IPAC2015 - List of Keywords (magnet-design)

Paper	Title	Other Keywords	Page
MOAD3	Relative Alignment Within the MAX IV 3 GeV Storage Ring Magnet Blocks	alignment, storage-ring, synchrotron, quadrupole	57
	J.H. Björklund Svensson, M.A.G. Johansson MAX-lab, Lund, Sweden
	Unlike the discrete magnet scheme of previous 3rd generation light sources, the magnet elements of the MAX IV storage rings are integrated in precision-machined magnet blocks. By analyzing the rotating coil measurements made by the magnet suppliers, we determined the relative alignment between consecutive magnet elements, which was found to be <10 microns RMS for all magnet block types in both horizontal and vertical direction. This article presents our analysis and results for the full magnet production series.
	Slides MOAD3 [1.825 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-MOAD3
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MOPTY033	Fast Kicker	kicker, impedance, simulation, vacuum	1001
	V.V. Gambaryan, A.A. Starostenko BINP SB RAS, Novosibirsk, Russia
	Pulsed deflecting magnet project was worked out in BINP. The kicker design task is: impulsive force value is 1 mT*m, pulse edge is 5 ns, and impulse duration is about 200 ns. The unconventional approach to kicker design was offered. The possibility for set of wires using instead of plates using is considered. This approach allows us to reduce the effective plate surface. In this case we can decrease effects related to induced charges and currents. In the result of modelling optimal construction was developed. It includes 6 wires. The magnet aperture is about 5 cm. Calculated field rise time (about 1.5 ns) satisfies the conditions. Induced current effect reducing idea was confirmed. For configuration with 3 wires pair (with cross section of 2 mm) induced current in one wire is about 10% and in the wall is about 40%. However for design with plates current is about 40% and 20% respectively. Obtained magnet construction allows controlling of high field homogeneity by changing currents magnitudes in wires. In general we demonstrated the method of field optimization. Optimal kicker design was obtained. Wires using idea was substantiated.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-MOPTY033
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TUPWI001	Turnkey Systems Cost Optimization by Iterative Design of Magnets and Power Supplies	quadrupole, power-supply, optics, target	2239
	M. Cavellier, W. Beeckman, F. Forest, J.D. Holzmann Sigmaphi, Vannes, France
	For more than 30 years, Sigmaphi has been manufacturing magnets and power supplies. Its teams are now able to supply a complete particle beam line, from beam optics calculation to on-site installation and alignment. These combined skills allow design optimization for turnkey systems in order to reduce their purchasing and running costs. An example of successful iterative design is presented: a 70 meters beam line designed, manufactured and installed by Sigmaphi for JINR in Dubna, Russia. This design optimization allowed reducing total power consumption of the 14 quadrupoles by 7.5%.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-TUPWI001
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WEPTY003	Magnet Designs for the Multi-bend Achromat Lattice at the Advanced Photon Source	dipole, quadrupole, sextupole, lattice	3260
	M.S. Jaski, J. Liu ANL, Argonne, Ilinois, USA D.J. Harding, V.S. Kashikhin, M.L. Lopes Fermilab, Batavia, Illinois, USA A.K. Jain, C.J. Spataro BNL, Upton, Long Island, New York, USA
	Funding: Work supported by the U.S. Department of Energy, Office of Science, under Contract No. DE-AC02-06CH11357. The Advanced Photon Source (APS) is currently investigating replacing the existing two-bend 7 GeV lattice with a 6 GeV seven-bend achromat magnet lattice in order to achieve a low electron beam emittance. This new lattice requires 1320 magnets, of which there are nine types. These include high strength quadrupoles (gradient up to ~97 T/m), sextupoles with second derivative of field up to ~7000 T/m2, longitudinal gradient dipoles with field ratio of up to 5, and transverse gradient dipoles with gradients of ~50 T/m and central field of ~0.6 T. These field requirements and the limited space available pose several design challenges. This paper presents a summary of magnet designs for the various magnet types developed through a collaboration of APS with FNAL and BNL.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-WEPTY003
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WEPTY040	Quench Performance of the First Twin-aperture 11 T Dipole for LHC upgrades	dipole, status, collimation, detector	3361
