V. B. Reva

Budker Institute of Nuclear Physics

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Co-Authors

Maxim Bryzgunov

Budker Institute of Nuclear Physics

V. V. Parkhomchuk

Budker Institute of Nuclear Physics

Alexander Bubley

Budker Institute of Nuclear Physics

V. M. Panasyuk

Budker Institute of Nuclear Physics

Alexander Putmakov

Budker Institute of Nuclear Physics

A. D. Goncharov

Budker Institute of Nuclear Physics

Andrey Denisov

Budker Institute of Nuclear Physics

Vasily Parkhomchuk

Budker Institute of Nuclear Physics

V.V. Parkhomchuk

Budker Institute of Nuclear Physics

V. V. Parkhomchuk

Budker Institute of Nuclear Physics

Cooperative Institutions

Budker Institute of Nuclear Physics

172

Brookhaven National Laboratory

103

Siberian Branch of the Russian Academy of Sciences

Russian Academy of Sciences

RIKEN BNL Research Center

Novosibirsk State University

Chinese Academy of Sciences

National Library of Luxembourg

Institute of Modern Physics

Joint Institute for Nuclear Research

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Design of the 2.5 MV Electron Cooling System and the Potential for Increasing NICA Collider Luminosity

Physics of Particles and Nuclei Letters (2018)

V. V. Parkhomchuk Maxim Bryzgunov Alexander Bubley A. D. Goncharov Andrey Denisov

Electron cooling

10.1134/s1547477118070567

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Citations (1)

Experimental Observation of Longitudinal Electron Cooling of DC and Bunched Proton Beam at 2425 MeV/c at COSY

V. B. Reva Maxim Bryzgunov V. Kamerdzhiev Takeshi Katayama Vasily Parkhomchuk

Electron cooling

10.18429/jacow-cool2015-moxaud02

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COMMISSIONING COSY COOLER WITH ELECTRON BEAM AT NOVOSIBIRSK

V. B. Reva T. V. Bedareva Vladimir Chekavinskiy V. G. Cheskidov B. A. Dovzhenko

The electron cooler of a 2 MEV for COSY storage ring FZJ is assembled in BINP [1]. Results of experiments with high voltage, with electron beam, cascade transformer for distribution power along acceleration tube will be discussed in this report. The COSY cooler is designed on the classic scheme of low energy coolers like cooler CSRm, CSRe, LEIR that was produced in BINP before. The electron beam is transported inside the longitudinal magnetic field along whole trajectory from an electron gun to a collector. This optic scheme is stimulated by the wide range of the working energies 0.025÷2 MeV. The electrostatic accelerator consists of 33 individual unify section. Each section contains two HV power supply (plus/minus 30 kV) and power supply of the magnetic coils. The electrical power to each section is provided by the cascade transformer. The cascade transformer is the set of the transformers connected in series with isolating winding.

Electron cooling

Acceleration voltage

Source

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Citations (3)

Investigation of Magnetic Oscillation of Turbulent Plasma Flow in Mirror Traps

Fusion Technology (1999)

Vladimir G. Sokolov S. A. Beher A. A. Kabant︠s︡ev V. B. Reva

On the installations AMBAL-M and MAL in turbulent plasma column the longitudinal current of some kiloampers was measured. The fluctuation spectrum of magnetic field was measured by azimuthal magnetic probes and expansion of plasma current by spatial modes was carried out.According to the experimental data the amplitudes of currents In, sizes Rn and shifts from axis of simmetry ΔRn for 3rd (40kHz) and 5th (72kHz) basic modes were calculated.

Oscillation (cell signaling)

Upper hybrid oscillation

10.13182/fst99-a11963894

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Quasisteady arc-discharge source of high temperature plasma flows for plasma deposition applications

A. A. Kabant︠s︡ev V. B. Reva Vladimir G. Sokolov

The hot plasma sources generating quasi-steady large-diameter flows of working substances with specific power of some tens kW/cm{sup 2} and ion energy of some hundreds eV are of great interest for various material science and technology applications: to plasma deposition of a silicon and diamond films, to ultrahard coating and plasma-induced modification of surface and etc. This paper presents the basic design of such plasma source and some results of experimental researches of its electric characteristics and obtained plasma parameters. In consequence of some optimization of operating mode the flow of high-temperature plasma with T{sub e} {approx_equal} 30 {divided_by} 50 eV, T{sub i} {approx_equal} 200 eV and density n {approx_equal} 5 {sm_bullet} 10{sup 13} cm{sup -3} was obtained.

Deposition

Source

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High-voltage electron cooler systems in ion–ion colliders

Physics of Particles and Nuclei Letters (2016)

V. V. Parkhomchuk V. B. Reva

Electron cooling

10.1134/s1547477116070426

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High Efficiency Electron Collector for the High Voltage Electron Cooling System of COSY

Maxim Bryzgunov Alexander Bubley Vladimir Chekavinskiy I. A. Gusev А. А. Иванов

A high efficiency electron collector for the COSY high voltage electron cooling system was developed. The main feature of the collector is usage of special insertion (Wien filter) before the main collector, which deflects secondary electron flux to special secondary collector, preventing them fly to the electrostatic tube. In first tests of the collector in COSY cooler efficiency of recuperation better then 10⁻⁵ was reached. Before assembling of the cooler in Julich upgrades of the collector and electron gun were made. After the upgrade efficiency better then 10-6 was reached. Design and testing results of the collector are described.

Upgrade

High Voltage

Electron gun

Secondary electrons

10.18429/jacow-cool2015-tupf08

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Citations (2)

Measuring a hollow electron beam profile

Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment (2004)

Alexander Bubley V. M. Panasyuk V. V. Parkhomchuk V. B. Reva

Test bench

10.1016/j.nima.2004.06.074

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Citations (7)

Determination of Transfer Function of Controlled Object by Characteristic of Closed-Loop Control with Feedback

Siberian Journal of Physics (2008)

Maxim Bryzgunov Anatoliy D. Goncharov V. B. Reva Dmitriy N. Skorobogatov

The method for determination on transfer function of a system by its response to well-known input signal is proposed. The possibility of determination of transfer function of controlled object by transfer function of closed-loop control without disconnection of feedback is shown experimentally. The method for reduction of order of linear model of transfer function is proposed.

Closed-loop transfer function

Closed-loop pole

SIGNAL (programming language)

Feedback Control

Feedback loop

10.54362/1818-7919-2008-3-3-104-113

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Dielectronic recombination experiment of P-like Tin on HIRFL-CSRm at Lanzhou

Journal of Physics Conference Series (2014)

Wei-Qing Xu X. Ma W.Q. Wen X L Zhu Yuan Gao

Total recombination rate coefficients of 112Sn35+ ions have been firstly measured by employing the electron-ion merged-beams technique on the main cooler storage ring at Lanzhou. Using an electron beam energy detuning system, we precisely tuned the relative energies from 0 to 6.0 eV between the electron beam and the ion beam (momentum spread Δp/p ~ 5 × 10−4). A multi-configuration Breit-Pauli calculation utilizing kappa-averaged relativistic orbitals has been carried-out for the recombination rate coefficients. We find that there are obvious differences between the experimental total rate coefficients and the theoretical calculations.

Beam energy

10.1088/1742-6596/488/1/012055

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Citations (1)