Search Results - "Zotova, V I"

Generation of Rogue Waves in Gyrotrons Operating in the Regime of Developed Turbulence by Ginzburg, N S, Rozental, R M, Sergeev, A S, Fedotov, A E, Zotova, I V, Tarakanov, V P

“…Within the framework of the average approach and direct 3D PIC (particle-in-cell) simulations, we demonstrate that the gyrotrons operating in the regime of…”
Get full text

Generation of Subterahertz Superradiance Pulses Based on Excitation of a Surface Wave by Relativistic Electron Bunches Moving in Oversized Corrugated Waveguides by Ginzburg, N S, Malkin, A M, Sergeev, A S, Zheleznov, I V, Zotova, I V, Zaslavsky, V Yu, Boltachev, G Sh, Sharypov, K A, Shunailov, S A, Ul'masculov, M R, Yalandin, M I

“…The first experiments on the observation of short pulsed superradiant (SR) emission with the excitation of a surface wave by a relativistic electron bunch…”
Get full text

Generation of intense spatially coherent superradiant pulses in strongly oversized 2D periodical surface-wave structure by Ginzburg, N. S., Zaslavsky, V. Yu, Malkin, A. M., Sergeev, A. S., Zotova, I. V., Sharypov, K. A., Shunailov, S. A., Shpak, V. G., Ul'masculov, M. R., Yalandin, M. I.

“…We present the results of experiments on generation of high-power superradiant (SR) pulses by an extended electron bunch moving in a cylindrical surface-wave…”
Get full text

Phase-Imposing Initiation of Cherenkov Superradiance Emission by an Ultrashort-Seed Microwave Pulse by Mesyats, G A, Ginzburg, N S, Golovanov, A A, Denisov, G G, Romanchenko, I V, Rostov, V V, Sharypov, K A, Shpak, V G, Shunailov, S A, Ulmaskulov, M R, Yalandin, M I, Zotova, I V

“…For the first time, we demonstrate experimentally the possibility of Cherenkov superradiant generation with a phase imposed by an ultrashort seed microwave…”
Get full text

Generation of electromagnetic fields of extremely high intensity by coherent summation of Cherenkov superradiance pulses by Ginzburg, N S, Cross, A W, Golovanov, A A, Mesyats, G A, Pedos, M S, Phelps, A D R, Romanchenko, I V, Rostov, V V, Rukin, S N, Sharypov, K A, Shpak, V G, Shunailov, S A, Ulmaskulov, M R, Yalandin, M I, Zotova, I V

“…We demonstrate both theoretically and experimentally the possibility of correlating the phase of a Cherenkov superradiance (SR) pulse to the sharp edge of a…”
Get full text

Demonstration of high-gradient electron acceleration driven by subnanosecond pulses of Ka-band superradiance by Ginzburg, N. S., Fedotov, A. E., Kuzikov, S. V., Sharypov, K. A., Shpak, V. G., Shunailov, S. A., Vikharev, A. A., Yalandin, M. I., Zotova, I. V.

“…We report the high-gradient acceleration of electrons driven by a subnanosecond pulse of Ka-band Cherenkov superradiance (SR). The experiments are carried out…”
Get full text

Conversion of an electromagnetic wave into a periodic train of solitons under cyclotron resonance interaction with a backward beam of unexcited electron-oscillators by Zotova, I V, Ginzburg, N S, Sergeev, A S, Kocharovskaya, E R, Zaslavsky, V Yu

“…The possibility of the conversion of intense continuous microwave radiation into a periodic train of short pulses by means of resonant interaction with a beam…”
Get full text

Generation of Ultrashort Microwave Pulses in Passive Mode-Locked Electron Oscillators with Homogeneous and Inhomogeneous Line Broadening by Vilkov, M. N., Ginzburg, N. S., Zotova, I. V., Sergeev, A. S.

Get full text

Frequency Tunable sub-THz Gyrotrons for Spectroscopy Applications by Fedotov, A. E., Zotova, I. V., Glyavin, M. Yu, Rozental, R. M., Zuev, A. S., Ginzburg, N. S., Sergeev, A. S., Idehara, T.

