Magnetic Measurements and Analysis of the First 11-T Nb$_{3}$Sn Dipole Models Developed at CERN for HL-LHC

The high-luminosity upgrade for the LHC (HL-LHC) envisages the replacement of some 15-m-long NbTi dipoles in the dispersion suppressor area by shorter Nb_3Sn magnets with a nominal field of 11 T. The new magnets must be compatible with the lattice and other main systems of the LHC. The shorter lengt...

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Detalles Bibliográficos
Autores principales: Fiscarelli, L, Auchmann, B, Izquierdo Bermudez, S, Bordini, B, Dunkel, O, Karppinen, M, Loffler, C, Russenschuck, S, Savary, F, Smekens, D, Willering, G
Lenguaje:eng
Publicado: 2016
Materias:
Accelerators and Storage Rings
Acceso en línea:https://dx.doi.org/10.1109/TASC.2016.2530743
http://cds.cern.ch/record/2261466
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author Fiscarelli, L
Auchmann, B
Izquierdo Bermudez, S
Bordini, B
Dunkel, O
Karppinen, M
Loffler, C
Russenschuck, S
Savary, F
Smekens, D
Willering, G
author_facet Fiscarelli, L
Auchmann, B
Izquierdo Bermudez, S
Bordini, B
Dunkel, O
Karppinen, M
Loffler, C
Russenschuck, S
Savary, F
Smekens, D
Willering, G
author_sort Fiscarelli, L
collection CERN
description The high-luminosity upgrade for the LHC (HL-LHC) envisages the replacement of some 15-m-long NbTi dipoles in the dispersion suppressor area by shorter Nb_3Sn magnets with a nominal field of 11 T. The new magnets must be compatible with the lattice and other main systems of the LHC. The shorter length of new units will allow the installation of collimators. The successful use of the Nb_3Sn technology requires an intense R&D; program, and therefore, a CERN-Fermilab joint development program was established. This paper describes the magnetic measurement procedure and presents the analysis of the magnetic measurements on the first 2-m-long single-aperture demonstrators built and tested at CERN. The geometrical field multipoles, the iron saturation effects, and the effects of persistent currents are presented. The experimental data are compared with the magnetic calculations using the CERN field computation program ROXIE and are discussed in view of the requirements for machine operation.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2016
record_format invenio
spelling oai-inspirehep.net-14793642019-09-30T06:29:59Zdoi:10.1109/TASC.2016.2530743http://cds.cern.ch/record/2261466engFiscarelli, LAuchmann, BIzquierdo Bermudez, SBordini, BDunkel, OKarppinen, MLoffler, CRussenschuck, SSavary, FSmekens, DWillering, GMagnetic Measurements and Analysis of the First 11-T Nb$_{3}$Sn Dipole Models Developed at CERN for HL-LHCAccelerators and Storage RingsThe high-luminosity upgrade for the LHC (HL-LHC) envisages the replacement of some 15-m-long NbTi dipoles in the dispersion suppressor area by shorter Nb_3Sn magnets with a nominal field of 11 T. The new magnets must be compatible with the lattice and other main systems of the LHC. The shorter length of new units will allow the installation of collimators. The successful use of the Nb_3Sn technology requires an intense R&D; program, and therefore, a CERN-Fermilab joint development program was established. This paper describes the magnetic measurement procedure and presents the analysis of the magnetic measurements on the first 2-m-long single-aperture demonstrators built and tested at CERN. The geometrical field multipoles, the iron saturation effects, and the effects of persistent currents are presented. The experimental data are compared with the magnetic calculations using the CERN field computation program ROXIE and are discussed in view of the requirements for machine operation.oai:inspirehep.net:14793642016
spellingShingle Accelerators and Storage Rings
Fiscarelli, L
Auchmann, B
Izquierdo Bermudez, S
Bordini, B
Dunkel, O
Karppinen, M
Loffler, C
Russenschuck, S
Savary, F
Smekens, D
Willering, G
Magnetic Measurements and Analysis of the First 11-T Nb$_{3}$Sn Dipole Models Developed at CERN for HL-LHC
title Magnetic Measurements and Analysis of the First 11-T Nb$_{3}$Sn Dipole Models Developed at CERN for HL-LHC
title_full Magnetic Measurements and Analysis of the First 11-T Nb$_{3}$Sn Dipole Models Developed at CERN for HL-LHC
title_fullStr Magnetic Measurements and Analysis of the First 11-T Nb$_{3}$Sn Dipole Models Developed at CERN for HL-LHC
title_full_unstemmed Magnetic Measurements and Analysis of the First 11-T Nb$_{3}$Sn Dipole Models Developed at CERN for HL-LHC
title_short Magnetic Measurements and Analysis of the First 11-T Nb$_{3}$Sn Dipole Models Developed at CERN for HL-LHC
title_sort magnetic measurements and analysis of the first 11-t nb$_{3}$sn dipole models developed at cern for hl-lhc
topic Accelerators and Storage Rings
url https://dx.doi.org/10.1109/TASC.2016.2530743
http://cds.cern.ch/record/2261466
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