RuPAC2021 - List of Authors (Fomin, Ye.)

Paper	Title	Page
MOPSA23	Machine Learning for the Storage Ring Optimization	169
	Ye. Fomin NRC, Moscow, Russia
	Funding: The reported study was funded by RFBR, project number 19-29-12039 The design and optimization of new lattice for modern synchrotron radiation sources are for the most part an art and highly dependent on the researcher skills. Since both modern existing and designing storage rings is very complex nonlinear system the researchers spend a lot of effort to solve their problems. In this work the use of machine learning technics to improve the efficiency of solving nonlinear systems optimization problems is considered.
DOI •	reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-MOPSA23
About •	Received ※ 06 October 2021 — Accepted ※ 09 October 2021 — Issued ※ 16 October 2021
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUC01	Status of the Kurchatov Synchrotron Radiation Source	55
	A.G. Valentinov, A. Belkov, Ye. Fomin, E.V. Kaportsev, V. Korchuganov, Y.V. Krylov, V.I. Moiseev, K. Moseev, N.I. Moseiko, D.G. Odintsov, S.G. Pesterev, A.S. Smygacheva, A.I. Stirin, V.A. Ushakov NRC, Moscow, Russia
	The Kurchatov synchrotron radiation source goes on to operate in the range of synchrotron radiation from VUV up to hard X-ray. An electron current achieves 150 mA at 2.5 GeV, up to 12 experimental stations may function simultaneously. Improvement of the facility according Federal Program of KSRS modernization is in progress. Two 3 Tesla superconducting wigglers have been installed at main ring at 2019. They were tested with small electron beam current at 2020-2021. Wigglers’ influence on beam parameters is much closed to calculated value. Vacuum system has been upgraded at 2020. In 2021 control system will be completely modified. Manufactoring of third 181 MHz RF generator, new preliminary amplification cascades and new waveguides for all three generators continues in Budker Institute (Novosibirsk). Preparation of great modernization of the whole facility according Federal Program for science infrastructure development has been started.
	Slides TUC01 [17.060 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-TUC01
About •	Received ※ 24 September 2021 — Accepted ※ 27 September 2021 — Issued ※ 09 October 2021
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUC02	Concept of a New Kurchatov Synchrotron Radiation Source
	V. Korchuganov, Ye. Fomin, M.V. Kovalchuk, A.S. Smygacheva, V.A. Ushakov, A.G. Valentinov NRC, Moscow, Russia S.M. Polozov MEPhI, Moscow, Russia
	The Kurchatov source of SR has started a project for an upgrade of the accelerator complex based on the existing infrastructure. Instead of the operating 2.5 GeV SR source with a natural emittance of 98 nm-rad, a new 2.5 GeV SR source with a natural emittance less than 3 nm-rad will be built. To ensure its "continuous" operation, a new injection complex (top-up energy injection scheme) - 0.2-2.5 GeV booster synchrotron and 200 MeV linac with transfer lines will be installed. The report gives the concept of the new complex. Also, special attention is paid to the main storage ring operation with insertion devices and problems of electron beam injection in the storage ring at the multi-bunch and single-bunch modes.
	Slides TUC02 [5.979 MB]
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUPSB33	2.5 GeV Booster Synchrotron for a New Kurchatov Synchrotron Radiation Source	293
	A.S. Smygacheva, Ye. Fomin, V. Korchuganov, V.A. Ushakov, A.G. Valentinov NRC, Moscow, Russia
	The Project of complete modernization of the current accelerator complex is in progress in the NRC «Kurchatov Institute». A new booster synchrotron is a part of the injection complex for a new 3-d generation synchrotron light source. The booster has to ensure reliable and stable operation of the upgraded main storage ring. The paper presents the final design of the new booster synchrotron and its main parameters.
DOI •	reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-TUPSB33
About •	Received ※ 22 September 2021 — Accepted ※ 23 September 2021 — Issued ※ 16 October 2021
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUPSB34	New Lattice Design for Kurchatov Synchrotron Radiation Source	297
	Ye. Fomin, V. Korchuganov NRC, Moscow, Russia
	Funding: The reported study was partially funded by RFBR, project number 19-29-12039 Nowadays the upgrade project of the 2nd generation synchrotron radiation source operating at NRC Kurchatov Institute has been ongoing. The main aim of the project is to create a new synchrotron radiation source with the same 124 m circumference and providing synchrotron radiation properties inherent to the 3rd generation sources (emittance ~ 3 nm·rad). The new machine will consist of new storage ring with 2.5 GeV electron energy, full energy booster synchrotron and 0.2 GeV linac. The mandatory requirement for the project is to keep all currently operating beamlines. In this article we present the design challenges and approaches for this machine, the conceptional design and baseline lattice.
DOI •	reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-TUPSB34
About •	Received ※ 22 September 2021 — Revised ※ 29 September 2021 — Accepted ※ 09 October 2021 — Issued ※ 20 October 2021
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEPSC20	Magnets Design for 2.5 GeV Booster Synchrotron	386
	A.S. Smygacheva, Ye. Fomin, V. Korchuganov NRC, Moscow, Russia
	The Project of complete modernization of the current accelerator complex is in progress in the NRC «Kurchatov Institute». The development of a new booster synchrotron as a part of the injection complex for a new 3-d generation synchrotron light source is included in the Project. The booster synchrotron has 24 dipoles, 60 quadrupoles, 48 sextupoles and 24 correctors. In order to obtain the required field quality, 2D- and 3D-simulations of magnets were carried out. The obtained geometry for each of the magnets is presented in the paper.
DOI •	reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-WEPSC20
About •	Received ※ 18 September 2021 — Revised ※ 23 September 2021 — Accepted ※ 27 September 2021 — Issued ※ 08 October 2021
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

Machine Learning for the Storage Ring Optimization

169

Ye. Fomin
NRC, Moscow, Russia

Funding: The reported study was funded by RFBR, project number 19-29-12039
The design and optimization of new lattice for modern synchrotron radiation sources are for the most part an art and highly dependent on the researcher skills. Since both modern existing and designing storage rings is very complex nonlinear system the researchers spend a lot of effort to solve their problems. In this work the use of machine learning technics to improve the efficiency of solving nonlinear systems optimization problems is considered.

