RuPAC2021 - List of Keywords (storage-ring)

Paper	Title	Other Keywords	Page
TUB03	Methods and Systematic Errors for Searching for the Electric Dipole Moment of Charged Particle Using a Storage Ring	dipole, proton, site, experiment	44
	V. Senichev, A.E. Aksentyev, A.A. Melnikov RAS/INR, Moscow, Russia
	One of possible argument for CP-invariance violation is the existence of non-vanishing electric dipole moment (EDM) of elementary particles. To search for the EDM the BNL proposed to construct a special ring implementing the frozen spin mode in order to detect the EDM signal. Since systematic errors determine the sensitivity of a method, this article analyzes some major methods proposed for searching for the EDM from the point of view of this problem. The frequency domain method (FDM) proposed by the authors does not require a special accelerator for deuterons and requires spin precession frequency measurements only. The method has four features: the total spin precession frequency due both to the electric and the magnetic dipole moments in an imperfect ring in the longitudinal-vertical plane is measured at an absolute statistic error value of ~10^-7 rad/sec in one ring filling; the ring elements position remain unchanged when changing the beam circulation direction from clockwise (CW) to counterclockwise (CCW); calibration of the effective Lorentz factor by means of spin precession frequency measurements in the horizontal plane is carried out alternately in each CW and CCW procedure; the approximate relationship between the spin precession frequency components is set to exclude them from mixing to the expected EDM signal at a statistical sensitivity level approaching 10^-29 e cm. The FDM solves the problem of systematic errors, and can be applied in the NICA facility.
	Slides TUB03 [6.184 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-TUB03
About •	Received ※ 10 September 2021 — Revised ※ 18 September 2021 — Accepted ※ 27 September 2021 — Issued ※ 17 October 2021
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUPSB10	Modeling of the Spin-Navigator Method for Manipulating the Beam Polarization in a Spin-Transparent Storage Ring	polarization, lattice, closed-orbit, injection	251
	A.E. Aksentyev, A.A. Melnikov, V. Senichev RAS/INR, Moscow, Russia A.E. Aksentyev MEPhI, Moscow, Russia V. Ladygin JINR, Dubna, Moscow Region, Russia
	A method for manipulating the orientation of the beam polarization axis based on using the so-called "spin-navigator" technique in a storage ring operating in the spin-transparent regime has been modelled. The beam particles’ spin- and orbital dynamics have been numerically investigated with the purpose of determining the method’s feasibility; the latter’s effect on spin-decoherence has been studied also.
	Poster TUPSB10 [1.848 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-TUPSB10
About •	Received ※ 24 September 2021 — Accepted ※ 29 September 2021 — Issued ※ 06 October 2021
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUPSB25	Storage Ring Design and Beam Instabilities Investigation for MEPhI’s Photon Source	scattering, photon, laser, radiation	277
	V.S. Dyubkov, S.M. Polozov MEPhI, Moscow, Russia
	Funding: Work supported by Russian Foundation for Basic Research, grant no. 19-29-12036 There is a design of a compact photon source based on inverse Compton scattering at NRNU MEPhI. Updated synchrotron lattice, electron dynamics simulation and beam instabilities studies are presented.
DOI •	reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-TUPSB25
About •	Received ※ 30 September 2021 — Accepted ※ 09 October 2021 — Issued ※ 23 October 2021
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUPSB26	Lattice Options With Reverse Bending Magnets for USSR HMBA Storage Ring	lattice, SRF, synchrotron, emittance	280
	V.S. Dyubkov MEPhI, Moscow, Russia V.S. Dyubkov, T. Kulevoy NRC, Moscow, Russia T. Kulevoy, E.D. Tsyplakov ITEP, Moscow, Russia E.D. Tsyplakov MIPT, Dolgoprudniy, Moscow Region, Russia
	The 4th generation light source, the Ultimate Source of Synchrotron Radiation (USSR) is under design, to be built in Moscow region (Russia). It will be a 6 GeV and about 1100 m circumference storage ring synchrotron. Baseline lattice of the USSR for now is a scaled version of the ESRF-EBS Hybrid Multi-Bend Achromat (HMBA) lattice that was successfully commissioned in 2020. Its natural horizontal electron beam emittance is about 70 pm·rad. Further reduction of beam emittance can be achieved with the use of reverse bending magnets. The evolution of the envisaged lattices for the USSR storage ring, including options with reverse bends will be presented.
DOI •	reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-TUPSB26
About •	Received ※ 24 September 2021 — Revised ※ 25 September 2021 — Accepted ※ 29 September 2021 — Issued ※ 18 October 2021
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	booster, synchrotron, lattice, electron	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)

