RuPAC2021 - List of Keywords (sextupole)

Paper	Title	Other Keywords	Page
TUPSB08	Magneto-Optical Structure of the NICA Collider With High Critical Energy	quadrupole, dynamic-aperture, focusing, collider	245
	S.D. Kolokolchikov, V. Senichev RAS/INR, Moscow, Russia E. Syresin JINR, Dubna, Moscow Region, Russia
	In the proton option of the NICA collider, there is a problem of crossing transition energy. To do this, we have investigated ways to increase the critical energy for the proton option of the NICA collider. The method of superperiodic modulation of quadrupole gradients is applied. Two variants of dispersion suppression on the arch for matching with straight sections are considered. The selection of sextupoles is carried out to suppress the natural chromaticity and compensate for the sextupole component. The Twiss parameters for the proposed structures are given, as well as the dynamic apertures and working points are investigated.
	Poster TUPSB08 [3.646 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-TUPSB08
About •	Received ※ 17 September 2021 — Revised ※ 27 September 2021 — Accepted ※ 02 October 2021 — Issued ※ 21 October 2021
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUPSB35	3D Simulation Study and Optimization of Magnetic System of DECRIS Ion Source with the Pumping Frequency 28 GHz	solenoid, ECR, ion-source, operation	300
	V.M. Amoskov, E.I. Gapionok, V.P. Kukhtin, A.N. Labusov, E.A. Lamzin, A. Makarov, I.Yu. Rodin, A.V. Safonov, N. Shatil, D.B. Stepanov, E.R. Zapretilina NIIEFA, St. Petersburg, Russia S.L. Bogomolov, A.A. Efremov JINR, Dubna, Moscow Region, Russia S.E. Sytchevsky Saint Petersburg State University, Saint Petersburg, Russia
	A superconducting magnet system for a 28 GHz ECR ion source DECRIS-SC2 was studied in order to select its parameters and optimize performance. Parametric magnetic models were performed for two design configurations, conventional ("sextupole-in-solenoid") and reversed ("solenoid-in-sextupole"). In the "sextupole-in-solenoid" design the racetrack coils of the sextupole magnet used for radial plasma confinement are located inside the solenoids producing the axial field. In the "solenoid-in-sextupole" design the coils arrangement is reversed. For both configurations, electromagnetic effect the booster and the steel poles on the magnet performance was investigated from the point of view critical parameters of the system ¿ currents, fields, and forces. Results of the parametric computations were used to optimize the geometry and sizes of the magnet as well as the magnetic shield, the booster, and the poles. For better reliability and validation of the result, computations were performed with two magnetostatic codes, KOMPOT and KLONDIKE, utilizing the differential and integral formulations, respectively. A comparison of the obtained parameters was used to select the candidate magnet configuration for further design and manufacture.
DOI •	reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-TUPSB35
About •	Received ※ 28 September 2021 — Revised ※ 29 September 2021 — Accepted ※ 04 October 2021 — Issued ※ 18 October 2021
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEB03	First Experience of Production and Testing the Superconducting Quadrupole and Corrector Magnets for the SIS100 Heavy Ion Accelerator of FAIR	quadrupole, dipole, operation, synchrotron	75
	E.S. Fischer, Yu.G. Bespalov, T. Parfylo JINR/VBLHEP, Dubna, Moscow region, Russia A. Bleile, A. Waldt GSI, Darmstadt, Germany V.V. Borisov, H.G. Khodzhibagiyan, B.Yu. Kondratiev, D. Nikiforov, M.V. Petrov JINR, Dubna, Moscow Region, Russia
	The fast cycling superconducting SIS100 heavy ion accelerator is the designated working horse of the international Facility for Antiproton and Ion Research (FAIR) under construction at GSI in Darmstadt, Germany. The main dipoles will ramp with 4 T/s and with a repetition frequency of 1 Hz up to a maximum magnetic field of 1.9 T. The field gradient of the main quadrupole will reach 27.77 T/m. The integral magnetic field length of the horizontal/vertical steerer and of the chromaticity sextupole corrector magnets will provide 0.403/0.41 m and 0.383 m, respectively. The series production of the high current quadrupoles and of the individually ramped low current corrector magnets was started in 2020 at the JINR in Dubna and is planned to be completed in 2023. We present the technological challenges that have to be solved from production of the first magnets toward a stable and high rate series production with reliably magnet quality as well as the first test results at operation conditions.
	Slides WEB03 [18.411 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-WEB03
About •	Received ※ 07 October 2021 — Revised ※ 08 October 2021 — Accepted ※ 13 October 2021 — Issued ※ 19 October 2021
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEPSC20	Magnets Design for 2.5 GeV Booster Synchrotron	HOM, dipole, 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

