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The Short Model Coil (SMC) dipole: an R&D program towards Nb$_{3}$Sn accelerator magnets
The Short Model Coil (SMC) assembly has been designed, as test bench for short racetrack coils wound with Nb$_{3}$Sn cable. The mechanical structure comprises an iron yoke surrounded by a 20 mm thick aluminium alloy shell, and includes four loading pads that transmit the required pre-compression fro...
Autores principales: | , , , , , , , , , , , , , |
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Formato: | info:eu-repo/semantics/article |
Lenguaje: | eng |
Publicado: |
2011
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Materias: | |
Acceso en línea: | http://cds.cern.ch/record/1450907 |
_version_ | 1780924924114763776 |
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author | Bajko, M Bordini, B Canfer, S Ellwood, G Feuvrier, J Guinchard, M Karppinen, M Kokkinos, C Manil, P Milanese, A Oberli, L Perez, J-C Regis, F de Rijk, G |
author_facet | Bajko, M Bordini, B Canfer, S Ellwood, G Feuvrier, J Guinchard, M Karppinen, M Kokkinos, C Manil, P Milanese, A Oberli, L Perez, J-C Regis, F de Rijk, G |
author_sort | Bajko, M |
collection | CERN |
description | The Short Model Coil (SMC) assembly has been designed, as test bench for short racetrack coils wound with Nb$_{3}$Sn cable. The mechanical structure comprises an iron yoke surrounded by a 20 mm thick aluminium alloy shell, and includes four loading pads that transmit the required pre-compression from the outer shell into the two coils. The outer shell is pre-tensioned with mechanical keys that are inserted with the help of pressurized bladders and two 30 mm diameter aluminium alloy rods provide the axial loading to the coil ends. The outer shell, the axial rods, and the coils are instrumented with strain gauges, which allow precise monitoring of the loading conditions during the assembly and at cryogenic temperature during the magnet test. Two SMC assemblies have been completed and cold tested in the frame of a European collaboration between CEA (FR), CERN and STFC (UK) and with the technical support from LBNL (US). This paper describes the main features of the SMC assembly, the experience from the dummy assemblies, the fabrication of the coils, and discusses the test results of the cold tests showing a peak field of 12.5 T at 1.9 K after training. |
format | info:eu-repo/semantics/article |
id | cern-1450907 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2011 |
record_format | invenio |
spelling | cern-14509072019-09-30T06:29:59Z http://cds.cern.ch/record/1450907 eng Bajko, M Bordini, B Canfer, S Ellwood, G Feuvrier, J Guinchard, M Karppinen, M Kokkinos, C Manil, P Milanese, A Oberli, L Perez, J-C Regis, F de Rijk, G The Short Model Coil (SMC) dipole: an R&D program towards Nb$_{3}$Sn accelerator magnets Accelerators and Storage Rings 7: Super-conducting High Field Magnets for higher luminosities and energies The Short Model Coil (SMC) assembly has been designed, as test bench for short racetrack coils wound with Nb$_{3}$Sn cable. The mechanical structure comprises an iron yoke surrounded by a 20 mm thick aluminium alloy shell, and includes four loading pads that transmit the required pre-compression from the outer shell into the two coils. The outer shell is pre-tensioned with mechanical keys that are inserted with the help of pressurized bladders and two 30 mm diameter aluminium alloy rods provide the axial loading to the coil ends. The outer shell, the axial rods, and the coils are instrumented with strain gauges, which allow precise monitoring of the loading conditions during the assembly and at cryogenic temperature during the magnet test. Two SMC assemblies have been completed and cold tested in the frame of a European collaboration between CEA (FR), CERN and STFC (UK) and with the technical support from LBNL (US). This paper describes the main features of the SMC assembly, the experience from the dummy assemblies, the fabrication of the coils, and discusses the test results of the cold tests showing a peak field of 12.5 T at 1.9 K after training. info:eu-repo/grantAgreement/EC/FP7/227579 info:eu-repo/semantics/openAccess Education Level info:eu-repo/semantics/article http://cds.cern.ch/record/1450907 2011 |
spellingShingle | Accelerators and Storage Rings 7: Super-conducting High Field Magnets for higher luminosities and energies Bajko, M Bordini, B Canfer, S Ellwood, G Feuvrier, J Guinchard, M Karppinen, M Kokkinos, C Manil, P Milanese, A Oberli, L Perez, J-C Regis, F de Rijk, G The Short Model Coil (SMC) dipole: an R&D program towards Nb$_{3}$Sn accelerator magnets |
title | The Short Model Coil (SMC) dipole: an R&D program towards Nb$_{3}$Sn accelerator magnets |
title_full | The Short Model Coil (SMC) dipole: an R&D program towards Nb$_{3}$Sn accelerator magnets |
title_fullStr | The Short Model Coil (SMC) dipole: an R&D program towards Nb$_{3}$Sn accelerator magnets |
title_full_unstemmed | The Short Model Coil (SMC) dipole: an R&D program towards Nb$_{3}$Sn accelerator magnets |
title_short | The Short Model Coil (SMC) dipole: an R&D program towards Nb$_{3}$Sn accelerator magnets |
title_sort | short model coil (smc) dipole: an r&d program towards nb$_{3}$sn accelerator magnets |
topic | Accelerators and Storage Rings 7: Super-conducting High Field Magnets for higher luminosities and energies |
url | http://cds.cern.ch/record/1450907 http://cds.cern.ch/record/1450907 |
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