Get full text

Concept of Dual-Frequency Double-Beam Gyrotron for Plasma Applications by Zheleznov, I. V., Zaslavsky, Vladislav Yu, Zotova, I. V., Sergeev, A. S., Manuilov, V. N., Glyavin, M. Yu

“…We develop a concept of a high-power dual-frequency CW radiation source based on a gyrotron with two co-axis electron beams which independently excite…”
Get full text

Concept of Gyrotron Complexes With Serial Phase and Frequency Locking by Rozental, R. M., Zotova, I. V., Sergeev, A. S., Ginzburg, N. S., Denisov, G. G.

“…For the development of complexes of coherently operating gyrotrons, we propose a scheme with serial connection when the generation frequency and phase of each…”
Get full text

Development of Higher Efficiency MW-Power 230-GHz Gyrotron With Nonadiabatic Electron Gun by Glyavin, M. Yu, Goldenberg, A. L., Krupin, D. S., Leshcheva, K. A., Malkin, A. N., Manuilov, V. N., Mocheneva, O. S., Sergeev, A. S., Zotova, I. V., Zheleznov, I. V.

“…We study the possibility of implementing a higher efficiency gyrotron intended for plasma heating in advanced nuclear fusion facilities. To increase the…”
Get full text

Non-adiabatic Non-axisymmetric Electron-Optic Systems for Multi-mirror and Multi-barrel Gyrotrons by Goldenberg, A. L., Glyavin, M. Yu, Leshcheva, K. A., Manuilov, V. N., Zotova, I. V.

“…The possibility of forming helical electron beams (HEBs) for multi-mirror and multi-barrel gyrotrons using systems with non-adiabatic injection of an electron…”
Get full text

Tunable Multi-Frequency Radiation Source Based on Gyrotron With Pre-Modulated Beam by Guznov, Yu. M., Leontyev, A. N., Rozental, R. M., Sergeev, A. S., Zotova, I. V., Ginzburg, N. S.

“…We propose a multi-frequency radiation source based on a gyrotron which is driven by a pre-modulated electron beam. Modulation occurs in an additional cavity…”
Get full text

Powerful terahertz free electron lasers with hybrid Bragg reflectors by Ginzburg, N. S., Malkin, A. M., Peskov, N. Yu, Sergeev, A. S., Zaslavsky, V. Yu, Zotova, I. V.

“…For the electron devices with oversized interaction space, the Bragg structures of different types are effective instruments for controlling and redistribution…”
Get full text

Phase-Locking of Second-Harmonic Gyrotrons for Providing MW-Level Output Power by Denisov, G. G., Zotova, I. V., Zheleznov, I. V., Malkin, A. M., Ginzburg, N. S., Sergeev, A. S., Semenov, E. S., Glyavin, M. Yu

“…We propose the method of providing megawatt (MW)-level output power in continuous wave (CW) or long-pulse second-harmonic (SH) gyrotrons using phase-locking by…”
Get full text

Generation of Chaotic Terahertz-band Radiation Based on Frequency Multiplication in Gyrotrons by Rozental, R. M., Ginzburg, N. S., Malkin, A. M., Sergeev, A. S., Zotova, I. V.

“…We consider the possibilities of producing wideband chaotic terahertz-range radiation in gyrotrons with excitation of cyclotron harmonics. The transition to…”
Get full text

Theoretical and Experimental Investigations of Terahertz-Range Gyrotrons with Frequency and Spectrum Control by Denisov, G. G., Glyavin, M. Y., Fedotov, A. E., Zotova, I. V.

“…We present the results of recent IAP RAS investigations, which were aimed at controlling the radiation frequency and spectrum of THz-range medium-power…”
Get full text

Radiolytic Inactivation of Ponceau 4R Mutagenicity in Aqueous Solution by Ponomarev, A. V., Kholodkova, E. M., Zotova, I. V., Shumega, A. R., Stepchenkova, E. I.

“…The electron-beam treatment of an aqueous solution of the azo dye Ponceau 4R (0.02 g/dm 3 ) at a dose of 1.5 kGy in air led to the complete elimination of…”
Get full text

Frequency Tunable sub-THz Gyrotron for Direct Measurements of Positronium Hyperfine Structure by Fedotov, A. E., Rozental, R. M., Zotova, I. V., Ginzburg, N. S., Sergeev, A. S., Tarakanov, V. P., Glyavin, M. Yu, Idehara, T.

“…The feasibility of a high-power sub-THz gyrotron with smooth wideband frequency tuning suitable for direct measurement of the positronium hyperfine structure…”
Get full text