RuPAC2016 - List of Authors (Meshkov, I.N.)

Paper	Title	Page
WECAMH03	Analysis of the Particle Dynamics Stability in the Penning-Malmberg-Surko Trap	64
	I.N. Meshkov JINR, Dubna, Moscow Region, Russia M.K. Eseev NAFU, Arkhangelsk, Russia I.N. Meshkov, A.D. Ovsyannikov, D.A. Ovsyannikov, V.A. Ponomarev Saint Petersburg State University, Saint Petersburg, Russia
	Present report refers to the problem of the study of charged particle dynamics in the Penning-Malmberg-Surko trap. Various models of particle dynamics describing the magnetron and cyclotron motions are considered. Representation of the solutions in the form of a series is used for the magnetron motion. The problems of the stability of the magnetron motion are investigated.
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WECAMH04	Recent Experiments With High Energy Electron Cooler in COSY	67
	V.B. Reva, M.I. Bryzgunov, V.V. Parkhomchuk, D.N. Skorobogatov BINP SB RAS, Novosibirsk, Russia V. Kamerdzhiev FZJ, Jülich, Germany I.N. Meshkov JINR, Dubna, Moscow Region, Russia
	The 2 MeV electron cooling system at COSY-Jülich started operation in 2013. The cooling process was observed in the wide energy range of the electron beam from 100 keV to 1.26 MeV. Vertical, horizontal and longitudinal cooling was obtained with bunched and coasting proton beam. This report deals with electron cooling experiments at COSY with proton beam at energy 1.66 and 2.3 GeV. The proton beam was cooled at different regimes: RF on and off, barrier bucket RF, and cluster target on and off.
	Slides WECAMH04 [11.045 MB]
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FRCAMH05	Booster Synchrotron at NICA Accelerator Complex	160
	A. Tuzikov, O.I. Brovko, A.V. Butenko, A.V. Eliseev, A.A. Fateev, V. Karpinsky, H.G. Khodzhibagiyan, S.A. Kostromin, I.N. Meshkov, V.A. Mikhaylov, A.O. Sidorin, A.I. Sidorov, A.V. Smirnov, E. Syresin, G.V. Trubnikov, V. Volkov JINR, Dubna, Moscow Region, Russia O. Anchugov, V.A. Kiselev, D.A. Shvedov, A.N. Zhuravlev BINP SB RAS, Novosibirsk, Russia
	NICA is the new complex being constructed on the JINR aimed to provide collider experiments with ions up to aurum at energy of 4.5x4.5 GeV/u. The NICA layout includes 600 MeV/u Booster synchrotron as a part of the injection chain of the NICA Collider. The main goals of the Booster are the following: accumulation of 4E10⁹ Au³¹⁺ ions; acceleration of the heavy ions up to energy required for effective stripping; forming of the required beam emittance with electron cooling system. The layout makes it possible to place the Booster having 210.96 m circumference and four fold symmetry lattice inside the yoke of the former Synchrophasotron. The features of the Booster, its main systems, their parameters and current status are presented in this paper.
	Slides FRCAMH05 [16.830 MB]
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FRCAMH07	NICA Collider Lattice Optimization	166
	O.S. Kozlov, A.V. Butenko, H.G. Khodzhibagiyan, S.A. Kostromin, I.N. Meshkov, A.O. Sidorin, E. Syresin, G.V. Trubnikov JINR, Dubna, Moscow Region, Russia
	The Nuclotron-based Ion Collider fAcility (NICA) - accelerator complex is being constructed at JINR. It is aimed to the collider experiments with ions and protons and has to provide the ion-ion (Au+79) and ion-proton collision in the energy range of 1-4.5 GeV/amu and also polarized proton-proton and deuteron-deuteron collisions. Each of two collider ring has a racetrack shape with two bending arcs and two long straight sections. Beams are separated in vertical plane and come into collisions in two IPs. Dynamic aperture of the NICA collider has been studied for different parameters of the optics at IP. Effects of the fringe fields of structural elements are considered in the optimization of the collider lattice.
	Slides FRCAMH07 [4.547 MB]
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WEPSB037	Beam Transfer From Heavy-Ion Linear Accelerator HILAC Into Booster of NICA Accelerator Complex	443
	A. Tuzikov, A.V. Butenko, A.A. Fateev, S.Yu. Kolesnikov, I.N. Meshkov, V.A. Mikhaylov, V.S. Shvetsov, A.O. Sidorin, A.I. Sidorov, G.V. Trubnikov, V. Volkov JINR, Dubna, Moscow Region, Russia
