Fabrication and Assembly Performance of the First 4.2 m MQXFA Magnet and Mechanical Model for the Hi-Lumi LHC Upgrade

Cheng, Daniel W.; Ambrosio, Giorgio; Anderssen, Eric C.; Bourcey, Nicolas; Felice, Helene; Ferracin, Paolo; Grosclaude, Philippe; Guinchard, Michael; Perez, Juan Carlos; Pan, Heng; Prestemon, Soren O.; Vallone, Giorgio

doi:10.1109/TASC.2018.2799563

Title: Fabrication and Assembly Performance of the First 4.2 m MQXFA Magnet and Mechanical Model for the Hi-Lumi LHC Upgrade

Abstract

© 2018 IEEE. The LHC accelerator research program (LARP), in collaboration with CERN and under the scope of the high luminosity upgrade of the Large Hadron Collider, is in the prototyping stage in the development of a 150 mm aperture high-field Nb3Sn quadrupole magnet called MQXF. This magnet is mechanically supported using a shell-based support structure, which has been extensively demonstrated on several R&D models within LARP, as well as in the more recent short (1.2 m magnetic length) MQXF model program. The MQXFA magnets are each 4.2 m magnetic length, and the first mechanical long model, MQXFA1M (using aluminum surrogate coils), and MQXFAP1 prototype magnet (the first prototype with Nb3Sn coils) have been assembled at the LBNL. In this paper, we summarize the tooling and the assembly processes, and discuss the mechanical performance of these first two assemblies, comparing strain gauge data with finite element model analysis, as well as the near-term plans for the long MQXF magnet program.

Authors:

^[1]; Ambrosio, Giorgio ^[2]; Anderssen, Eric C. ^[1]; Bourcey, Nicolas ^[3];

^[4]; Ferracin, Paolo ^[3]; Grosclaude, Philippe ^[3]; Guinchard, Michael ^[3]; Perez, Juan Carlos ^[3]; Pan, Heng ^[1]; Prestemon, Soren O. ^[1];

^[3]

Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
European Organization for Nuclear Research (CERN), Geneva (Switzerland)
CEA Saclay, Saclay (France)

Publication Date:: 2018-01-30

Research Org.:: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)

Sponsoring Org.:: USDOE Office of Science (SC), High Energy Physics (HEP)

OSTI Identifier:: 1452786

Alternate Identifier(s):: OSTI ID: 1561883

Report Number(s):: FERMILAB-PUB-17-372-TD
Journal ID: ISSN 1051-8223; 1671477; TRN: US1900981

Grant/Contract Number:: AC02-07CH11359; AC02-05CH11231

Resource Type:: Accepted Manuscript

Journal Name:: IEEE Transactions on Applied Superconductivity

Additional Journal Information:: Journal Volume: 28; Journal Issue: 3; Journal ID: ISSN 1051-8223

Publisher:: Institute of Electrical and Electronics Engineers (IEEE)

Country of Publication:: United States

Language:: English

Subject:: 43 PARTICLE ACCELERATORS; superconducting magnet; superconducting coils; high luminosity LHC; MQXF; quadrupole

Citation Formats


                    Cheng, Daniel W., Ambrosio, Giorgio, Anderssen, Eric C., Bourcey, Nicolas, Felice, Helene, Ferracin, Paolo, Grosclaude, Philippe, Guinchard, Michael, Perez, Juan Carlos, Pan, Heng, Prestemon, Soren O., and Vallone, Giorgio. Fabrication and Assembly Performance of the First 4.2 m MQXFA Magnet and Mechanical Model for the Hi-Lumi LHC Upgrade.  United States: N. p., 2018. 
Web.  doi:10.1109/TASC.2018.2799563.

