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Coaxial-Type Magnetically Isolated Relativistic Vircator

  • MICROWAVE ELECTRONICS
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Abstract

A coaxial-type magnetically isolated relativistic vircator was simulated by the particle-in-cell method. It is shown that, after the creation of a virtual cathode in the second vircator tube, a squeezed state of the electron beam is established in the first vircator tube, which represents a one-component hot electron plasma with an electron density of n ≅ 1.4 × 1011 cm–3 and a temperature of 50 keV; the plasma formation time is 125 ns. The microwave characteristics of the vircator were calculated. The peak microwave power generated during the first 100 ns (the peak efficiency is ~17.5%) was found to be ~1.4 GW and, after the squeezed state is established, the generation power decreased to an average value of ~250 MW (the average efficiency is ~3%). A spectrogram of the radial component of the electric field in a coaxial line was calculated. It was observed that the oscillation frequency increases during the first 100 ns and then remains unchanged at a level of \(f \cong 1.4\) GHz.

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Authors and Affiliations

  1. Russian Federal Nuclear Center All-Russian Research Institute of Experimental Physics, 607188, Sarov, Nizhny Novgorod oblast, Russia

    A. E. Dubinov

  2. National Research Nuclear University Moscow Engineering Physics Institute (MEPhI), Sarov Physicotechnical Institute, 607189, Sarov, Nizhny Novgorod oblast, Russia

    A. E. Dubinov

  3. Joint Institute for High Temperatures, Russian Academy of Sciences, 125412, Moscow, Russia

    V. P. Tarakanov

  4. National Research Nuclear University MEPhI, 115409, Moscow, Russia

    V. P. Tarakanov

Authors
  1. A. E. Dubinov
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  2. V. P. Tarakanov
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Correspondence to A. E. Dubinov.

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Translated by E. Bondareva

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Dubinov, A.E., Tarakanov, V.P. Coaxial-Type Magnetically Isolated Relativistic Vircator. J. Commun. Technol. Electron. 67, 675–679 (2022). https://doi.org/10.1134/S1064226922050059

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  • DOI: https://doi.org/10.1134/S1064226922050059

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