Other Keywords

Page

TUPSB08

Magneto-Optical Structure of the NICA Collider With High Critical Energy

quadrupole, dynamic-aperture, focusing, collider

245

S.D. Kolokolchikov, V. Senichev
RAS/INR, Moscow, Russia
E. Syresin
JINR, Dubna, Moscow Region, Russia

In the proton option of the NICA collider, there is a problem of crossing transition energy. To do this, we have investigated ways to increase the critical energy for the proton option of the NICA collider. The method of superperiodic modulation of quadrupole gradients is applied. Two variants of dispersion suppression on the arch for matching with straight sections are considered. The selection of sextupoles is carried out to suppress the natural chromaticity and compensate for the sextupole component. The Twiss parameters for the proposed structures are given, as well as the dynamic apertures and working points are investigated.

Poster TUPSB08 [3.646 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-TUPSB08

About •

Received ※ 17 September 2021 — Revised ※ 27 September 2021 — Accepted ※ 02 October 2021 — Issued ※ 21 October 2021

Cite •

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

TUPSB35

3D Simulation Study and Optimization of Magnetic System of DECRIS Ion Source with the Pumping Frequency 28 GHz

solenoid, ECR, ion-source, operation

300

V.M. Amoskov, E.I. Gapionok, V.P. Kukhtin, A.N. Labusov, E.A. Lamzin, A. Makarov, I.Yu. Rodin, A.V. Safonov, N. Shatil, D.B. Stepanov, E.R. Zapretilina
NIIEFA, St. Petersburg, Russia
S.L. Bogomolov, A.A. Efremov
JINR, Dubna, Moscow Region, Russia
S.E. Sytchevsky
Saint Petersburg State University, Saint Petersburg, Russia

A superconducting magnet system for a 28 GHz ECR ion source DECRIS-SC2 was studied in order to select its parameters and optimize performance. Parametric magnetic models were performed for two design configurations, conventional ("sextupole-in-solenoid") and reversed ("solenoid-in-sextupole"). In the "sextupole-in-solenoid" design the racetrack coils of the sextupole magnet used for radial plasma confinement are located inside the solenoids producing the axial field. In the "solenoid-in-sextupole" design the coils arrangement is reversed. For both configurations, electromagnetic effect the booster and the steel poles on the magnet performance was investigated from the point of view critical parameters of the system ¿ currents, fields, and forces. Results of the parametric computations were used to optimize the geometry and sizes of the magnet as well as the magnetic shield, the booster, and the poles. For better reliability and validation of the result, computations were performed with two magnetostatic codes, KOMPOT and KLONDIKE, utilizing the differential and integral formulations, respectively. A comparison of the obtained parameters was used to select the candidate magnet configuration for further design and manufacture.

DOI •

reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-TUPSB35

About •

Received ※ 28 September 2021 — Revised ※ 29 September 2021 — Accepted ※ 04 October 2021 — Issued ※ 18 October 2021

Cite •

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

WEB03

First Experience of Production and Testing the Superconducting Quadrupole and Corrector Magnets for the SIS100 Heavy Ion Accelerator of FAIR

quadrupole, dipole, operation, synchrotron

75

E.S. Fischer, Yu.G. Bespalov, T. Parfylo
JINR/VBLHEP, Dubna, Moscow region, Russia
A. Bleile, A. Waldt
GSI, Darmstadt, Germany
V.V. Borisov, H.G. Khodzhibagiyan, B.Yu. Kondratiev, D. Nikiforov, M.V. Petrov
JINR, Dubna, Moscow Region, Russia

The fast cycling superconducting SIS100 heavy ion accelerator is the designated working horse of the international Facility for Antiproton and Ion Research (FAIR) under construction at GSI in Darmstadt, Germany. The main dipoles will ramp with 4 T/s and with a repetition frequency of 1 Hz up to a maximum magnetic field of 1.9 T. The field gradient of the main quadrupole will reach 27.77 T/m. The integral magnetic field length of the horizontal/vertical steerer and of the chromaticity sextupole corrector magnets will provide 0.403/0.41 m and 0.383 m, respectively. The series production of the high current quadrupoles and of the individually ramped low current corrector magnets was started in 2020 at the JINR in Dubna and is planned to be completed in 2023. We present the technological challenges that have to be solved from production of the first magnets toward a stable and high rate series production with reliably magnet quality as well as the first test results at operation conditions.

Slides WEB03 [18.411 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-WEB03

About •

Received ※ 07 October 2021 — Revised ※ 08 October 2021 — Accepted ※ 13 October 2021 — Issued ※ 19 October 2021

Cite •

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

WEPSC20

Magnets Design for 2.5 GeV Booster Synchrotron

HOM, dipole, 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)