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Highly Selective Oversized Slotted Cavities for Relativistic Millimeter Wave Gyrotrons

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Abstract

Based on an analytical approach and numerical simulation, it is shown that, in an oversized cylindrical cavity with M longitudinal slits, the coupling of partial modes of a regular waveguide with M and 2M azimuthal indices can lead to the formation of high-Q modes with low radial losses at cut-off frequencies. This provides a possibility for selective excitation of such modes by helical electron beams in relativistic millimeter-wave gyrotrons.

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Funding

This work was carried out within State Assignment no. 0030-2021-0027 (Program “Development of Equipment, Technologies, and Scientific Research in the Field of Atomic Energy Use in the Russian Federation for the Period up to 2024”).

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Authors and Affiliations

  1. Institute of Applied Physics, Russian Academy of Sciences, 603155, Nizhny Novgorod, Russia

    Y. Y. Danilov, A. N. Leontyev, A. M. Malkin, R. M. Rozental, D. Y. Shchegolkov &  N. S. Ginzburg

  2. Lobachevskii State University of Nizhny Novgorod, 603950, Nizhny Novgorod, Russia

    A. M. Malkin

Authors
  1. Y. Y. Danilov
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  2. A. N. Leontyev
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  3. A. M. Malkin
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  4. R. M. Rozental
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  5. D. Y. Shchegolkov
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  6. N. S. Ginzburg
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Corresponding author

Correspondence to R. M. Rozental.

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The authors declare that they have no conflicts of interest.

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Translated by E. Chernokozhin

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Danilov, Y.Y., Leontyev, A.N., Malkin, A.M. et al. Highly Selective Oversized Slotted Cavities for Relativistic Millimeter Wave Gyrotrons. Dokl. Phys. 67, 159–164 (2022). https://doi.org/10.1134/S1028335822060040

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  • DOI: https://doi.org/10.1134/S1028335822060040

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