V. I. Malygin

ORCID: 0000-0003-3975-5809
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About
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Research Areas
  • Gyrotron and Vacuum Electronics Research
  • Particle accelerators and beam dynamics
  • Magnetic confinement fusion research
  • Superconducting Materials and Applications
  • Microwave Engineering and Waveguides
  • Pulsed Power Technology Applications
  • Particle Accelerators and Free-Electron Lasers
  • Ionosphere and magnetosphere dynamics
  • Photonic and Optical Devices
  • Geophysics and Gravity Measurements
  • Solar and Space Plasma Dynamics
  • Fusion materials and technologies
  • Acoustic Wave Resonator Technologies
  • Plasma Diagnostics and Applications
  • Terahertz technology and applications
  • Microwave-Assisted Synthesis and Applications
  • Organophosphorus compounds synthesis
  • Advanced Antenna and Metasurface Technologies
  • Heat Transfer and Boiling Studies
  • Laser-Plasma Interactions and Diagnostics
  • Pesticide Exposure and Toxicity
  • Synthesis and Reactivity of Sulfur-Containing Compounds
  • Coal and Coke Industries Research
  • Advanced Power Generation Technologies
  • Synthesis and Characterization of Heterocyclic Compounds

Institute of Applied Physics
2011-2020

A.M. Obukhov Institute of Atmospheric Physics
2010-2011

Nizhny Novgorod Commercial Institute
2008

Russian Academy of Sciences
1992-2006

Institute of Physiologically Active Compounds
2003

Max Planck Institute for Plasma Physics
1993

Radiophysical Research Institute
1985

A 263 GHz continuous-wave (CW) gyrotron was developed at the IAP RAS for future applications as a microwave power source in Dynamic Nuclear Polarization / magnetic resonance (DNP/NMR) spectrometers. new experimental facility with computerized control built to test this and subsequent gyrotrons. We obtained maximum CW up 1 kW 15 kV/0.4 operation regime. The about 10 W, which is sufficient many spectroscopic applications, realized low current 14 kV/0.02 possibility of frequency tuning by...

10.1063/1.4921322 article EN Review of Scientific Instruments 2015-05-01

Abstract A 110 GHz 1 MW pulse gyrotron has been elaborated. built-in electrodynamic duct consisting of a new type quasi-optical converter and three matching mirrors transforms operating mode TE15,4 into gaussian beam going through the output window. The efficiency (ratio power outside to total microwave at cavity) is about 95%. system an outer mirror transmission line proved have measured by calorimeter end electron beam) more than 40%.

10.1080/00207219208925634 article EN International Journal of Electronics 1992-05-01

In W 7-AS the H mode has been observed for first time in a currentless stellarator plasma. modes are achieved with 0.4 MW electron cyclotron resonance heating at 140 GHz high density. The phases display all characteristics known from tokamak including edge localized (ELMs). achievement of shear-free without toroidal current consequences on H-mode transition and ELM theories.

10.1103/physrevlett.70.2086 article EN Physical Review Letters 1993-04-05

This paper summarizes the results of experiments on electron cyclotron resonance heating (ECRH) plasma obtained at axially symmetric magnetic mirror device gas dynamic trap (GDT) (Budker Institute, Novosibirsk). The main achievement is demonstration discharges with extremely high temperatures bulk electrons. According to Thomson scattering measurements, on-axis temperature averaged over several sequential shots 660 ± 50 eV peak values exceeding 900 in a few shots. corresponds an least...

10.1088/0029-5515/55/5/053009 article EN Nuclear Fusion 2015-04-16

The design of a 1.5-MW, 140-GHz, TE-/sub 28,16/-coaxial cavity gyrotron is presented and results experimental operation are given. A with cylindrical outer wall radially tapered inner rod longitudinal corrugations was used. maximum output power 1.17 MW has been measured in the mode an efficiency 27.2%. Single-mode found over wide range operating parameters. values agree well multimode calculations. Frequency-step tuning performed between 115.6 164.2 GHz. In particular, 0.9 ben TE/sub 25,14/...