WEPSC08	Vacuum Condition Simulations for Vacuum Chambers of Synchrotron Radiation Source	radiation, vacuum, synchrotron, synchrotron-radiation	358
	S.M. Polozov, V.S. Dyubkov, A.S. Panishev, V.L. Shatokhin MEPhI, Moscow, Russia V.S. Dyubkov, S.M. Polozov, V.L. Shatokhin NRC, Moscow, Russia
	Analysis of gas loads for the vacuum system chambers of the 6GeV synchrotron radiation (SR) source are carried out. The main source of gas loads is the photostimulated desorption induced by SR. The influence of storage ring lattice, geometric dimensions and beam parameters on the vacuum conditions in SR-source prototype chambers is studied. The geometric model of the storage ring chamber designed for simulation is considered. The simulation of the radiation flux parameters generated by the charged particles passing through the section of the vacuum chamber has been performed. The technique of calculating the parameters of SR and photostimulated desorption by means of Synrad+ and Molflow+ codes is applied.
DOI •	reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-WEPSC08
About •	Received ※ 27 September 2021 — Revised ※ 28 September 2021 — Accepted ※ 09 October 2021 — Issued ※ 18 October 2021
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEPSC12	Preliminary Calculation of the Power Coupler for the SYLA Storage Ring RF Cavity	cavity, coupling, operation, synchrotron	364
	S.V. Matsievskiy, M. Gusarova, M.V. Lalayan, Ya.V. Shashkov MEPhI, Moscow, Russia
	Several new accelerator facilities will be built in Russia in the next few years. One of those facilities is a 6 GeV storage ring light source, the Ultimate Source of Synchrotron Radiation to be built in Protvino, near Moscow. This paper considers storage ring RF cavity power coupler design issues and provides preliminary calculations of the device.
	Poster WEPSC12 [0.741 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-WEPSC12
About •	Received ※ 08 September 2021 — Accepted ※ 27 September 2021 — Issued ※ 22 October 2021
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEPSC44	Beam Loss Monitoring System for the SKIF Synchrotron Light Source	operation, simulation, electron, diagnostics	426
	Yu.I. Maltseva, A.D. Khilchenko, O.I. Meshkov, A.A. Morsina BINP SB RAS, Novosibirsk, Russia S.V. Ivanenko, E.A. Puryga Budker Institute of Nuclear Physics, Novosibirsk, Russia X.C. Ma BINP, Novosibirsk, Russia Yu.I. Maltseva, O.I. Meshkov NSU, Novosibirsk, Russia A.A. Morsina NSTU, Novosibirsk, Russia
	The Siberian ring source of photons (SKIF) is a new 3 GeV fourth-generation synchrotron light source being developed by the Budker Institute of Nuclear Physics (BINP). In order to ensure its reliable operation, beam loss diagnostics system is required. Two types of beam loss monitors will be installed at the SKIF: 5 fiber-based Cherenkov Beam Loss Monitors (CBLM) for the linac and transfer lines and 128 Scintillator-based Beam Loss Monitors (SBLM) for the storage ring. Sophisticated electronic equipment are employed to use these monitors at different SKIF operating modes. The article describes the design of the SKIF beam loss diagnostics system based on numerical simulations and experimental studies.
DOI •	reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-WEPSC44
About •	Received ※ 08 October 2021 — Accepted ※ 09 October 2021 — Issued ※ 18 October 2021
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Other Keywords