	Designs of systems of ion beam transfer from the linear accelerator HILAC into the Booster of the NICA accelerator complex (JINR, Dubna) including the transport beam line HILAC-Booster and the beam injection system of the Booster are considered in the report. The proposed systems provide multivariant injection for accumulation of beams in the Booster with required intensity. Special attention is paid to various aspects of beam dynamics during its transfer. Main methods of beam injection into the Booster are described. These are single-turn, multiturn and multiple injection ones. Results of beam dynamics simulations are presented. Status of technical design and manufacturing of the systems' equipment is also highlighted.
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WEPSB059	Realization of Positron Annihilation Spectroscopy at LEPTA Facility	496
	K. Siemek, V.I. Hilinov, P. Horodek JINR/DLNP, Dubna, Moscow region, Russia E.V. Ahmanova, M.K. Eseev, A.G. Kobets, I.N. Meshkov, O. Orlov, A.A. Sidorin JINR, Dubna, Moscow Region, Russia M.K. Eseev NAFU, Arkhangelsk, Russia A.G. Kobets IERT, Kharkov, Ukraine
	Positrons are used in materials science to study open volume defects. Several positron annihilation spectroscopy (PAS) techniques exist. These methods are based on detection of the 511 keV gamma quantum. The first method is the analysis of the Doppler broadening of annihilation line and provide information about defect concentration. Both annihilation quanta can be observed. Coincidence observation of two quanta gives additional information about the environment around defect. The second method is based on lifetime concept, which allows to distinguish type of defects. Nowadays, positron beams are of great interest for materials science. Using a low energy, monoenergetic beam it is possible to control the positron penetration depth from the sample surface to a depth of several microns. Thus, the beam can be used to characterize thin films, analysis of surface modification, studying influence of ions on matter etc. This report aims to present a current status of realization and progress in PAS methods at LEPTA facility at JINR.
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WEPSB060	Development of Positron Annihilation Spectroscopy at the LEPTA Facility	499
	A.A. Sidorin, E.V. Ahmanova, M.K. Eseev, A.G. Kobets, I.N. Meshkov, O. Orlov JINR, Dubna, Moscow Region, Russia M.K. Eseev NAFU, Arkhangelsk, Russia V.I. Hilinov, P. Horodek, I.N. Meshkov, K. Siemek JINR/DLNP, Dubna, Moscow region, Russia P. Horodek, K. Siemek IFJ-PAN, Kraków, Poland A.G. Kobets IERT, Kharkov, Ukraine
	The report aims to present the status of the development of the LEPTA facility for further enhancement of the positron annihilation spectroscopy (PAS) method application at the LEPTA facility. The research in solid state physics performed currently is based on slow monochromatic positron flux from the injector and Doppler PAS. The new positron transfer channel being under construction at the LEPTA allows us to develop more advanced PAS method - so called 'Positron Annihilation life-time spectroscopy' (PALS). It will enrich significantly the research program at the LEPTA. PAS method is sensitive to microdefects in solids. A pair of gamma quanta, born as a result of positron-electron annihilation carries information about the density of the defects that have the size less than 10 nm and are located at the depth from the surface of the material depending on the positron energy. New monochromatic positron source construction supplied with the autonomous cooling system with emitter-source of the activity of 30 mCi (iThemba LABS production) and new positron transfer channel are presented in report.
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WECAMH02	Dynamics Positron Clouds by Storage in the Penning-Malmberg-Surko Trap at the LEPTA Facility
	M.K. Eseev NArFU, Arhangelsk, Russia M.K. Eseev JINR, Dubna, Moscow Region, Russia I.N. Meshkov JINR/DLNP, Dubna, Moscow region, Russia I.N. Meshkov Saint Petersburg State University, Saint Petersburg, Russia
	The paper presents the new mechanism are explained the increase in lifetime, intensity and compression positron cloud by using a rotating electric field (Rotating Wall) and other control parameters in the Penning-Malmberg-Surko Trap at the LEPTA Facility,. The application of the mechanism in a traps of another type, as well as the prospects for the use of bunches of positrons of positron annihilation spectroscopy. The theoretical basis and experimental results of are presented. Eseev M.K., Kobets A.G., et al. JETP Letters 102 (5) 261-265 (2015). ** Eseev M.K., Meshkov I.N. Traps for storing charged particles and antiparticles in high precision experiments // Phys. Usp. 59 304-317 (2016).
	Slides WECAMH02 [7.905 MB]
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Paper

