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Examination and Characterization of Physical and Mechanical Properties of the ITER Central Solenoid Module Coils
The ITER Central Solenoid (CS) consists of a stack of six independent coil packs called modules. It features a total height of 18 m and a diameter of over 4 m. The modules are in an advanced stage of fabrication and testing by the US ITER Project Office (USIPO) and its subcontractor General Atomics...
Autores principales: | , , , , , , , , , , , , , |
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Lenguaje: | eng |
Publicado: |
2022
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Materias: | |
Acceso en línea: | https://dx.doi.org/10.1109/TASC.2022.3147732 http://cds.cern.ch/record/2805758 |
_version_ | 1780972951892393984 |
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author | Sgobba, Stefano Aviles Santillana, Ignacio Lourenço, Sandra Sophie Guinchard, Michael De Frutos, Oscar Sacristan Jong, Cornelis Libeyre, Paul Schild, Thierry Gaxiola, Enrique Bennet, José Mayri, Christophe Smith, John Everitt, David Freudenberg, Kevin |
author_facet | Sgobba, Stefano Aviles Santillana, Ignacio Lourenço, Sandra Sophie Guinchard, Michael De Frutos, Oscar Sacristan Jong, Cornelis Libeyre, Paul Schild, Thierry Gaxiola, Enrique Bennet, José Mayri, Christophe Smith, John Everitt, David Freudenberg, Kevin |
author_sort | Sgobba, Stefano |
collection | CERN |
description | The ITER Central Solenoid (CS) consists of a stack of six independent coil packs called modules. It features a total height of 18 m and a diameter of over 4 m. The modules are in an advanced stage of fabrication and testing by the US ITER Project Office (USIPO) and its subcontractor General Atomics (GA). A qualification module mockup at one to one scale but of reduced height was wound and Vacuum Pressure Impregnated (VPI) by GA to validate final manufacturing, using tooling and processes fully representative of a series module. The module was submitted to a thermal cycle down to the temperature of 4.5 K at which the coils will be cooled by supercritical helium. During plasma operation, the CS modules are subjected to a complex combination of static and dynamic forces. The understanding of the mechanical behaviour of the CS module coils is of paramount importance to analyse and predict the overall response of the CS stack. To this purpose, an extensive programme of investigation of the module mockup has been defined and applied. This allowed assessing, through examination and testing of a large number of VPI conductor array samples extracted from the mockup, the soundness of the coil through advanced non-destructive examination techniques including X-ray microtomography, dimensional metrology measurements and micro-optical observations. Moreover, additional testing of physical and mechanical properties carried out at room and cryogenic temperature allowed the behaviour of the conductor stacks to be assessed. The paper summarises the results of these investigations and their interpretation through mechanical analyses based on the individual properties of the coil constituents. |
id | cern-2805758 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2022 |
record_format | invenio |
spelling | cern-28057582023-03-29T09:04:11Zdoi:10.1109/TASC.2022.3147732http://cds.cern.ch/record/2805758engSgobba, StefanoAviles Santillana, IgnacioLourenço, Sandra SophieGuinchard, MichaelDe Frutos, Oscar SacristanJong, CornelisLibeyre, PaulSchild, ThierryGaxiola, EnriqueBennet, JoséMayri, ChristopheSmith, JohnEveritt, DavidFreudenberg, KevinExamination and Characterization of Physical and Mechanical Properties of the ITER Central Solenoid Module CoilsAccelerators and Storage RingsThe ITER Central Solenoid (CS) consists of a stack of six independent coil packs called modules. It features a total height of 18 m and a diameter of over 4 m. The modules are in an advanced stage of fabrication and testing by the US ITER Project Office (USIPO) and its subcontractor General Atomics (GA). A qualification module mockup at one to one scale but of reduced height was wound and Vacuum Pressure Impregnated (VPI) by GA to validate final manufacturing, using tooling and processes fully representative of a series module. The module was submitted to a thermal cycle down to the temperature of 4.5 K at which the coils will be cooled by supercritical helium. During plasma operation, the CS modules are subjected to a complex combination of static and dynamic forces. The understanding of the mechanical behaviour of the CS module coils is of paramount importance to analyse and predict the overall response of the CS stack. To this purpose, an extensive programme of investigation of the module mockup has been defined and applied. This allowed assessing, through examination and testing of a large number of VPI conductor array samples extracted from the mockup, the soundness of the coil through advanced non-destructive examination techniques including X-ray microtomography, dimensional metrology measurements and micro-optical observations. Moreover, additional testing of physical and mechanical properties carried out at room and cryogenic temperature allowed the behaviour of the conductor stacks to be assessed. The paper summarises the results of these investigations and their interpretation through mechanical analyses based on the individual properties of the coil constituents.oai:cds.cern.ch:28057582022 |
spellingShingle | Accelerators and Storage Rings Sgobba, Stefano Aviles Santillana, Ignacio Lourenço, Sandra Sophie Guinchard, Michael De Frutos, Oscar Sacristan Jong, Cornelis Libeyre, Paul Schild, Thierry Gaxiola, Enrique Bennet, José Mayri, Christophe Smith, John Everitt, David Freudenberg, Kevin Examination and Characterization of Physical and Mechanical Properties of the ITER Central Solenoid Module Coils |
title | Examination and Characterization of Physical and Mechanical Properties of the ITER Central Solenoid Module Coils |
title_full | Examination and Characterization of Physical and Mechanical Properties of the ITER Central Solenoid Module Coils |
title_fullStr | Examination and Characterization of Physical and Mechanical Properties of the ITER Central Solenoid Module Coils |
title_full_unstemmed | Examination and Characterization of Physical and Mechanical Properties of the ITER Central Solenoid Module Coils |
title_short | Examination and Characterization of Physical and Mechanical Properties of the ITER Central Solenoid Module Coils |
title_sort | examination and characterization of physical and mechanical properties of the iter central solenoid module coils |
topic | Accelerators and Storage Rings |
url | https://dx.doi.org/10.1109/TASC.2022.3147732 http://cds.cern.ch/record/2805758 |
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