	A.V. Zlobin, N. Andreev, G. Apollinari, E.Z. Barzi, G. Chlachidze, A. Nobrega, I. Novitski, S. Stoynev, D. Turrioni Fermilab, Batavia, Illinois, USA B. Auchmann, S. Izquierdo Bermudez, M. Karppinen, L. Rossi, F. Savary, D. Smekens CERN, Geneva, Switzerland
	Funding: *Work is supported by Fermi Research Alliance, LLC, under contract No. DE-AC02-07CH11359 with the U.S. Department of Energy and European Commission under FP7 project HiLumi LHC, GA no.284404 The LHC luminosity upgrade plan foresees installation of additional collimators in Dispersion Suppressor areas around point 7 and interaction regions 1, 2 and 5. The required space for these collimators could be provided by replacing some 15-m long 8.33 T NbTi LHC main dipoles (MB) with shorter 11 T Nb3Sn dipoles (MBH) compatible with the LHC lattice and main systems. FNAL and CERN magnet groups are developing a 5.5-m long twin-aperture dipole prototype with the nominal field of 11 T at the LHC nominal current of 11.85 kA suitable for installation in the LHC. Two of these magnets with a collimator in between will replace one MB dipole. The single-aperture 2-m long dipole demonstrator and two 1-m long dipole models have been assembled and tested at FNAL in 2012-2014. The 1 m long collared coils were then assembled into the first twin-aperture Nb3Sn demonstrator dipole and tested. This paper reports test results of the first twin-aperture Nb3Sn dipole model focusing on magnet training, ramp rate sensitivity and temperature dependence of the magnet quench current. The twin-aperture dipole quench performance is compared with the data for the single-aperture models.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-WEPTY040
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WEPTY041	DESIGN CONCEPT AND PARAMETERS OF A 15 T Nb3Sn DIPOLE DEMONSTRATOR FOR A 100 TEV HADRON COLLIDER	dipole, collider, hadron, controls	3365
	A.V. Zlobin, N. Andreev, E.Z. Barzi, V.V. Kashikhin, I. Novitski Fermilab, Batavia, Illinois, USA
	Funding: *Work is supported by Fermi Research Alliance, LLC, under contract No. DE-AC02-07CH11359 with the U.S. Department of Energy Hadron Colliders (HC) are the most powerful discovery tools in modern high energy physics. A 100 TeV HC in a ~100 km tunnel with a nominal operation field of ~15 T is being considered for the post-LHC era. The choice of a 15 T nominal field requires using the Nb3Sn technology. Practical demonstration of this field level in an accelerator-quality magnet and substantial reduction of magnet costs are key conditions for the realization of such a machine. FNAL has started the development of a 15 T Nb3Sn dipole demonstrator for a 100 TeV HC. As a first step in this direction, the existing 11 T dipole magnet, developed for LHC upgrades, will be modified by adding two layers to achieve the nominal field of 15 T in a 60 mm aperture. As the next step, to increase the field margin the innermost 2-layer coil will be replaced with an optimized coil using the conductor grading approach. This paper describes the design concept and parameters of the 15 T Nb3Sn dipole demonstrators. Magnetic, mechanical and quench protection issues are discussed.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-WEPTY041
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WEPWI053	HTS/lTS Hybrid High Field Superconducting Magnet Designs for the Proposed 100 TeV Proton Colliders	dipole, proton, collider, superconductivity	3609
	R.C. Gupta, M. Anerella, A.K. Ghosh, W. Sampson, J. Schmalzle BNL, Upton, Long Island, New York, USA J. Kolonko, D. Larson, R.M. Scanlan, R.J. Weggel, E. Willen Particle Beam Lasers, Inc., Northridge, California, USA C.M. Rey e2P, Knoxville, USA
	Funding: Work supported by Brookhaven Science Associates, LLC under contract Number DE-SC0012704, with the U.S. Department of Energy and STTR contract DOE Grant Number DE-SC0011348. Proposed proton-proton colliders with a center-of-mass energy up to 100 TeV in a tunnel of desired size require the dipole magnets to be of very high field–20 teslas in some proposals. This field is beyond the limit of present conventional Low Temperature Superconductors (LTS) and requires using High Temperature Superconductors (HTS). The preliminary magnetic design presented in this paper is an HTS/LTS hybrid design with high strength HTS tape used in higher field regions and less expensive LTS in lower field regions, with a goal of optimizing the performance while reducing the cost. A major concern in the magnets built with the HTS tape is the large field errors associated with the conductor magnetization. The strategy presented here aims to reduce those errors considerably. This paper also presents a proof-of-principle design and program to experimentally evaluate that concept.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-WEPWI053
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Other Keywords