Copy to clipboard


                    Cheng, Daniel W., Ambrosio, Giorgio, Anderssen, Eric C., Bourcey, Nicolas, Felice, Helene, Ferracin, Paolo, Grosclaude, Philippe, Guinchard, Michael, Perez, Juan Carlos, Pan, Heng, Prestemon, Soren O., & Vallone, Giorgio. Fabrication and Assembly Performance of the First 4.2 m MQXFA Magnet and Mechanical Model for the Hi-Lumi LHC Upgrade.  United States.  https://doi.org/10.1109/TASC.2018.2799563

Copy to clipboard


                    Cheng, Daniel W., Ambrosio, Giorgio, Anderssen, Eric C., Bourcey, Nicolas, Felice, Helene, Ferracin, Paolo, Grosclaude, Philippe, Guinchard, Michael, Perez, Juan Carlos, Pan, Heng, Prestemon, Soren O., and Vallone, Giorgio. Tue .  
"Fabrication and Assembly Performance of the First 4.2 m MQXFA Magnet and Mechanical Model for the Hi-Lumi LHC Upgrade".  United States.  https://doi.org/10.1109/TASC.2018.2799563.  https://www.osti.gov/servlets/purl/1452786.

Copy to clipboard


                    
@article{osti_1452786,

  title        = {Fabrication and Assembly Performance of the First 4.2 m MQXFA Magnet and Mechanical Model for the Hi-Lumi LHC Upgrade},

  author       = {Cheng, Daniel W. and Ambrosio, Giorgio and Anderssen, Eric C. and Bourcey, Nicolas and Felice, Helene and Ferracin, Paolo and Grosclaude, Philippe and Guinchard, Michael and Perez, Juan Carlos and Pan, Heng and Prestemon, Soren O. and Vallone, Giorgio},

  abstractNote = {© 2018 IEEE. The LHC accelerator research program (LARP), in collaboration with CERN and under the scope of the high luminosity upgrade of the Large Hadron Collider, is in the prototyping stage in the development of a 150 mm aperture high-field Nb3Sn quadrupole magnet called MQXF. This magnet is mechanically supported using a shell-based support structure, which has been extensively demonstrated on several R&D models within LARP, as well as in the more recent short (1.2 m magnetic length) MQXF model program. The MQXFA magnets are each 4.2 m magnetic length, and the first mechanical long model, MQXFA1M (using aluminum surrogate coils), and MQXFAP1 prototype magnet (the first prototype with Nb3Sn coils) have been assembled at the LBNL. In this paper, we summarize the tooling and the assembly processes, and discuss the mechanical performance of these first two assemblies, comparing strain gauge data with finite element model analysis, as well as the near-term plans for the long MQXF magnet program.},

  doi          = {10.1109/TASC.2018.2799563},

  journal      = {IEEE Transactions on Applied Superconductivity},

  number       = 3,

  volume       = 28,

  place        = {United States},

  year         = {2018},

  month        = {1}

}

Copy to clipboard

Journal Article:

Free Publicly Available Full Text

Accepted Manuscript (DOE)

Publisher's Version of Record

https://doi.org/10.1109/TASC.2018.2799563

Other availability

Search WorldCat to find libraries that may hold this journal

Citation Metrics:

Cited by: 8 works

Citation information provided by
Web of Science

Figures / Tables:

Figure 1: Cross section of the MQXFA Magnet (the LHe SST vessel will be added during cold mass assembly).

All figures and tables (19 total)

Save / Share:

Export Metadata

Save to My Library

Figures / Tables found in this record:

Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.

