Abstract-Energy Spectra of Electron Beams and the Possibility of Double-Stage Energy Recuperation in a Double-Beam Terahertz Gyrotron

M. Yu. Glyavin, V. Yu. Zaslavsky, I. V. Zotova, V. N. Manuilov, A. P. Fokin,

https://link.springer.com/article/10.1007/s11141-019-09981-y

We study theoretically the possibilities of double-stage energy recuperation in a double-beam terahertz gyrotron. Numerical modeling, which was performed for a gyrotron producing radiation with a frequency of 0.78 THz and operating at the second cyclotron-frequency harmonic at the TE8.5 mode, demonstrates the possibility of spatial and energy separation of electron beams. This makes it possible to implement a double-stage recuperation scheme. The found energy spectra of electrons suggest an increase in the gyrotron efficiency by 3.5–4 times.

Abstract- Gas breakdown and dynamics of the discharge maintained by a powerful terahertz-band radiation

 A.V. Sidorov, S.V. Razin, S.V. Golubev,  A.P. Fokin,  A.P. Veselov,  D.S. Sidorov,   A.G. Luchinin,   A.V. Vodopyanov, M. Yu. Glyavin,

http://ieeexplore.ieee.org/document/8066853/

Results of the experimental investigation of the gas discharge in the beams of the powerful terahertz radiation are presented. Study of the self-sustained and initiated discharges by using the radiation of pulsed gyrotron (developed in IAP RAS) with frequency value of 40kW@0.67 THz (20 μs pulse length) was made in the wide range of pressures (3·10-3-1500 Torr) in different gases (argon, krypton, xenon, nitrogen).