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Realization of an Octave Frequency Step-Tuning of Sub-terahertz Gyrotron for Advanced Fusion Research

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Abstract

Theoretical and experimental investigation of broadband step-frequency tuning in a prototype sub-terahertz gyrotron for advanced plasma fusion research is presented. The possibilities of successive excitation of various operating modes in a conventional gyrotron cavity are considered. Restrictions of the gyrotron capability due to properties of the electron beam formation and the radiation output systems are determined and discussed. Successful excitation of modes with frequencies range of 133–250 GHz with output power not less than 35 kW was demonstrated in experiments.

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Funding

This work was supported by Russian Federation President Grant (project number MK-3413.2021.1.2).

Council on grants of the President of the Russian Federation,MK-3413.2021.1.2,Andrey Fokin

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Authors and Affiliations

  1. Institute of Applied Physics of Russian Academy of Sciences (IAP RAS), Nizhny Novgorod, Russia

    A. S. Zuev, A. P. Fokin, A. A. Ananichev, E. S. Semenov, O. P. Plankin, A. N. Kuftin, V. E. Zapevalov & M. Yu. Glyavin

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  1. A. S. Zuev
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  2. A. P. Fokin
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  3. A. A. Ananichev
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  4. E. S. Semenov
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  6. A. N. Kuftin
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  7. V. E. Zapevalov
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Correspondence to A. P. Fokin.

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Zuev, A.S., Fokin, A.P., Ananichev, A.A. et al. Realization of an Octave Frequency Step-Tuning of Sub-terahertz Gyrotron for Advanced Fusion Research. J Infrared Milli Terahz Waves 42, 1131–1141 (2021). https://doi.org/10.1007/s10762-021-00832-4

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