Similar Records in DOE PAGES and OSTI.GOV collections:

Assembly Tests of the First Nb ₃ Sn Low-Beta Quadrupole Short Model for the Hi-Lumi LHC

Journal Article Pan, H. ; Felice, H. ; Cheng, D. W. ; ... - IEEE Transactions on Applied Superconductivity

In preparation for the high-luminosity upgrade of the Large Hadron Collider (LHC), the LHC Accelerator Research Program (LARP) in collaboration with CERN is pursuing the development of MQXF: a 150-mm-aperture high-field Nb 3 Sn quadrupole magnet. The development phase starts with the fabrication and test of several short models (1.2-m magnetic length) and will continue with the development of several long prototypes. All of them are mechanically supported using a shell-based support structure, which has been extensively demonstrated on several RD models within LARP. The first short model MQXFS-AT has been assembled at LBNL with coils fabricated by LARP andmore »« less
Cited by 19
https://doi.org/10.1109/TASC.2016.2516584

Full Text Available
Analysis of the mechanical performance of the 4.2 m long MQXFA magnets for the Hi-Lumi LHC Upgrade

Journal Article Garcia Fajardo, L. ; Ambrosio, G. ; Yahia, A. Ben ; ... - TBD

Under the U.S. High Luminosity LHC Accelerator Upgrade Project (HL-LHC AUP), the 150 mm bore, high-field Nb3Sn low-{eta}_MQXFA quadrupole magnets are being fabricated, assembled and tested, in the context of the CERN Hi-Luminosity LHC (HL-LHC) upgrade. These magnets have 4.2 m magnetic length and 4.56 m long iron yoke. To date, eight MQXFA magnets have been tested. One of the magnets additionally underwent a successful endurance test with 40 triggered quenches, and two magnets did not perform as expected. This work summarizes for the first time the available strain gauge data from eight identical Nb3Sn MQXFA tested magnets, focusing onmore »« less
Full Text Available
Mechanical Performance of the First Two Prototype 4.5 m Long Nb₃ Sn Low-β Quadrupole Magnets for the Hi-Lumi LHC Upgrade

Journal Article Cheng, Daniel W. ; Ambrosio, Giorgio ; Anderssen, Eric C. ; ... - IEEE Transactions on Applied Superconductivity

The U.S. High-Luminosity LHC Accelerator Upgrade Project (HL-LHC AUP) team is collaborating with CERN in the design and fabrication of the first 4.5 m long MQXFA magnets, a 150 mm aperture high-field Nb3Sn quadrupole magnet that uses the aluminum shell-based bladder-and-key technology. The first two prototype magnets, MQXFAP1 and MQXFAP2, were assem-bled and tested while the first pre-series structure (MQXFA03) was in fabrication. This paper summarizes the mechanical perfor-mance of these prototype structures based on the comparison of measured strain gauge data with finite element model analyses from all load steps to powering. The MQXFAP1 magnet almost reached ultimate currentmore »« less
Cited by 5
https://doi.org/10.1109/TASC.2020.2972210

Full Text Available
Preload Characterization of Short Models of MQXF the Nb ₃ Sn Low-β Quadrupole for the Hi-Lumi LHC

Journal Article Takala, Eelis ; Ambrosio, Giorgio ; Bourcey, Nicolas ; ... - IEEE Transactions on Applied Superconductivity

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.more »« less
Cited by 6
https://doi.org/10.1109/TASC.2020.2973119

Full Text Available
Conductor Specification and Validation for High-Luminosity LHC Quadrupole Magnets

Journal Article Cooley, L. D. ; Ghosh, A. K. ; Dietderich, D. R. ; ... - IEEE Transactions on Applied Superconductivity

© 2017 IEEE. The high-luminosity upgrade of the large hadron collider (HL-LHC) at CERN will replace the main ring inner triplet quadrupoles, identified by the acronym MQXF, adjacent to the main ring intersection regions. For the past decade, the U.S. LHC Accelerator R&D Program, LARP, has been evaluating conductors for the MQXFA prototypes, which are the outer magnets of the triplet. Recently, the requirements for MQXF magnets and cables have been published in [P. Ferracin et al., IEEE Trans. Appl. Supercond., vol. 26, no. 4, Jun. 2016, Art. no. 4000207], along with the final specification for Ti-alloyed Nb3Sn conductor determinedmore »« less
Cited by 25
https://doi.org/10.1109/TASC.2017.2648738

Full Text Available

Similar Records