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<p>The specificity of inverse gyrotron magnetron-injector guns (IMIGs) is the negative radius of curvature of the cathode compared to traditional MIGs in azimuthal cross-section (the cathode is an external electrode, not an internal one). As a result, the distance between the minimum point of the electron trajectory at the end of the first turn of the trajectory and the surface of the cathode is significantly smaller than in traditional MIGs, which opens up the possibility of intercepting particles with the highest rotational velocities by the cathode. The article presents estimates of the IMIG parameters at which such interception is possible and, as a result, a reduction in the proportion of electrons subsequently reflected from the magnetic mirror at the entrance to the resonator takes place.</p>

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On the Possibility of Intercepting Electrons with High Rotational Velocities in Inverse Gyrotron Magnetron-Injection Guns

  • 期刊论文

  • 发表日期：

    2026年3月10日

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  • Vladimir Manuilov,
  • Mikhail Proyavin,
  • Aleksandr Aktanaev

摘要

The specificity of inverse gyrotron magnetron-injector guns (IMIGs) is the negative radius of curvature of the cathode compared to traditional MIGs in azimuthal cross-section (the cathode is an external electrode, not an internal one). As a result, the distance between the minimum point of the electron trajectory at the end of the first turn of the trajectory and the surface of the cathode is significantly smaller than in traditional MIGs, which opens up the possibility of intercepting particles with the highest rotational velocities by the cathode. The article presents estimates of the IMIG parameters at which such interception is possible and, as a result, a reduction in the proportion of electrons subsequently reflected from the magnetic mirror at the entrance to the resonator takes place.