DOI •

reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-MOPSA23

About •

Received ※ 06 October 2021 — Accepted ※ 09 October 2021 — Issued ※ 16 October 2021

Cite •

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

TUC01

Status of the Kurchatov Synchrotron Radiation Source

55

A.G. Valentinov, A. Belkov, Ye. Fomin, E.V. Kaportsev, V. Korchuganov, Y.V. Krylov, V.I. Moiseev, K. Moseev, N.I. Moseiko, D.G. Odintsov, S.G. Pesterev, A.S. Smygacheva, A.I. Stirin, V.A. Ushakov
NRC, Moscow, Russia

The Kurchatov synchrotron radiation source goes on to operate in the range of synchrotron radiation from VUV up to hard X-ray. An electron current achieves 150 mA at 2.5 GeV, up to 12 experimental stations may function simultaneously. Improvement of the facility according Federal Program of KSRS modernization is in progress. Two 3 Tesla superconducting wigglers have been installed at main ring at 2019. They were tested with small electron beam current at 2020-2021. Wigglers’ influence on beam parameters is much closed to calculated value. Vacuum system has been upgraded at 2020. In 2021 control system will be completely modified. Manufactoring of third 181 MHz RF generator, new preliminary amplification cascades and new waveguides for all three generators continues in Budker Institute (Novosibirsk). Preparation of great modernization of the whole facility according Federal Program for science infrastructure development has been started.

Slides TUC01 [17.060 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-TUC01

About •

Received ※ 24 September 2021 — Accepted ※ 27 September 2021 — Issued ※ 09 October 2021

Cite •

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

TUC02

Concept of a New Kurchatov Synchrotron Radiation Source

V. Korchuganov, Ye. Fomin, M.V. Kovalchuk, A.S. Smygacheva, V.A. Ushakov, A.G. Valentinov
NRC, Moscow, Russia
S.M. Polozov
MEPhI, Moscow, Russia

The Kurchatov source of SR has started a project for an upgrade of the accelerator complex based on the existing infrastructure. Instead of the operating 2.5 GeV SR source with a natural emittance of 98 nm-rad, a new 2.5 GeV SR source with a natural emittance less than 3 nm-rad will be built. To ensure its "continuous" operation, a new injection complex (top-up energy injection scheme) - 0.2-2.5 GeV booster synchrotron and 200 MeV linac with transfer lines will be installed. The report gives the concept of the new complex. Also, special attention is paid to the main storage ring operation with insertion devices and problems of electron beam injection in the storage ring at the multi-bunch and single-bunch modes.

Slides TUC02 [5.979 MB]

Cite •

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

TUPSB33

2.5 GeV Booster Synchrotron for a New Kurchatov Synchrotron Radiation Source

293

A.S. Smygacheva, Ye. Fomin, V. Korchuganov, V.A. Ushakov, A.G. Valentinov
NRC, Moscow, Russia

The Project of complete modernization of the current accelerator complex is in progress in the NRC «Kurchatov Institute». A new booster synchrotron is a part of the injection complex for a new 3-d generation synchrotron light source. The booster has to ensure reliable and stable operation of the upgraded main storage ring. The paper presents the final design of the new booster synchrotron and its main parameters.

DOI •

reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-TUPSB33

About •

Received ※ 22 September 2021 — Accepted ※ 23 September 2021 — Issued ※ 16 October 2021

Cite •

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

TUPSB34

New Lattice Design for Kurchatov Synchrotron Radiation Source

297

Ye. Fomin, V. Korchuganov
NRC, Moscow, Russia

Funding: The reported study was partially funded by RFBR, project number 19-29-12039
Nowadays the upgrade project of the 2nd generation synchrotron radiation source operating at NRC Kurchatov Institute has been ongoing. The main aim of the project is to create a new synchrotron radiation source with the same 124 m circumference and providing synchrotron radiation properties inherent to the 3rd generation sources (emittance ~ 3 nm·rad). The new machine will consist of new storage ring with 2.5 GeV electron energy, full energy booster synchrotron and 0.2 GeV linac. The mandatory requirement for the project is to keep all currently operating beamlines. In this article we present the design challenges and approaches for this machine, the conceptional design and baseline lattice.

DOI •

reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-TUPSB34

About •

Received ※ 22 September 2021 — Revised ※ 29 September 2021 — Accepted ※ 09 October 2021 — Issued ※ 20 October 2021

Cite •

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

WEPSC20

Magnets Design for 2.5 GeV Booster Synchrotron

386

A.S. Smygacheva, Ye. Fomin, V. Korchuganov
NRC, Moscow, Russia

The Project of complete modernization of the current accelerator complex is in progress in the NRC «Kurchatov Institute». The development of a new booster synchrotron as a part of the injection complex for a new 3-d generation synchrotron light source is included in the Project. The booster synchrotron has 24 dipoles, 60 quadrupoles, 48 sextupoles and 24 correctors. In order to obtain the required field quality, 2D- and 3D-simulations of magnets were carried out. The obtained geometry for each of the magnets is presented in the paper.

DOI •

reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-WEPSC20

About •

Received ※ 18 September 2021 — Revised ※ 23 September 2021 — Accepted ※ 27 September 2021 — Issued ※ 08 October 2021

Cite •

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