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Formation and Diagnostics of Intense Relativistic Helical Electron Beams for Gyrotrons

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Radiophysics and Quantum Electronics Aims and scope

Abstract

We develop a magnetron-injection gun for a 1-cm wavelength gyrotron, which allows us to increase the operating current up to 50% of the Langmuir current of the gun by reducing the time required to bring electrons to the high-potential region. To measure the velocity distributions in helical electron beams for energies of several hundreds of keV, we propose, develop, and study a new electron-velocity distribution analyzer based on the phenomenon of electron reflection from an adiabatic magnetic mirror. The results of our study demonstrate that the gun is capable of forming high-quality intense beams suitable for generating microsecond microwave radiation with power higher than 10 MW in gyrotrons.

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Authors and Affiliations

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

    N. I. Zaitsev, E. V. Ilyakov, I. S. Kulagin, V. K. Lygin & V. E. Nechaev

  2. N. I. Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod, Russia

    V. N. Manuilov

Authors
  1. N. I. Zaitsev
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  2. E. V. Ilyakov
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  3. I. S. Kulagin
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  4. V. K. Lygin
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  5. V. N. Manuilov
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  6. V. E. Nechaev
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Correspondence to N. I. Zaitsev.

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Zaitsev, N.I., Ilyakov, E.V., Kulagin, I.S. et al. Formation and Diagnostics of Intense Relativistic Helical Electron Beams for Gyrotrons. Radiophysics and Quantum Electronics 47, 405–413 (2004). https://doi.org/10.1023/B:RAQE.0000046314.94530.40

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  • DOI: https://doi.org/10.1023/B:RAQE.0000046314.94530.40

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