Title

Page

Analysis of the Particle Dynamics Stability in the Penning-Malmberg-Surko Trap

64

I.N. Meshkov
JINR, Dubna, Moscow Region, Russia
M.K. Eseev
NAFU, Arkhangelsk, Russia
I.N. Meshkov, A.D. Ovsyannikov, D.A. Ovsyannikov, V.A. Ponomarev
Saint Petersburg State University, Saint Petersburg, Russia

Present report refers to the problem of the study of charged particle dynamics in the Penning-Malmberg-Surko trap. Various models of particle dynamics describing the magnetron and cyclotron motions are considered. Representation of the solutions in the form of a series is used for the magnetron motion. The problems of the stability of the magnetron motion are investigated.

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reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WECAMH04

Recent Experiments With High Energy Electron Cooler in COSY

67

V.B. Reva, M.I. Bryzgunov, V.V. Parkhomchuk, D.N. Skorobogatov
BINP SB RAS, Novosibirsk, Russia
V. Kamerdzhiev
FZJ, Jülich, Germany
I.N. Meshkov
JINR, Dubna, Moscow Region, Russia

The 2 MeV electron cooling system at COSY-Jülich started operation in 2013. The cooling process was observed in the wide energy range of the electron beam from 100 keV to 1.26 MeV. Vertical, horizontal and longitudinal cooling was obtained with bunched and coasting proton beam. This report deals with electron cooling experiments at COSY with proton beam at energy 1.66 and 2.3 GeV. The proton beam was cooled at different regimes: RF on and off, barrier bucket RF, and cluster target on and off.

Slides WECAMH04 [11.045 MB]

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FRCAMH05

Booster Synchrotron at NICA Accelerator Complex

160

A. Tuzikov, O.I. Brovko, A.V. Butenko, A.V. Eliseev, A.A. Fateev, V. Karpinsky, H.G. Khodzhibagiyan, S.A. Kostromin, I.N. Meshkov, V.A. Mikhaylov, A.O. Sidorin, A.I. Sidorov, A.V. Smirnov, E. Syresin, G.V. Trubnikov, V. Volkov
JINR, Dubna, Moscow Region, Russia
O. Anchugov, V.A. Kiselev, D.A. Shvedov, A.N. Zhuravlev
BINP SB RAS, Novosibirsk, Russia

NICA is the new complex being constructed on the JINR aimed to provide collider experiments with ions up to aurum at energy of 4.5x4.5 GeV/u. The NICA layout includes 600 MeV/u Booster synchrotron as a part of the injection chain of the NICA Collider. The main goals of the Booster are the following: accumulation of 4E10⁹ Au³¹⁺ ions; acceleration of the heavy ions up to energy required for effective stripping; forming of the required beam emittance with electron cooling system. The layout makes it possible to place the Booster having 210.96 m circumference and four fold symmetry lattice inside the yoke of the former Synchrophasotron. The features of the Booster, its main systems, their parameters and current status are presented in this paper.

Slides FRCAMH05 [16.830 MB]

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FRCAMH07

NICA Collider Lattice Optimization

166

O.S. Kozlov, A.V. Butenko, H.G. Khodzhibagiyan, S.A. Kostromin, I.N. Meshkov, A.O. Sidorin, E. Syresin, G.V. Trubnikov
JINR, Dubna, Moscow Region, Russia

The Nuclotron-based Ion Collider fAcility (NICA) - accelerator complex is being constructed at JINR. It is aimed to the collider experiments with ions and protons and has to provide the ion-ion (Au+79) and ion-proton collision in the energy range of 1-4.5 GeV/amu and also polarized proton-proton and deuteron-deuteron collisions. Each of two collider ring has a racetrack shape with two bending arcs and two long straight sections. Beams are separated in vertical plane and come into collisions in two IPs. Dynamic aperture of the NICA collider has been studied for different parameters of the optics at IP. Effects of the fringe fields of structural elements are considered in the optimization of the collider lattice.

