We propose an original way to produce several thin helical electron beams using one common magnetic system. The proposed systems with broken azimuthal symmetry of the emission surface of the adiabatic magnetron-injection gun (MIG) can be used in multibarrel gyrotrons. Specific features of the new system are analyzed on an example of MIGs optimized for gyrotron operation at a frequency of 140 GHz and compared with MIGs for other frequency ranges. The influence of the azimuthal drift on the operation of the gyrotron is analyzed both in the regime of singlefrequency stable generation and in the case of switching on/off the gyrotron setup.
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Radiofizika, Vol. 63, Nos. 8, pp. 704–713, January 2020.
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Zapevalov, V.E., Zuev, A.S., Kuftin, A.N. et al. On Designing the Electron-Optical System of a Multibarrel Gyrotron. Radiophys Quantum El 63, 634–642 (2021). https://doi.org/10.1007/s11141-021-10086-8
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DOI: https://doi.org/10.1007/s11141-021-10086-8