Planar sub-THz / sub-GW Cherenkov masers with two-dimensional distributed feedback based on the “ELMI” accelerator: current implementation tasks

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Abstract

Development of powerful spatially extended Cherenkov masers of planar geometry is currently in progress in collaboration between BINP RAS (Novosibirsk) and IAP RAS (Nizhny Novgorod) based on the “ELMI” accelerator 1 MeV / 5–7 kA / 3 µs. To ensure the radiation coherence in conditions of substantial oversize of the interaction space, these projects use a two-dimensional distributed feedback mechanism, which is implemented in 2D-periodic slow-wave structures. The paper presents the results of simulations and optimization aimed at the output power enhancement and increasing the stability of the narrow-band generation regime in the developed relativistic masers. The current stage of their experimental implementation is discussed.

About the authors

N. Yu. Peskov

Budker Institute of Nuclear Physics of the Siberian Branch of the Russian Academy of Sciences; Federal Research Center A.V. Gaponov-Grekhov Institute of Applied Physics of the Russian Academy of Sciences

Email: peskov@ipfran.ru
Novosibirsk, Russia; Nizhny Novgorod, Russia

V. Yu. Zaslavsky

Budker Institute of Nuclear Physics of the Siberian Branch of the Russian Academy of Sciences; Federal Research Center A.V. Gaponov-Grekhov Institute of Applied Physics of the Russian Academy of Sciences

Novosibirsk, Russia; Nizhny Novgorod, Russia

A. V. Arzhannikov

Budker Institute of Nuclear Physics of the Siberian Branch of the Russian Academy of Sciences

Novosibirsk, Russia

N. S. Ginzburg

Federal Research Center A.V. Gaponov-Grekhov Institute of Applied Physics of the Russian Academy of Sciences

Nizhny Novgorod, Russia

P. V. Kalinin

Budker Institute of Nuclear Physics of the Siberian Branch of the Russian Academy of Sciences

Novosibirsk, Russia

E. S. Sandalov

Budker Institute of Nuclear Physics of the Siberian Branch of the Russian Academy of Sciences

Novosibirsk, Russia

A. S. Sergeev

Federal Research Center A.V. Gaponov-Grekhov Institute of Applied Physics of the Russian Academy of Sciences

Nizhny Novgorod, Russia

S. L. Sinitsky

Budker Institute of Nuclear Physics of the Siberian Branch of the Russian Academy of Sciences

Novosibirsk, Russia

V. D. Stepanov

Budker Institute of Nuclear Physics of the Siberian Branch of the Russian Academy of Sciences

Novosibirsk, Russia

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