Slides FRCAMH07 [4.547 MB]

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WEPSB037

Beam Transfer From Heavy-Ion Linear Accelerator HILAC Into Booster of NICA Accelerator Complex

443

A. Tuzikov, A.V. Butenko, A.A. Fateev, S.Yu. Kolesnikov, I.N. Meshkov, V.A. Mikhaylov, V.S. Shvetsov, A.O. Sidorin, A.I. Sidorov, G.V. Trubnikov, V. Volkov
JINR, Dubna, Moscow Region, Russia

Designs of systems of ion beam transfer from the linear accelerator HILAC into the Booster of the NICA accelerator complex (JINR, Dubna) including the transport beam line HILAC-Booster and the beam injection system of the Booster are considered in the report. The proposed systems provide multivariant injection for accumulation of beams in the Booster with required intensity. Special attention is paid to various aspects of beam dynamics during its transfer. Main methods of beam injection into the Booster are described. These are single-turn, multiturn and multiple injection ones. Results of beam dynamics simulations are presented. Status of technical design and manufacturing of the systems' equipment is also highlighted.

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WEPSB059

Realization of Positron Annihilation Spectroscopy at LEPTA Facility

496

K. Siemek, V.I. Hilinov, P. Horodek
JINR/DLNP, Dubna, Moscow region, Russia
E.V. Ahmanova, M.K. Eseev, A.G. Kobets, I.N. Meshkov, O. Orlov, A.A. Sidorin
JINR, Dubna, Moscow Region, Russia
M.K. Eseev
NAFU, Arkhangelsk, Russia
A.G. Kobets
IERT, Kharkov, Ukraine

Positrons are used in materials science to study open volume defects. Several positron annihilation spectroscopy (PAS) techniques exist. These methods are based on detection of the 511 keV gamma quantum. The first method is the analysis of the Doppler broadening of annihilation line and provide information about defect concentration. Both annihilation quanta can be observed. Coincidence observation of two quanta gives additional information about the environment around defect. The second method is based on lifetime concept, which allows to distinguish type of defects. Nowadays, positron beams are of great interest for materials science. Using a low energy, monoenergetic beam it is possible to control the positron penetration depth from the sample surface to a depth of several microns. Thus, the beam can be used to characterize thin films, analysis of surface modification, studying influence of ions on matter etc. This report aims to present a current status of realization and progress in PAS methods at LEPTA facility at JINR.

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEPSB060

Development of Positron Annihilation Spectroscopy at the LEPTA Facility

499

A.A. Sidorin, E.V. Ahmanova, M.K. Eseev, A.G. Kobets, I.N. Meshkov, O. Orlov
JINR, Dubna, Moscow Region, Russia
M.K. Eseev
NAFU, Arkhangelsk, Russia
V.I. Hilinov, P. Horodek, I.N. Meshkov, K. Siemek
JINR/DLNP, Dubna, Moscow region, Russia
P. Horodek, K. Siemek
IFJ-PAN, Kraków, Poland
A.G. Kobets
IERT, Kharkov, Ukraine

The report aims to present the status of the development of the LEPTA facility for further enhancement of the positron annihilation spectroscopy (PAS) method application at the LEPTA facility. The research in solid state physics performed currently is based on slow monochromatic positron flux from the injector and Doppler PAS. The new positron transfer channel being under construction at the LEPTA allows us to develop more advanced PAS method - so called 'Positron Annihilation life-time spectroscopy' (PALS). It will enrich significantly the research program at the LEPTA. PAS method is sensitive to microdefects in solids. A pair of gamma quanta, born as a result of positron-electron annihilation carries information about the density of the defects that have the size less than 10 nm and are located at the depth from the surface of the material depending on the positron energy. New monochromatic positron source construction supplied with the autonomous cooling system with emitter-source of the activity of 30 mCi (iThemba LABS production) and new positron transfer channel are presented in report.

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WECAMH02

Dynamics Positron Clouds by Storage in the Penning-Malmberg-Surko Trap at the LEPTA Facility

M.K. Eseev
NArFU, Arhangelsk, Russia
M.K. Eseev
JINR, Dubna, Moscow Region, Russia
I.N. Meshkov
JINR/DLNP, Dubna, Moscow region, Russia
I.N. Meshkov
Saint Petersburg State University, Saint Petersburg, Russia

The paper presents the new mechanism are explained the increase in lifetime, intensity and compression positron cloud by using a rotating electric field (Rotating Wall) and other control parameters in the Penning-Malmberg-Surko Trap at the LEPTA Facility*,**. The application of the mechanism in a traps of another type, as well as the prospects for the use of bunches of positrons of positron annihilation spectroscopy. The theoretical basis and experimental results of are presented.
* Eseev M.K., Kobets A.G., et al. JETP Letters 102 (5) 261-265 (2015).
** Eseev M.K., Meshkov I.N. Traps for storing charged particles and antiparticles in high precision experiments // Phys. Usp. 59 304-317 (2016).

Slides WECAMH02 [7.905 MB]

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