RUPAC2018 - List of Authors (Kobets, A.G.)

Paper	Title	Page
TUPSA58	A Method for Measuring the Positron Lifetime in Solid Matter with a Continuous Positron Beam	267
	A.A. Sidorin, E.V. Ahmanova, A.G. Kobets, V.V. Kobets, I.N. Meshkov, O. Orlov JINR, Dubna, Moscow Region, Russia M.K. Eseev NArFU, Arhangelsk, 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 I.N. Meshkov Saint Petersburg State University, Saint Petersburg, Russia
	The report proposes the scheme and design of the setup for formation a continuous monochromatic positron flux with controlled time of arrival at the target, independent of the injection time in a limited time interval. The setup is designed to perform experiments to measure the positron lifetime with the positron annihilation spectroscopy method (Positron Annihilation Lifetime Spectroscopy - PALS). PALS method allows to distinguish defect types in the materials. It is possible to vary the positron energy in the present version of the setup that allows us to analyze the distribution of defects along the depth of the sample. The scheme of periodic RF voltage generation of a given form and measurement of the positron lifetime, is discussed.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-RUPAC2018-TUPSA58
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TUPSA59	Setup for Secondary Electron-Electron Emission Coefficient Study	270
	O. Orlov, A.G. Kobets, I.N. Meshkov, A.A. Sidorin JINR, Dubna, Moscow Region, Russia V.I. Hilinov JINR/DLNP, Dubna, Moscow region, Russia A.G. Kobets IERT, Kharkov, Ukraine I.N. Meshkov Saint Petersburg State University, Saint Petersburg, Russia
	Setup for measurement of secondary electron yield from metal surfaces and other materials is developed. This work is related to the known problem of electron cloud formation in the synchrotron vacuum chamber during the beam passage. It is planned to measure the dependence of the SEY on the chamber material type and the structure of the surface of the chamber wall. The developed device allows us to register the spectrum of secondary electrons.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-RUPAC2018-TUPSA59
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TUPSA22	Commissioning of Electron Cooling System of NICA Booster	188
	S.V. Semenov, A.G. Kobets, S.Yu. Kolesnikov, A.S. Sergeev, A.A. Sidorin, A.V. Smirnov, Yu.A. Tumanova, L.V. Zinovyev JINR, Dubna, Moscow Region, Russia M.I. Bryzgunov, A.V. Bubley, V.V. Parkhomchuk, V.B. Reva BINP SB RAS, Novosibirsk, Russia
	At the NICA project, two electron cooling systems were planned at the booster and collider. The booster cooler will be used for the multiturn injection procedure and for the formation of necessary beam parameters before injection from the booster to Nuclotron. This article presents the status of the commissioning of the electron cooling system at the NICA booster. The electron cooling system was produced in BINP (Novosibirsk) and delivered to JINR (Dubna) last year. This year the commissioning of the cooler was done for parameter of the injection energy of ions 3.2 GeV/u. In the nearest future it will test for the intermediate ion energy 100 GeV/u. And finally, the cooler should operates at both energy during one injection cycle.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-RUPAC2018-TUPSA22
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Paper

Title

Page

A Method for Measuring the Positron Lifetime in Solid Matter with a Continuous Positron Beam

267

A.A. Sidorin, E.V. Ahmanova, A.G. Kobets, V.V. Kobets, I.N. Meshkov, O. Orlov
JINR, Dubna, Moscow Region, Russia
M.K. Eseev
NArFU, Arhangelsk, 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
I.N. Meshkov
Saint Petersburg State University, Saint Petersburg, Russia

The report proposes the scheme and design of the setup for formation a continuous monochromatic positron flux with controlled time of arrival at the target, independent of the injection time in a limited time interval. The setup is designed to perform experiments to measure the positron lifetime with the positron annihilation spectroscopy method (Positron Annihilation Lifetime Spectroscopy - PALS). PALS method allows to distinguish defect types in the materials. It is possible to vary the positron energy in the present version of the setup that allows us to analyze the distribution of defects along the depth of the sample. The scheme of periodic RF voltage generation of a given form and measurement of the positron lifetime, is discussed.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-RUPAC2018-TUPSA58

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

TUPSA59

Setup for Secondary Electron-Electron Emission Coefficient Study

270

O. Orlov, A.G. Kobets, I.N. Meshkov, A.A. Sidorin
JINR, Dubna, Moscow Region, Russia
V.I. Hilinov
JINR/DLNP, Dubna, Moscow region, Russia
A.G. Kobets
IERT, Kharkov, Ukraine
I.N. Meshkov
Saint Petersburg State University, Saint Petersburg, Russia

Setup for measurement of secondary electron yield from metal surfaces and other materials is developed. This work is related to the known problem of electron cloud formation in the synchrotron vacuum chamber during the beam passage. It is planned to measure the dependence of the SEY on the chamber material type and the structure of the surface of the chamber wall. The developed device allows us to register the spectrum of secondary electrons.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-RUPAC2018-TUPSA59

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

TUPSA22

Commissioning of Electron Cooling System of NICA Booster

188

S.V. Semenov, A.G. Kobets, S.Yu. Kolesnikov, A.S. Sergeev, A.A. Sidorin, A.V. Smirnov, Yu.A. Tumanova, L.V. Zinovyev
JINR, Dubna, Moscow Region, Russia
M.I. Bryzgunov, A.V. Bubley, V.V. Parkhomchuk, V.B. Reva
BINP SB RAS, Novosibirsk, Russia

At the NICA project, two electron cooling systems were planned at the booster and collider. The booster cooler will be used for the multiturn injection procedure and for the formation of necessary beam parameters before injection from the booster to Nuclotron. This article presents the status of the commissioning of the electron cooling system at the NICA booster. The electron cooling system was produced in BINP (Novosibirsk) and delivered to JINR (Dubna) last year. This year the commissioning of the cooler was done for parameter of the injection energy of ions 3.2 GeV/u. In the nearest future it will test for the intermediate ion energy 100 GeV/u. And finally, the cooler should operates at both energy during one injection cycle.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-RUPAC2018-TUPSA22

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