Page

TUB03

Methods and Systematic Errors for Searching for the Electric Dipole Moment of Charged Particle Using a Storage Ring

dipole, proton, site, experiment

44

V. Senichev, A.E. Aksentyev, A.A. Melnikov
RAS/INR, Moscow, Russia

One of possible argument for CP-invariance violation is the existence of non-vanishing electric dipole moment (EDM) of elementary particles. To search for the EDM the BNL proposed to construct a special ring implementing the frozen spin mode in order to detect the EDM signal. Since systematic errors determine the sensitivity of a method, this article analyzes some major methods proposed for searching for the EDM from the point of view of this problem. The frequency domain method (FDM) proposed by the authors does not require a special accelerator for deuterons and requires spin precession frequency measurements only. The method has four features: the total spin precession frequency due both to the electric and the magnetic dipole moments in an imperfect ring in the longitudinal-vertical plane is measured at an absolute statistic error value of ~10^-7 rad/sec in one ring filling; the ring elements position remain unchanged when changing the beam circulation direction from clockwise (CW) to counterclockwise (CCW); calibration of the effective Lorentz factor by means of spin precession frequency measurements in the horizontal plane is carried out alternately in each CW and CCW procedure; the approximate relationship between the spin precession frequency components is set to exclude them from mixing to the expected EDM signal at a statistical sensitivity level approaching 10^-29 e cm. The FDM solves the problem of systematic errors, and can be applied in the NICA facility.

Slides TUB03 [6.184 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-TUB03

About •

Received ※ 10 September 2021 — Revised ※ 18 September 2021 — Accepted ※ 27 September 2021 — Issued ※ 17 October 2021

Cite •

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

TUPSB10

Modeling of the Spin-Navigator Method for Manipulating the Beam Polarization in a Spin-Transparent Storage Ring

polarization, lattice, closed-orbit, injection

251

A.E. Aksentyev, A.A. Melnikov, V. Senichev
RAS/INR, Moscow, Russia
A.E. Aksentyev
MEPhI, Moscow, Russia
V. Ladygin
JINR, Dubna, Moscow Region, Russia

A method for manipulating the orientation of the beam polarization axis based on using the so-called "spin-navigator" technique in a storage ring operating in the spin-transparent regime has been modelled. The beam particles’ spin- and orbital dynamics have been numerically investigated with the purpose of determining the method’s feasibility; the latter’s effect on spin-decoherence has been studied also.

Poster TUPSB10 [1.848 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-TUPSB10

About •

Received ※ 24 September 2021 — Accepted ※ 29 September 2021 — Issued ※ 06 October 2021

Cite •

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

TUPSB25

Storage Ring Design and Beam Instabilities Investigation for MEPhI’s Photon Source

scattering, photon, laser, radiation

277

V.S. Dyubkov, S.M. Polozov
MEPhI, Moscow, Russia

Funding: Work supported by Russian Foundation for Basic Research, grant no. 19-29-12036
There is a design of a compact photon source based on inverse Compton scattering at NRNU MEPhI. Updated synchrotron lattice, electron dynamics simulation and beam instabilities studies are presented.

DOI •

reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-TUPSB25

About •

Received ※ 30 September 2021 — Accepted ※ 09 October 2021 — Issued ※ 23 October 2021

Cite •

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

TUPSB26

Lattice Options With Reverse Bending Magnets for USSR HMBA Storage Ring

lattice, SRF, synchrotron, emittance

280

V.S. Dyubkov
MEPhI, Moscow, Russia
V.S. Dyubkov, T. Kulevoy
NRC, Moscow, Russia
T. Kulevoy, E.D. Tsyplakov
ITEP, Moscow, Russia
E.D. Tsyplakov
MIPT, Dolgoprudniy, Moscow Region, Russia

The 4th generation light source, the Ultimate Source of Synchrotron Radiation (USSR) is under design, to be built in Moscow region (Russia). It will be a 6 GeV and about 1100 m circumference storage ring synchrotron. Baseline lattice of the USSR for now is a scaled version of the ESRF-EBS Hybrid Multi-Bend Achromat (HMBA) lattice that was successfully commissioned in 2020. Its natural horizontal electron beam emittance is about 70 pm·rad. Further reduction of beam emittance can be achieved with the use of reverse bending magnets. The evolution of the envisaged lattices for the USSR storage ring, including options with reverse bends will be presented.

