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Title: The HL-LHC Low-β Quadrupole Magnet MQXF: From Short Models to Long Prototypes

Abstract

Among the components to be upgraded in LHC interaction regions for the HiLumi-LHC projects are the inner triplet (or low-β) quadrupole magnets, denoted as Q1, Q2a, Q2b, and Q3. Here, the new quadrupole magnets, called MQXF, are based on Nb3Sn superconducting magnet technology and operate at a gradient of 132.6 T/m, with a conductor peak field of 11.4 T. Q1 and Q3 are composed of magnets (called MQXFA) fabricated by the U.S. Accelerator Upgrade Project (AUP), with a magnetic length of 4.2 m. Q2a and Q2b consist of magnets (called MQXFB) fabricated by CERN, with a magnetic length of 7.15 m. After a series of short models, constructed in close collaboration by the US and CERN, the development program is now entering in the prototyping phase, with CERN on one side and BNL, FNAL, and LBNL on the other side assembling and testing their first long magnets We provide in this paper a description of the status of the MQXF program, with a summary of the short model test results, including quench performance, and mechanics, and an update on the fabrication, assembly, and test of the long prototypes.

Authors:
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  1. European Organization for Nuclear Research (CERN), Geneva (Switzerland)
  2. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
  3. Brookhaven National Lab. (BNL), Upton, NY (United States)
  4. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  5. National High Magnetic Laboratory, Tallahassee, FL (United States)
  6. National High Magnetic Lab, Tallahassee, FL (United States)
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Brookhaven National Lab. (BNL), Upton, NY (United States); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP)
OSTI Identifier:
1564055
Alternate Identifier(s):
OSTI ID: 1497087
Report Number(s):
FERMILAB-PUB-19-008-TD
Journal ID: ISSN 1051-8223; ark:/13030/qt2cg440sv; TRN: US2000832
Grant/Contract Number:  
AC02-05CH11231; AC02-07CH11359
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
IEEE Transactions on Applied Superconductivity
Additional Journal Information:
Journal Volume: 29; Journal Issue: 5; Journal ID: ISSN 1051-8223
Publisher:
Institute of Electrical and Electronics Engineers (IEEE)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; High Luminosity LHC; Interaction Regions; Low-β Quadrupoles; Nb3Sn magnets; 43 PARTICLE ACCELERATORS

