium on Physics and Engineering of Microwaves, Millimeter and Submillimeter Waves (pp. 554–556). https://doi.org/10.1109/MSMW.2013.6622119.

Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).