Powerful Cherenkov masers with 2D slow-wave structures intended for powering systems of Compton-type FELs

Nikolai Yu. Peskov; Edward B. Abubakirov; Andrey V. Arzhannikov; Andrey N. Denisenko; Naum S. Ginzburg; Andrey M. Malkin; Petr V. Kalinin; Evgeny S. Sandalov; Stanislav L. Sinitsky; Vasily D. Stepanov; Vladislav Yu. Zaslavsky

doi:10.1117/12.2579567

17 November 2020 Powerful Cherenkov masers with 2D slow-wave structures intended for powering systems of Compton-type FELs

Nikolai Yu. Peskov, Edward B. Abubakirov, Andrey V. Arzhannikov, Andrey N. Denisenko, Naum S. Ginzburg, Andrey M. Malkin, Petr V. Kalinin, Evgeny S. Sandalov, Stanislav L. Sinitsky, Vasily D. Stepanov, Vladislav Yu. Zaslavsky

Author Affiliations +

Proceedings Volume 11582, Fourth International Conference on Terahertz and Microwave Radiation: Generation, Detection, and Applications; 1158208 (2020) https://doi.org/10.1117/12.2579567
Event: Fourth International Conference on Terahertz and Microwave Radiation: Generation, Detection, and Applications, 2020, Tomsk, Russian Federation

Abstract

Spatially-extended high-power Cherenkov masers operating in millimeter wavelength band intended for using in powering systems of Compton-type FELs are under development in collaboration of IAP RAS (Nizhny Novgorod) and BINP RAS (Novosibirsk). Electrodynamic systems of such oscillators are based on 2D periodical slow-wave structures realizing 2D distributed feedback mechanism, allowing for provision of stable narrow-band oscillation regime under conditions of substantial oversize. This novel feedback mechanism is examined for the oscillators of different geometry. Project of cylindrical slow-wave oscillator of such type operating at Ka-band with sub-GW power level was elaborated based on the tubular electron beam at the “Sinus-6” accelerator 0.5 MeV / 5 kA / 20 ns (IAP RAS). Prospect for further increase of the radiation power is studied in W-band planar Cherenkov maser driven by large-size sheet electron beam forming by the “ELMI” accelerator 1 MeV / 7 kA / 3 μs (BINP RAS). Design parameters, key components and results of simulations of these oscillators are presented, status and results of their experimental studies are discussed.

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Nikolai Yu. Peskov, Edward B. Abubakirov, Andrey V. Arzhannikov, Andrey N. Denisenko, Naum S. Ginzburg, Andrey M. Malkin, Petr V. Kalinin, Evgeny S. Sandalov, Stanislav L. Sinitsky, Vasily D. Stepanov, and Vladislav Yu. Zaslavsky "Powerful Cherenkov masers with 2D slow-wave structures intended for powering systems of Compton-type FELs", Proc. SPIE 11582, Fourth International Conference on Terahertz and Microwave Radiation: Generation, Detection, and Applications, 1158208 (17 November 2020); https://doi.org/10.1117/12.2579567

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