Citation Formats

Ferracin, Paolo, Ambrosio, Giorgio, Anerella, Michael, Bajas, Hugues, Bajko, Marta, Bordini, Bernardo, Bossert, Rodger, Bourcey, Nicolas, Cheng, Daniel W., Chlachidze, Guram, Cooley, Lance D., Troitino, Salvador Ferradas, Fiscarelli, Lucio, Fleiter, Jerome, Guinchard, Michael, Bermudez, Susana Izquierdo, Krave, Steven, Lackner, Friedrich, Mangiarotti, Franco, Marchevsky, Maxim, Marinozzi, Vittorio, Muratore, Joseph, Nobrega, Alfred, Pan, Heng, Perez, Juan Carlos, Pong, Ian, Prestemon, Soren, Prin, Herve, Ravaioli, Emmanuele, Sabbi, Gian Luca, Schmalzle, Jesse, Tavares, Sandra Sequeira, Stoynev, Stoyan, Todesco, Emilov, Vallone, Giorgio, Wanderer, Peter, Wang, Xiaorong, and Yu, Miao. The HL-LHC Low-β Quadrupole Magnet MQXF: From Short Models to Long Prototypes. United States: N. p., 2019. Web. doi:10.1109/tasc.2019.2895908.
Ferracin, Paolo, Ambrosio, Giorgio, Anerella, Michael, Bajas, Hugues, Bajko, Marta, Bordini, Bernardo, Bossert, Rodger, Bourcey, Nicolas, Cheng, Daniel W., Chlachidze, Guram, Cooley, Lance D., Troitino, Salvador Ferradas, Fiscarelli, Lucio, Fleiter, Jerome, Guinchard, Michael, Bermudez, Susana Izquierdo, Krave, Steven, Lackner, Friedrich, Mangiarotti, Franco, Marchevsky, Maxim, Marinozzi, Vittorio, Muratore, Joseph, Nobrega, Alfred, Pan, Heng, Perez, Juan Carlos, Pong, Ian, Prestemon, Soren, Prin, Herve, Ravaioli, Emmanuele, Sabbi, Gian Luca, Schmalzle, Jesse, Tavares, Sandra Sequeira, Stoynev, Stoyan, Todesco, Emilov, Vallone, Giorgio, Wanderer, Peter, Wang, Xiaorong, & Yu, Miao. The HL-LHC Low-β Quadrupole Magnet MQXF: From Short Models to Long Prototypes. United States. https://doi.org/10.1109/tasc.2019.2895908
Ferracin, Paolo, Ambrosio, Giorgio, Anerella, Michael, Bajas, Hugues, Bajko, Marta, Bordini, Bernardo, Bossert, Rodger, Bourcey, Nicolas, Cheng, Daniel W., Chlachidze, Guram, Cooley, Lance D., Troitino, Salvador Ferradas, Fiscarelli, Lucio, Fleiter, Jerome, Guinchard, Michael, Bermudez, Susana Izquierdo, Krave, Steven, Lackner, Friedrich, Mangiarotti, Franco, Marchevsky, Maxim, Marinozzi, Vittorio, Muratore, Joseph, Nobrega, Alfred, Pan, Heng, Perez, Juan Carlos, Pong, Ian, Prestemon, Soren, Prin, Herve, Ravaioli, Emmanuele, Sabbi, Gian Luca, Schmalzle, Jesse, Tavares, Sandra Sequeira, Stoynev, Stoyan, Todesco, Emilov, Vallone, Giorgio, Wanderer, Peter, Wang, Xiaorong, and Yu, Miao. 2019. "The HL-LHC Low-β Quadrupole Magnet MQXF: From Short Models to Long Prototypes". United States. https://doi.org/10.1109/tasc.2019.2895908. https://www.osti.gov/servlets/purl/1564055.
@article{osti_1564055,
title = {The HL-LHC Low-β Quadrupole Magnet MQXF: From Short Models to Long Prototypes},
author = {Ferracin, Paolo and Ambrosio, Giorgio and Anerella, Michael and Bajas, Hugues and Bajko, Marta and Bordini, Bernardo and Bossert, Rodger and Bourcey, Nicolas and Cheng, Daniel W. and Chlachidze, Guram and Cooley, Lance D. and Troitino, Salvador Ferradas and Fiscarelli, Lucio and Fleiter, Jerome and Guinchard, Michael and Bermudez, Susana Izquierdo and Krave, Steven and Lackner, Friedrich and Mangiarotti, Franco and Marchevsky, Maxim and Marinozzi, Vittorio and Muratore, Joseph and Nobrega, Alfred and Pan, Heng and Perez, Juan Carlos and Pong, Ian and Prestemon, Soren and Prin, Herve and Ravaioli, Emmanuele and Sabbi, Gian Luca and Schmalzle, Jesse and Tavares, Sandra Sequeira and Stoynev, Stoyan and Todesco, Emilov and Vallone, Giorgio and Wanderer, Peter and Wang, Xiaorong and Yu, Miao},
abstractNote = {Among the components to be upgraded in LHC interaction regions for the HiLumi-LHC projects are the inner triplet (or low-β) quadrupole magnets, denoted as Q1, Q2a, Q2b, and Q3. Here, the new quadrupole magnets, called MQXF, are based on Nb3Sn superconducting magnet technology and operate at a gradient of 132.6 T/m, with a conductor peak field of 11.4 T. Q1 and Q3 are composed of magnets (called MQXFA) fabricated by the U.S. Accelerator Upgrade Project (AUP), with a magnetic length of 4.2 m. Q2a and Q2b consist of magnets (called MQXFB) fabricated by CERN, with a magnetic length of 7.15 m. After a series of short models, constructed in close collaboration by the US and CERN, the development program is now entering in the prototyping phase, with CERN on one side and BNL, FNAL, and LBNL on the other side assembling and testing their first long magnets We provide in this paper a description of the status of the MQXF program, with a summary of the short model test results, including quench performance, and mechanics, and an update on the fabrication, assembly, and test of the long prototypes.},
doi = {10.1109/tasc.2019.2895908},
url = {https://www.osti.gov/biblio/1564055}, journal = {IEEE Transactions on Applied Superconductivity},
issn = {1051-8223},
number = 5,
volume = 29,
place = {United States},
year = {2019},
month = {1}
}

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Figures / Tables:

Figure 1 Figure 1: A view of the MQXFS support structure with Al dummy coils.

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Works referencing / citing this record:

Mechanical analysis of the Nb 3 Sn 11 T dipole short models for the High Luminosity Large Hadron Collider
journal, July 2019