10.1109/27.597261 article EN IEEE Transactions on Plasma Science 1997-06-01

Physics aspects of a new system for electron cyclotron resonance heating (ECRH) at the magnetic mirror device Gas Dynamic Trap (GDT, Budker Institute, Novosibirsk) are discussed. This based on two 400 kW/54.5 GHz gyrotrons is aimed increasing temperature up to range 250–350 eV improved energy confinement hot ions. The key physical issue GDT field topology that conventional ECRH geometries not accessible. proposed solution peculiar effect radiation trapping in inhomogeneous magnetized plasma....

10.1063/1.4717757 article EN Physics of Plasmas 2012-05-01

Physics and engineering aspects of a system for electron cyclotron resonance heating (ECRH) at the magnetic mirror device Gas Dynamic Trap (GDT, Budker Institute, Novosibirsk) are presented. This based on two 450 kW/54.5 GHz gyrotrons is aimed increasing temperature up to range 250-350 eV improved energy confinement hot ions. The basic physical issue GDT field topology that conventional ECRH geometries not accessible. proposed solution peculiar effect radiation trapping in inhomogeneous...

10.13182/fst13-a16871 article EN Fusion Science & Technology 2013-05-01

10.1007/bf01014682 article EN International Journal of Infrared and Millimeter Waves 1991-11-01

The paper presents development status of a gyrotron setup for ITER. Twenty four such setups are to be used heating and current drive in ITER plasma. includes superconducting magnet several tens other components. Recently the main required parameters were demonstrated. In last year tests confirmed 95% reliability operation. Now prototype complete is assembled it under thorough testing.

10.1109/irmmw-thz.2015.7327497 article EN 2022 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz) 2015-08-01

This contribution deals with H-modes significant heat exchange between electrons and ions, but which can still show large differences electron ion-temperatures especially inside half minor radius. These conditions are referred to as moderately collisional. A systematic study shows that an increasing fraction of heating increases the transport in ion channel mainly due dependence ITG dominated on ratio Te/Ti agreement modeling. The rotational shear plasmas under was so small it hardly...

10.1051/epjconf/20158702004 article EN cc-by EPJ Web of Conferences 2015-01-01

Recent test results of newly designed 1.5-1.7 MW/170 GHz gyrotron which is considered as a possible RF source for the ITER program are presented.

10.1109/irmmw-thz.2013.6665557 article EN 2022 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz) 2013-09-01

The industrial production prototype of the ITER gyrotron was tested at new test stand in Kurchatov institute with power 1.02 MW 240 second pulses, and 0.8MW 800 pulses. Simultaneously IAP a short pulse an increased size cavity 1.5-2 MW.

10.1109/icimw.2010.5612580 article EN 2010-09-01

GYCOM in collaboration with Institute of Applied Physics (IAP) designed, fabricated and tested two different gyrotrons similar to ITER parameters at 105 – 140 GHz frequency range. Set gyrotron system beside the tube includes matching optic unit (MOU) elements evacuated transmission lines. One was installed operates plasma machines EAST / ASIPP China, another is delivered KSTAR NFRI Korea.

10.1051/epjconf/201714704003 article EN cc-by EPJ Web of Conferences 2017-01-01

During last years several new gyrotrons were developed at IAP/GYCOM. The main ITER requirements to a gyrotron have been demonstrated: 170 GHz frequency, 1MW power, 1000 seconds pulse duration, 53% efficiency. For multi-frequency novel scheme for tunable window was developed. Additionally some other running plasma installations. New directions in the development are studied: elaboration of high frequencies (~300GHz) and investigation possibility realize oscillations locking by means external signal.

10.1109/irmmw-thz.2014.6956450 article EN 2022 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz) 2014-09-01

Development of the gyrotron system for ITER is based on solution many very difficult scientific and engineering problems. At present main purpose modification an enhancement reliability implementation all systems into machine its control safety system. Recently development in Russia came completion phase.

10.1109/irmmw-thz.2016.7758426 article EN 2016-09-01

The industrial production prototype of the ITER gyrotron was tested at new test stand in Kurchatov institute with power 1 MW 500 second pulses, and 0.9MW 1000 pulses. Operation reliability long pulses output modulation characteristics also were studied. Last year one more fabricated its testing began. Simultaneously IAP a short pulse an increased size cavity 1.5-2 MW. In version 1.2 duration 100 registered.

10.1109/irmmw-thz.2011.6104899 article EN International Conference on Infrared, Millimeter, and Terahertz Waves 2011-10-01
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