Search Results - "Fedotov, A. E"

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…”
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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…”
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Helical undulator based on partial redistribution of uniform magnetic field by Balal, N., Bandurkin, I. V., Bratman, V. L., Fedotov, A. E.

“…A new type of helical undulator based on redistribution of magnetic field of a solenoid by ferromagnetic helix has been proposed and studied both in theory and…”
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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.

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Chaos and Hyperchaos in a Ka-Band Gyrotron by Fedotov, A. E., Rozental, R. M., Isaeva, O. B., Rozhnev, A. G.

“…We present the first experimental proof of hyperchaotic regimes in a gyrotron. Based on experimental data analysis, we calculate the spectrum of Lyapunov…”
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Relativistic Sub-THz Surface-Wave Sheet-Beam Amplifier With Transverse Energy Input and Output by Ginzburg, N. S., Malkin, A. M., Zaslavsky, V. Yu, Fedotov, A. E., Sergeev, A. S.

“…We propose a high-power extended interaction klystron (EIK) amplifier exploiting open gratings as surface-wave cavities driven by a relativistic high-current…”
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Relativistic Sub-THz Surface-Wave Oscillators With Transverse Gaussian-Like Radiation Output by Malkin, A. M., Fedotov, A. E., Zaslavsky, V. Yu, Fil'chenkov, S. E., Sergeev, A. S., Egorova, E. D., Ginzburg, N. S.

“…Surface-wave oscillators driven by intense relativistic sheet electron beams can produce sub-terahertz waves at sub-gigawatt level of output power; however,…”
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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…”
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Numerical Study of a Low-Voltage Gyrotron ("Gyrotrino") for DNP/NMR Spectroscopy by Bratman, V. L., Fedotov, A. E., Kalynov, Yu K., Makhalov, P. B., Osharin, I. V.

“…Feasibility of a gyrotron for the dynamic nuclear polarization (DNP) purpose, integrated with nuclear magnetic resonance (NMR) spectrometer inside a single…”
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The single phase-to-ground fault location calculation method based on limited information on the distribution of zero-sequence voltages on the tree-structured feeder by Fedotov, A. I., Vagapov, G. V., Abdullazyanov, R. E., Fedotov, E. A.

“…One of the key goals in the overhead power lines at the isolated neutral system 6–10–35 kV is topographic search area limitation for a single phase-to-ground…”
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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…”
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Magnetron-Injection Gun with Increased Current for Frequency Tunable Medium Power Sub-THz Gyrotron by Manuilov, V. N., Fedotov, A. E., Zotova, I. V., Rozental, R. M., Idehara, T., Mitsudo, S., Glyavin, M. Yu

“…A magnetron-injection gun able to provide very high ratio t j ≈ 0.5 of the beam current to the Langmuir current has been designed, while maintaining good…”
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Pulsed Micro-Undulator for Terahertz and X-Ray Free-Electron Lasers by Bandurkin, I. V., Loginov, P. V., Peskov, N. Yu, Savilov, A. V., Fedotov, A. E.

“…We propose and test experimentally the design of a planar micro-undulator, which allows ensuring a simple profile of the undulator parameter with a value of…”
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Diagnostic Significance of the Level of Soluble Stimulating Growth Factor in Patients with Spondyloarthritis as an Early Marker of Cardiovascular Pathology by Dorogoykina, K. D., Safarova, K. N., Fedotov, E. A., Rebrov, A. P.

“…Aim to determine the clinical and laboratory relationships of the level of soluble stimulating growth factor expressed by genome 2 (sST2) with indicators…”
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Serum concentrations of interleukin-6 and tumor necrosis factor alpha in patients with spondyloarthritis: a relationship between systemic inflammation and anemia by Safarova, К. N., Fedotov, E. A., Rebrov, A. P.

“…Aim . To assess the relationship between the activity of systemic inflammation and the hemoglobin level in patients with spondyloarthritis (SpA). Materials and…”
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Design and Testing of the Photogun Resonator and Biperiodic Accelerating Structure with Traveling Wave for the Photoinjector at the IAP RAS by Ashanin, I. A., Bandurkin, I. V., Bylinsky, N. Yu, Vikharev, A. A., Mineev, K. V., Peskov, N. Yu, Polozov, S. M., Samarokov, N. Yu, Fedotov, A. E.

“…We present the results of studies aimed at creation of accelerating structures for a photoinjector accelerator that is currently under construction at the IAP…”
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Terahertz Orotrons and Oromultipliers by Bratman, V. L., Dumesh, B. S., Fedotov, A. E., Makhalov, P. B., Movshevich, B. Z., Rusin, F. S.

“…The capabilities of two types of terahertz sources based on stimulated Smith-Purcell radiation of electrons in open cavities are discussed. A series of…”
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Diagnostic value of N-terminal pro-B-type natriuretic peptide in hemodialysis patients by Sedov, D. S., Fedotov, E. A., Rebrov, A. P.

“…Aim. To assess the diagnostic value of N-terminal pro-B-type natriuretic peptide (NT-proBNP) in hemodialysis (HD) patients. Material and methods. A total of 80…”
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Circadian rhythms of thyroid hormones in patients with ischemic heart disease, arterial hypertension, and atrial fibrillation by Tsareva, Yu O, Mayskova, E A, Fedotov, E A, Shvarts, Yu G

“…To evaluate the interrelationship between diurnal changes in thyrotropic hormone (TTH), free triiodothyronine (FT3), and clinical features of IHD in…”
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Imaging of spatial distributions of the millimeter wave intensity by using the Visible Continuum Radiation from a discharge in a Cs–Xe mixture. Part II: Demonstration of application capabilities of the technique by Gitlin, M. S., Glyavin, M. Yu, Fedotov, A. E., Tsvetkov, A. I.

“…The paper presents the second part of the review on a high-sensitive technique for time-resolved imaging and measurements of the 2D intensity profiles of…”
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