DOI •

reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-TUPSB26

About •

Received ※ 24 September 2021 — Revised ※ 25 September 2021 — Accepted ※ 29 September 2021 — Issued ※ 18 October 2021

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

booster, synchrotron, lattice, electron

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)

WEPSC08

Vacuum Condition Simulations for Vacuum Chambers of Synchrotron Radiation Source

radiation, vacuum, synchrotron, synchrotron-radiation

358

S.M. Polozov, V.S. Dyubkov, A.S. Panishev, V.L. Shatokhin
MEPhI, Moscow, Russia
V.S. Dyubkov, S.M. Polozov, V.L. Shatokhin
NRC, Moscow, Russia

Analysis of gas loads for the vacuum system chambers of the 6GeV synchrotron radiation (SR) source are carried out. The main source of gas loads is the photostimulated desorption induced by SR. The influence of storage ring lattice, geometric dimensions and beam parameters on the vacuum conditions in SR-source prototype chambers is studied. The geometric model of the storage ring chamber designed for simulation is considered. The simulation of the radiation flux parameters generated by the charged particles passing through the section of the vacuum chamber has been performed. The technique of calculating the parameters of SR and photostimulated desorption by means of Synrad+ and Molflow+ codes is applied.

DOI •

reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-WEPSC08

About •

Received ※ 27 September 2021 — Revised ※ 28 September 2021 — Accepted ※ 09 October 2021 — Issued ※ 18 October 2021

Cite •

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

WEPSC12

Preliminary Calculation of the Power Coupler for the SYLA Storage Ring RF Cavity

cavity, coupling, operation, synchrotron

364

S.V. Matsievskiy, M. Gusarova, M.V. Lalayan, Ya.V. Shashkov
MEPhI, Moscow, Russia

Several new accelerator facilities will be built in Russia in the next few years. One of those facilities is a 6 GeV storage ring light source, the Ultimate Source of Synchrotron Radiation to be built in Protvino, near Moscow. This paper considers storage ring RF cavity power coupler design issues and provides preliminary calculations of the device.

Poster WEPSC12 [0.741 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-WEPSC12

About •

Received ※ 08 September 2021 — Accepted ※ 27 September 2021 — Issued ※ 22 October 2021

Cite •

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

WEPSC44

Beam Loss Monitoring System for the SKIF Synchrotron Light Source

operation, simulation, electron, diagnostics

426

Yu.I. Maltseva, A.D. Khilchenko, O.I. Meshkov, A.A. Morsina
BINP SB RAS, Novosibirsk, Russia
S.V. Ivanenko, E.A. Puryga
Budker Institute of Nuclear Physics, Novosibirsk, Russia
X.C. Ma
BINP, Novosibirsk, Russia
Yu.I. Maltseva, O.I. Meshkov
NSU, Novosibirsk, Russia
A.A. Morsina
NSTU, Novosibirsk, Russia

The Siberian ring source of photons (SKIF) is a new 3 GeV fourth-generation synchrotron light source being developed by the Budker Institute of Nuclear Physics (BINP). In order to ensure its reliable operation, beam loss diagnostics system is required. Two types of beam loss monitors will be installed at the SKIF: 5 fiber-based Cherenkov Beam Loss Monitors (CBLM) for the linac and transfer lines and 128 Scintillator-based Beam Loss Monitors (SBLM) for the storage ring. Sophisticated electronic equipment are employed to use these monitors at different SKIF operating modes. The article describes the design of the SKIF beam loss diagnostics system based on numerical simulations and experimental studies.

DOI •

reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-WEPSC44

About •

Received ※ 08 October 2021 — Accepted ※ 09 October 2021 — Issued ※ 18 October 2021

Cite •

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