Page

MOAD3

Relative Alignment Within the MAX IV 3 GeV Storage Ring Magnet Blocks

alignment, storage-ring, synchrotron, quadrupole

57

J.H. Björklund Svensson, M.A.G. Johansson
MAX-lab, Lund, Sweden

Unlike the discrete magnet scheme of previous 3rd generation light sources, the magnet elements of the MAX IV storage rings are integrated in precision-machined magnet blocks. By analyzing the rotating coil measurements made by the magnet suppliers, we determined the relative alignment between consecutive magnet elements, which was found to be <10 microns RMS for all magnet block types in both horizontal and vertical direction. This article presents our analysis and results for the full magnet production series.

Slides MOAD3 [1.825 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-MOAD3

Export •

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

MOPTY033

Fast Kicker

kicker, impedance, simulation, vacuum

1001

V.V. Gambaryan, A.A. Starostenko
BINP SB RAS, Novosibirsk, Russia

Pulsed deflecting magnet project was worked out in BINP. The kicker design task is: impulsive force value is 1 mT*m, pulse edge is 5 ns, and impulse duration is about 200 ns. The unconventional approach to kicker design was offered. The possibility for set of wires using instead of plates using is considered. This approach allows us to reduce the effective plate surface. In this case we can decrease effects related to induced charges and currents. In the result of modelling optimal construction was developed. It includes 6 wires. The magnet aperture is about 5 cm. Calculated field rise time (about 1.5 ns) satisfies the conditions. Induced current effect reducing idea was confirmed. For configuration with 3 wires pair (with cross section of 2 mm) induced current in one wire is about 10% and in the wall is about 40%. However for design with plates current is about 40% and 20% respectively. Obtained magnet construction allows controlling of high field homogeneity by changing currents magnitudes in wires. In general we demonstrated the method of field optimization. Optimal kicker design was obtained. Wires using idea was substantiated.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-MOPTY033

Export •

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

TUPWI001

Turnkey Systems Cost Optimization by Iterative Design of Magnets and Power Supplies

quadrupole, power-supply, optics, target

2239

M. Cavellier, W. Beeckman, F. Forest, J.D. Holzmann
Sigmaphi, Vannes, France

For more than 30 years, Sigmaphi has been manufacturing magnets and power supplies. Its teams are now able to supply a complete particle beam line, from beam optics calculation to on-site installation and alignment. These combined skills allow design optimization for turnkey systems in order to reduce their purchasing and running costs. An example of successful iterative design is presented: a 70 meters beam line designed, manufactured and installed by Sigmaphi for JINR in Dubna, Russia. This design optimization allowed reducing total power consumption of the 14 quadrupoles by 7.5%.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-TUPWI001

Export •

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

WEPTY003

Magnet Designs for the Multi-bend Achromat Lattice at the Advanced Photon Source

dipole, quadrupole, sextupole, lattice

3260

M.S. Jaski, J. Liu
ANL, Argonne, Ilinois, USA
D.J. Harding, V.S. Kashikhin, M.L. Lopes
Fermilab, Batavia, Illinois, USA
A.K. Jain, C.J. Spataro
BNL, Upton, Long Island, New York, USA

Funding: Work supported by the U.S. Department of Energy, Office of Science, under Contract No. DE-AC02-06CH11357.
The Advanced Photon Source (APS) is currently investigating replacing the existing two-bend 7 GeV lattice with a 6 GeV seven-bend achromat magnet lattice in order to achieve a low electron beam emittance. This new lattice requires 1320 magnets, of which there are nine types. These include high strength quadrupoles (gradient up to ~97 T/m), sextupoles with second derivative of field up to ~7000 T/m2, longitudinal gradient dipoles with field ratio of up to 5, and transverse gradient dipoles with gradients of ~50 T/m and central field of ~0.6 T. These field requirements and the limited space available pose several design challenges. This paper presents a summary of magnet designs for the various magnet types developed through a collaboration of APS with FNAL and BNL.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-WEPTY003

Export •

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

WEPTY040

Quench Performance of the First Twin-aperture 11 T Dipole for LHC upgrades

dipole, status, collimation, detector

3361

A.V. Zlobin, N. Andreev, G. Apollinari, E.Z. Barzi, G. Chlachidze, A. Nobrega, I. Novitski, S. Stoynev, D. Turrioni
Fermilab, Batavia, Illinois, USA
B. Auchmann, S. Izquierdo Bermudez, M. Karppinen, L. Rossi, F. Savary, D. Smekens
CERN, Geneva, Switzerland

