A5064840931- Gyrotron and Vacuum Electronics Research
- Iron and Steelmaking Processes
- Mining and Gasification Technologies
- Nutrition, Genetics, and Disease
- Microwave Engineering and Waveguides
- Engineering and Environmental Studies
- Cancer, Lipids, and Metabolism
- Pulsed Power Technology Applications
- Terahertz technology and applications
- Diet, Metabolism, and Disease
- Coal and Coke Industries Research
- Metal Extraction and Bioleaching
- Metallurgical Processes and Thermodynamics
- Fatty Acid Research and Health
- Particle accelerators and beam dynamics
- Diverse Industrial Engineering Technologies
- Lipoproteins and Cardiovascular Health
- Nonlinear Dynamics and Pattern Formation
- Adipose Tissue and Metabolism
- Hormonal Regulation and Hypertension
- Metabolomics and Mass Spectrometry Studies
- Diet and metabolism studies
- Particle Accelerators and Free-Electron Lasers
- Sociopolitical Dynamics in Russia
- Atherosclerosis and Cardiovascular Diseases
Institute of Radio-Engineering and Electronics
2020-2024
Saratov State University
2008-2024
Institute of Physics
2022-2024
Lipetsk State Technical University
2014-2023
The Russian Presidential Academy of National Economy and Public Administration
2018-2023
A. N. Kosygin Moscow State Textile University
2023
National Medical Research Center of Cardiology
1996-2021
Lipetsk State Pedagogical University
2021
Saint Petersburg State Electrotechnical University
2015-2019
Ministry of Health
2014-2019
For advanced telecommunications and radar systems, high-power miniaturized millimeter-band traveling-wave tubes (TWTs) are required. In this letter, we propose a meander-line slow-wave structure (SWS) that is suitable for multiple sheet beam interaction helps achieve high power. The simulation of cold electromagnetic parameters the V-band SWS demonstrates good transmission characteristics, wide bandwidth, impedance. Hot performance TWT amplifier with proposed also studied. 3-D...
This article presents the results of a design study an electron-optic system (EOS) for sheet-beam G-band traveling-wave tube. An electron gun providing 0.1-A, 20-kV sheet beam emitted by 0.8 mm × curved cylindrical cathode is designed. The dimensions at waist position are 0.05 with compression ratio 16 in vertical direction. A magnetic 1.1 T field, which nearly seven times higher than Brillouin designed, and transmission 0.1 0.85 tunnel studied 3-D particle-in-cell (PIC) simulation. It...
The alignment within the required tolerance between components like electron beam source, beam-wave interaction structure and spent collector is a major challenge in realization of high-power vacuum-tube sub-THz source. To overcome this issue, novel integrated W-band circuit along with adapter region has been designed developed on two planar metallic plates itself for first time. It accomplished level different This single plate. These structures have using optimized micro-milling techniques...
The application of chaos in communications and radar offers new interesting possibilities. This article describes investigations on the generation a traveling wave tube (TWT) amplifier experimental parameters responsible for sustaining stable chaos. Chaos is generated TWT when it made to operate highly nonlinear regime by recirculating fraction output power back input delayed feedback configuration. A driver provides constant external force system making behave like forced oscillator....
A nonstationary nonlinear model for numerical simulation of a coupled-cavity traveling-wave tube is described. The based on the discrete theory excitation periodic waveguide structure, when it supposed that beam-wave interaction takes place only inside cavity gaps separated by drift spaces. Such an approach allows one to consider properly dispersion slow-wave structure (SWS) and simulate processes at any point SWS passband, including near cutoff even beyond passband. Results simulations...
In this article, the design approach for a V-band miniaturized oscillator with pseudospark-based high-current-density sheet electron beam source is presented. The hollow cathode gun has been designed and developed. experiment, ~10-A current in hollow-cathode phase measured. high-frequency structure comprised of truncated sine waveguide slow wave (TSW SWS) wideband-matched output couplers designed, optimized, simulated. simulations show good transmission characteristics structure. operation...
Folded waveguide traveling-wave tubes (FW TWT) are among the most promising candidates for powerful compact amplifiers and oscillators in millimeter submillimeter wave bands. In this paper, nonstationary behavior of a FW TWT oscillator with delayed feedback is investigated. Starting conditions oscillations derived analytically. Results numerical simulation single-frequency, self-modulation (multifrequency) chaotic generation regimes presented. Mode competition phenomena, multistability...
For a relativistic backward-wave oscillator (RBWO), various nonstationary phenomena, such as irregular transients, mode competition, self-modulation, and chaos, are typical. Phase locking by injection of the external signal helps to minimize transient times stabilize single-frequency regime operation. In this paper, phase an RBWO with end reflections is considered. The results time-domain numerical modeling presented, which reveal intricate pattern phase-locked particular, possibility rapid...
On the basis of phylogenetic theory general pathology, cause a noninfectious disease whose occurrence in population is more than 5–7% an impaired biological function or reaction to environment. From biology viewpoint, high mortality rate related cardio-vascular diseases and atherosclerosis (intercellular deficiency polyenic fatty acids (PFA)) just extinction Homo sapiens upon adaptation new environmental factors. The throphology (feeding) exotrophy (external feeding) are several aspects,...
In extreme ultraviolet lithography (EUVL) environments both laser produced plasma (LPP) and gas discharge (GDPP) configurations face serious issues regarding components lifetime performance under particle bombardment, in particular collector mirrors. For debris, fast ions, neutrals, condensable EUV radiator fuels (Li, Sn) can affect addition, mirrors are exposed to impurities (H,C,O,N), off-band radiation (depositing heat) highly-charged ions leading their degradation consequently limiting...
EUV metallic light radiators such as Sn or Li used for lithography will limit the lifetime of collector optics in source devices by both contamination and irradiation. Generation requires use hot, dense plasma. Pinch dynamics generates fast ions atoms, sources (Sn, Li) with energies ranging from 100 eV up to several keV. The expanding plasma thermalize condense nearby components, including debris shield optics. incident distribution onto likely include ions. lead two different mechanisms....
The effect of energetic xenon ion bombardment on the extreme ultraviolet (EUV) reflectivity performance mirrors is vital importance for discharge- and laser-produced plasma lithography sources. To study these effects, we measured absolute relative reflectivities at National Institute Standards Technology Interaction Materials with Particles Components Testing facility to quantify effects singly ionized Xe Ru EUV collector mirrors. Results show that unity sputtering reached Xe+ energies near...
Survey data on types and levels of trust in Russian society show that Russia has not achieved the situation typically found modernized societies. Trust institutions, especially state, is low, civil involvement low. This been influenced by fact development was imposed from above, did grow organically out social relations within general population.
The silicon carbide field emission array of microtips on the tops micropedestals fabricated original technology was embedded as cathode in planar vacuum diode and its CVC characterized. electron beams formed by cathodes with various dimensions numerically simulated. results demonstrate significant influence micropedestal current acceptable angular velocity spread.
Metabolic syndrome (overeating) is a phylogenetically-determined sequence of symptoms with the same pathogenesis. There only one etiological factor, namely, increased consumption physiologically optimal food. Enterocytes and omentum fat cells are phylogenetically paracrine-regulated cell community that realizes biological reactions exo- endotrophy. Visceral obesity, high level unesterified fatty acids (FA), formation pool micellar FA in blood, integration these into endothelial plasma...