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In this paper, a simple and fast method relied upon for designing a Vlasov launcher with a helical cut is proposed. The method is based on graphic interpretation of analytical relationships that link wave parameters (EM field mode) to the launcher’s geometrical dimensions. Using the ray tracing method, a simplified graphic analysis may be carried out. The results obtained are not significantly different from those of rigorous full-wave analyzes. The family of normalized curves that is created in the process greatly facilitates the stage of optimizing the geometrical parameters of the Vlasov launcher.
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Tom
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57--67
Opis fizyczny
Bibliogr. 17 poz., rys., tab.
Twórcy
autor
- Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
autor
- Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
autor
- Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
autor
- Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
Bibliografia
- [1] C.-H. Du, X.-B. Qi, and P.-K. Liu, „Theoretical study of a broadband quasi-optical mode converter for pulse gyrotron devices", IEEE Transac. on Plasma Sci., vol. 44, no. 10, pp. 2348-2355, 2016 [Online]. Available: http://ieeexplore.ieee.org/document/7572128/ (DOI: 10.1109/TPS.2016.2606497).
- [2] Z. Li and J. Feng, „Design of a Vlasov mode converter of 263 GHz gyrotron oscillator for DNP-NMR", The J. of Engineer., vol. 2018, no. 14, pp. 709-713, 2018 [Online]. Available: https://digital-library.theiet.org/content/journals/10.1049/joe.2018.0124
- [3] M. K. Alaria, N. Singh, U. Singh, A. Bera, and A. K. Sinha, „Development of 170 GHz, 0.1 MW short pulse gyrotron", in Proc. Fusion Engineer. and Design, vol. 144, 2019, pp. 87-92 [Online]. Available: https://doi.org/10.1016/j.fusengdes.2019.04.073
- [4] M. Pilossof and M. Einat, „High-average-power second harmonic w-band gyrotron with room-temperature solenoid", IEEE Transac. on Electron Devices, vol. 67, no. 4, pp. 1804-1807, 2020 (DOI: 10.1109/TED.2020.2971653).
- [5] B. Hui-Qi et al., „Analysis of a broadband quasi-optical mode converter for gyrotrons working in multi modes", in Proc. IEEE Asia Pacific Microwave Conf. (APMC), Kuala Lumpur, Malaysia, 2017 (DOI: 10.1109/APMC.2017.8251547).
- [6] C. Gao et al., „Frequency-chirped dynamic nuclear polarization with magic angle spinning using a frequency-agile gyrotron", J. of Magnetic Resonance, vol. 308, 2019 (DOI: 10.1016/j.jmr.2019.106586).
- [7] M. K. Alaria, A. K. Sinha, and H. Khatun, „Design and development of mode launcher for high frequency gyrotron", Infrared Physics & Technol., vol. 75, pp. 187-192, 2016 (DOI:10.1016/j.infrared.2015.12.011).
- [8] C. Zhang, W. Fu, and Y. Yan, „Study on a gyrotron quasi-optical mode converter for terahertz imaging", J. of Electromagnetic Waves and Applications, vol. 35, no. 2, pp. 176-184, 2020 (DOI: 10.1080/09205071.2020.1828186).
- [9] X. Li, „Study of High-harmonic Gyro-devices in the THz Range", Ph.D. Thesis, School of Electronic Engineering and Computer Science, Queen Mary University of London, London, UK, 2016 [Online]. Available: https://qmro.qmul.ac.uk/xmlui/bitstream/handle/123456789/23214/LI Xiang FinalPhD 171016.pdf
- [10] T. Kariya et al., „Development of over-MW gyrotrons for fusion at 14 GHz to sub-THz frequencies", Nuclear Fusion, vol. 57, no. 6, 2017 [Online]. Available: https://iopscience.iop.org/article/10.1088/1741-4326/aa6875
- [11] J. Jin, „Quasi-Optical Mode Converter for a Coaxial Cavity Gyrotron", Forschungszentrum Karlsruhe, Karlsruhe, no. 7264, 2007 [Online]. Available: https://publikationen.bibliothek.kit.edu/270067871/3814966 [in German].
- [12] S. N. Vlasov and I. M. Orlova, „Quasioptical transformer which transforms the waves in a waveguide having a circular cross section into a highly directional wave beam", Radiophysics and Quantum Electronics, vol. 17, no. 1, pp. 115-119, 1974 [Online]. Available: http://link.springer.com/10.1007/BF01037072
- [13] L. A. Vainshtein, “Open Resonators and Open Waveguides”. Boulder, Colorado: Golem Press, 1969.
- [14] V. M. Babic and V. S. Buldyrev, “Short-Wavelength Diffraction Theory”. Moscow: Springer-Verlag Berlin Heidelberg, 1972 (ISBN: 9783642834615).
- [15] M. Blank, „High Efficiency Quasi-Optical Mode Converters for Overmoded Gyrotrons", Ph.D. Thesis, Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, Massachusetts, 1994 [Online]. Available: https://dspace.mit.edu/bitstream/handle/1721.1/34089/32053304-MIT.pdf
- [16] C. A. Balanis, “Advanced Engineering Electromagnetics, 2nd Edition”. Wiley and Sons, 2012 (ISBN: 9780470589489).
- [17] H. Nickel, „Cross reference for hollow metallic waveguides", Spinner, 2020 [Online]. Available: https://www.spinner-group.com/images/download/technical documents/SPINNER TD00036.pdf.
Uwagi
Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).
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Bibliografia
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bwmeta1.element.baztech-f809791d-5c99-4a9d-a619-96692d09f94a