Funding: *Work is supported by Fermi Research Alliance, LLC, under contract No. DE-AC02-07CH11359 with the U.S. Department of Energy and European Commission under FP7 project HiLumi LHC, GA no.284404
The LHC luminosity upgrade plan foresees installation of additional collimators in Dispersion Suppressor areas around point 7 and interaction regions 1, 2 and 5. The required space for these collimators could be provided by replacing some 15-m long 8.33 T NbTi LHC main dipoles (MB) with shorter 11 T Nb3Sn dipoles (MBH) compatible with the LHC lattice and main systems. FNAL and CERN magnet groups are developing a 5.5-m long twin-aperture dipole prototype with the nominal field of 11 T at the LHC nominal current of 11.85 kA suitable for installation in the LHC. Two of these magnets with a collimator in between will replace one MB dipole. The single-aperture 2-m long dipole demonstrator and two 1-m long dipole models have been assembled and tested at FNAL in 2012-2014. The 1 m long collared coils were then assembled into the first twin-aperture Nb3Sn demonstrator dipole and tested. This paper reports test results of the first twin-aperture Nb3Sn dipole model focusing on magnet training, ramp rate sensitivity and temperature dependence of the magnet quench current. The twin-aperture dipole quench performance is compared with the data for the single-aperture models.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-WEPTY040

Export •

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

WEPTY041

DESIGN CONCEPT AND PARAMETERS OF A 15 T Nb3Sn DIPOLE DEMONSTRATOR FOR A 100 TEV HADRON COLLIDER

dipole, collider, hadron, controls

3365

A.V. Zlobin, N. Andreev, E.Z. Barzi, V.V. Kashikhin, I. Novitski
Fermilab, Batavia, Illinois, USA

Funding: *Work is supported by Fermi Research Alliance, LLC, under contract No. DE-AC02-07CH11359 with the U.S. Department of Energy
Hadron Colliders (HC) are the most powerful discovery tools in modern high energy physics. A 100 TeV HC in a ~100 km tunnel with a nominal operation field of ~15 T is being considered for the post-LHC era. The choice of a 15 T nominal field requires using the Nb3Sn technology. Practical demonstration of this field level in an accelerator-quality magnet and substantial reduction of magnet costs are key conditions for the realization of such a machine. FNAL has started the development of a 15 T Nb3Sn dipole demonstrator for a 100 TeV HC. As a first step in this direction, the existing 11 T dipole magnet, developed for LHC upgrades, will be modified by adding two layers to achieve the nominal field of 15 T in a 60 mm aperture. As the next step, to increase the field margin the innermost 2-layer coil will be replaced with an optimized coil using the conductor grading approach. This paper describes the design concept and parameters of the 15 T Nb3Sn dipole demonstrators. Magnetic, mechanical and quench protection issues are discussed.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-WEPTY041

Export •

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

WEPWI053

HTS/lTS Hybrid High Field Superconducting Magnet Designs for the Proposed 100 TeV Proton Colliders

dipole, proton, collider, superconductivity

3609

R.C. Gupta, M. Anerella, A.K. Ghosh, W. Sampson, J. Schmalzle
BNL, Upton, Long Island, New York, USA
J. Kolonko, D. Larson, R.M. Scanlan, R.J. Weggel, E. Willen
Particle Beam Lasers, Inc., Northridge, California, USA
C.M. Rey
e2P, Knoxville, USA

Funding: Work supported by Brookhaven Science Associates, LLC under contract Number DE-SC0012704, with the U.S. Department of Energy and STTR contract DOE Grant Number DE-SC0011348.
Proposed proton-proton colliders with a center-of-mass energy up to 100 TeV in a tunnel of desired size require the dipole magnets to be of very high field–20 teslas in some proposals. This field is beyond the limit of present conventional Low Temperature Superconductors (LTS) and requires using High Temperature Superconductors (HTS). The preliminary magnetic design presented in this paper is an HTS/LTS hybrid design with high strength HTS tape used in higher field regions and less expensive LTS in lower field regions, with a goal of optimizing the performance while reducing the cost. A major concern in the magnets built with the HTS tape is the large field errors associated with the conductor magnetization. The strategy presented here aims to reduce those errors considerably. This paper also presents a proof-of-principle design and program to experimentally evaluate that concept.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-WEPWI053

Export •

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