Preload Characterization of Short Models of MQXF the Nb 3 Sn Low-β Quadrupole for the Hi-Lumi LHC
Abstract
MQXF is the Nb3Sn Low-β Quadrupole magnet that the HL-LHC project is planning to install in the LHC interaction regions in 2026 as part of an upgrade to increase the LHC inte-grated luminosity by about a factor of ten. The magnet will be fab-ricated in two different lengths: 4.2 m for MQXFA, built in the US by the Accelerator Upgrade Project (AUP), and 7.15 m for MQXFB, fabricated by CERN. In order to qualify the magnet de-sign and characterize its performance with different conductors, cable geometries and pre-load configuration, five short model magnets, called MQXFS, were fabricated, assembled and tested. The latest model, MQXFS6, uses a new powder-in-tube (PIT) su-perconducting wire, featuring a bundle barrier surrounding the filaments. The coil and the support structure were equipped with strain gauges and optical fibres to monitor strain during assembly, cool-down and excitation. In this paper we further develop the conventional azimuthal preload analysis and introduce a new set of tools for MQXF coil pack characterization which we use to an-alyse the behaviour of MQXFS6 room temperature preload and to reanalyse all the short models tested at CERN. A comparison is made between all the studied magnets revealing new characteriz-ing preload parameters.
- Authors:
-
[1];
[2];
[1];
[3];
[1];
[1];
[1];
[3];
[3];
[3];
[2]
- European Organization for Nuclear Research (CERN), Geneva (Switzerland)
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Publication Date:
- Research Org.:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- OSTI Identifier:
- 1606209
- Report Number(s):
- FERMILAB-PUB-20-119-TD
Journal ID: ISSN 1051-8223; oai:inspirehep.net:1788088; TRN: US2104482
- Grant/Contract Number:
- AC02-07CH11359
- Resource Type:
- Accepted Manuscript
- Journal Name:
- IEEE Transactions on Applied Superconductivity
- Additional Journal Information:
- Journal Volume: 30; Journal Issue: 4; Journal ID: ISSN 1051-8223
- Publisher:
- Institute of Electrical and Electronics Engineers (IEEE)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 43 PARTICLE ACCELERATORS
Citation Formats
Takala, Eelis, Ambrosio, Giorgio, Bourcey, Nicolas, Cheng, Daniel W., Ferracin, Paolo, Guinchard, Michael, Bermudez, Susana Izquierdo, Mangiarotti, Franco, Pan, Heng, Perez, Juan Carlos, Prestemon, Soren, Vallone, Giorgio, and Strauss, Thomas. Preload Characterization of Short Models of MQXF the Nb 3 Sn Low-β Quadrupole for the Hi-Lumi LHC. United States: N. p., 2020.
Web. doi:10.1109/TASC.2020.2973119.
Takala, Eelis, Ambrosio, Giorgio, Bourcey, Nicolas, Cheng, Daniel W., Ferracin, Paolo, Guinchard, Michael, Bermudez, Susana Izquierdo, Mangiarotti, Franco, Pan, Heng, Perez, Juan Carlos, Prestemon, Soren, Vallone, Giorgio, & Strauss, Thomas. Preload Characterization of Short Models of MQXF the Nb 3 Sn Low-β Quadrupole for the Hi-Lumi LHC. United States. https://doi.org/10.1109/TASC.2020.2973119
Takala, Eelis, Ambrosio, Giorgio, Bourcey, Nicolas, Cheng, Daniel W., Ferracin, Paolo, Guinchard, Michael, Bermudez, Susana Izquierdo, Mangiarotti, Franco, Pan, Heng, Perez, Juan Carlos, Prestemon, Soren, Vallone, Giorgio, and Strauss, Thomas. Mon .
"Preload Characterization of Short Models of MQXF the Nb 3 Sn Low-β Quadrupole for the Hi-Lumi LHC". United States. https://doi.org/10.1109/TASC.2020.2973119. https://www.osti.gov/servlets/purl/1606209.
@article{osti_1606209,
title = {Preload Characterization of Short Models of MQXF the Nb 3 Sn Low-β Quadrupole for the Hi-Lumi LHC},
author = {Takala, Eelis and Ambrosio, Giorgio and Bourcey, Nicolas and Cheng, Daniel W. and Ferracin, Paolo and Guinchard, Michael and Bermudez, Susana Izquierdo and Mangiarotti, Franco and Pan, Heng and Perez, Juan Carlos and Prestemon, Soren and Vallone, Giorgio and Strauss, Thomas},
abstractNote = {MQXF is the Nb3Sn Low-β Quadrupole magnet that the HL-LHC project is planning to install in the LHC interaction regions in 2026 as part of an upgrade to increase the LHC inte-grated luminosity by about a factor of ten. The magnet will be fab-ricated in two different lengths: 4.2 m for MQXFA, built in the US by the Accelerator Upgrade Project (AUP), and 7.15 m for MQXFB, fabricated by CERN. In order to qualify the magnet de-sign and characterize its performance with different conductors, cable geometries and pre-load configuration, five short model magnets, called MQXFS, were fabricated, assembled and tested. The latest model, MQXFS6, uses a new powder-in-tube (PIT) su-perconducting wire, featuring a bundle barrier surrounding the filaments. The coil and the support structure were equipped with strain gauges and optical fibres to monitor strain during assembly, cool-down and excitation. In this paper we further develop the conventional azimuthal preload analysis and introduce a new set of tools for MQXF coil pack characterization which we use to an-alyse the behaviour of MQXFS6 room temperature preload and to reanalyse all the short models tested at CERN. A comparison is made between all the studied magnets revealing new characteriz-ing preload parameters.},
doi = {10.1109/TASC.2020.2973119},
journal = {IEEE Transactions on Applied Superconductivity},
number = 4,
volume = 30,
place = {United States},
year = {Mon Jun 01 00:00:00 EDT 2020},
month = {Mon Jun 01 00:00:00 EDT 2020}
}
Search WorldCat to find libraries that may hold this journalWeb of Science