A.I. Balabin

Moscow Automobile and Road Construction State Technical University

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G. N. Kropachev

Kurchatov Institute

T. V. Kulevoy

Kurchatov Institute

A. A. Kolomiets

Institute for Nuclear Research

I.O. Parshin

Institute for Theoretical and Experimental Physics

Alexey Mamaev

Moscow Polytechnic University

M. Yu. Karelina

State University of Management

F. Marti

Michigan State University

V. I. Pershin

University of Toronto

S. B. Ugarov

Institute for Theoretical and Experimental Physics

D.G. Skachkov

Institute for Theoretical and Experimental Physics

Cooperative Institutions

Institute for Theoretical and Experimental Physics

Kurchatov Institute

Moscow Engineering Physics Institute

Joint Institute for Nuclear Research

Michigan State University

Brookhaven National Laboratory

National Superconducting Cyclotron Laboratory

Institute of High Current Electronics

State Research Institute for Chemistry and Technology of Organoelement Compounds

Facility for Rare Isotope Beams

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Simulations of Solenoid and Electrostatic Quadrupole Focusing of High Intensity Beams from ECR Ion Source

Proceedings of the 2003 Particle Accelerator Conference (2006)

Quantang Zhao A.I. Balabin M. Doléans F. Marti J. Stetson

Because of its axisymmetric property and reasonable effectiveness, solenoids have been widely used to focus beams at various injectors. For a multi-component beam with solenoidal focusing, beam quality can be significantly deteriorated due to the magnetic focusing strength dependence on the beam charge-to-mass ratio. Electrostatic quadrupole focusing has been explored as an alternative option at the National Superconducting Cyclotron Laboratory (NSCL) for the injection line of the superconducting cyclotrons. We present the results of simulations for both systems.

Solenoid

Quadrupole magnet

10.1109/pac.2005.1590753

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On the possibility of simultaneous acceleration of ions with different charge to mass ratio in a RFQ

Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment (1994)

A.I. Balabin

Mass ratio

10.1016/0168-9002(94)90835-4

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The effects of Coulomb beam interaction in multiaperture linac

A.I. Balabin G. N. Kropachev I.O. Parshin D.G. Skachkov

In a multiaperture linac the Coulomb coherent beam oscillations are excited and thus stimulate particle losses. To analyse the coherent oscillations a model is proposed, in which the Coulomb fields of the surrounded beams in relation to the considered bunch train are approximated by the fields of uniformly charged threads. The low order mode equations are derived by linearization of the Coulomb and external fields. Beam interaction effects in the multiaperture alternating phase focused linac are studied. The dipole mode is shown to influence mainly the beam dynamics in this linac, and the increase of bunch size by quadrupole modes is negligible.< >

10.1109/pac.1993.309755

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RECONSTRUCTION OF LIGHT AND POLARIZED ION BEAM INJECTION SYSTEM OF JINR NUCLOTRON-NICA ACCELERATOR COMPLEX

Problems of atomic science and technology. Series, Plasma physics (2013)

V. A. Andreev A.I. Balabin Andrey Butenko Vyacheslav Dyubkov Alexander Govorov

The NICA ion collider project at JINR is under development at present. As a part of the project the Nuclotron in-jector upgrade has been started. The work is provided in cooperation of JINR, MEPhI and ITEP. Up to now the Nu-clotron injection system consist of a number of proton and ion sources, the 650 keV pulsed preinjector and DTL linac LU-20 (Alvarez type). Such system provides injection into Nuclotron of 20 MeV proton and 5 MeV/u (

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Kinematic and force parameters of an elastic wheel when rolling on a flat rigid surface

BIO Web of Conferences (2024)

Alexey Mamaev M. Yu. Karelina A.I. Balabin

The implementation of forces and moments applied to the wheels of a vehicle occurs in the zone of contact of the wheels with the supporting surface, and therefore the analytical determination of their force and kinematic parameters should be based on consideration of the phenomena occurring in contact. One of the directions for solving these problems is based on a technique based on the theory of preliminary displacement of wheel surface elements in the contact zone with the supporting surface and dividing the contact area into adhesion and sliding zones, which makes it possible to take a new approach to the consideration of wheel rolling mechanics. The use of this technique makes it possible to obtain relatively simple equations for such power and kinematic parameters of the wheel as the coefficient of rolling resistance, the coefficient of tangential elasticity of the wheel, and hysteretic losses in the wheel material. The derived equations contain a small number of parameters that can be easily determined experimentally and are convenient for both theoretical and practical use. Comparison of theoretical and experimental results with studies of other authors shows their relatively small discrepancy, which confirms the validity of the research methodology used, as well as the assumptions made.

Rolling resistance

Elasticity

10.1051/bioconf/20249304023

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Engineering Design of ITEP Proton Linac for Nuclear Waste Transmutation

V. A. Andreev A.I. Balabin I.V. Chuvilo A. A. Drozdovsky A. A. Kolomiets

Nuclear transmutation

10.5170/cern-1996-007.252

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Matching a beam to a spatially homogeneous quadrupole channel

Sov. Phys. - Tech. Phys. (Engl. Transl.); (United States) (1985)

A.I. Balabin V.S. Kabanov I.M. Kapchinskii V.V. Kushin I.M. Lipkin

Rigidity profiles along an initial matching section are suggested which give almost perfect matching for a wide range of beam current phase densities for the case of microcanonical distributions. The matching quality for distributions with a nonuniform space charge density is shown to depend both on the current and on its distribution for phase densities up to 1 A/cmxmrad at the center of the beam.

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Sign-Alternating Phasing in Accelerating Systems of RF Rectangular Aperture Quadrupoles

A.I. Balabin G. N. Kropachev

Phaser

Aperture (computer memory)

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The 6 MHz RFQ Linac for HIF Driver

IEEE Particle Accelerator Conference (1987)

V. S. Artemov I. M. Kapchinskiy A.I. Balabin V.A. Batalin A. Ju. Djadin

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Beam Dynamics Studies on the EURISOL Driver Accelerator

A. Facco A.I. Balabin Rocco Paparella D. Zenere

A 1 GeV, 5 mA cw superconducting proton/H linac, with the capability of supplying cw primary beam to up to four targets simultaneously by means of a new beam splitting scheme, is under study in the framework of the EURISOL DS project which aims to produce an engineering-oriented design of a next generation European Radioactive beam facility. The EURISOL driver accelerator would be able to accelerate also a 100 μA, He beam up to 2.2 GeV, and a 5 mA deuteron beam up to 264 MeV. The linac characteristics and the status of the beam dynamics studies will be presented.

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