Test Result of the Short Models MQXFS3 and MQXFS5 for the HL-LHC Upgrade

Journal Article · 26 February 2018 · IEEE Transactions on Applied Superconductivity

DOI: https://doi.org/10.1109/TASC.2018.2810100 · OSTI ID:1436716

Bajas, Hugues ^[1]; Ambrosio, Giorgio ^[2]; Ballarino, A. ^[1]; Bajko, Marta ^[1]; Bordini, B. ^[1]; Bourcey, N. ^[1]; Cheng, D. W. ^[3]; Cabon, M. ^[3]; Chiuchiolo, A. ^[1]; Chlachidze, G. ^[2]; Felice, H. ^[1]; Fiscarelli, L. ^[1]; Juchno, M. ^[3]; Bermudez, Susana Izquierdo ^[1]; Guinchard, M. ^[1]; Kopal, J. ^[1]; Lackner, F. ^[1]; Marchevsky, M. ^[3]; Nobrega, F. ^[2]; Pan, H. ^[1] ; Perez, J. C. ^[1]; Prin, H. ^[1]; Ravaioli, E. ^[3]; Rossi, L. ^[1]; Sabbi, G. ^[3]; Tavares, S. Sequeira ^[1]; Steckert, J. ^[1]; Stoynev, S. ^[2]; Todesco, Ezio ^[1]; Vallone, G. ^[1]; Wanderer, P. ^[4]; Wang, X. ^[2]; Yu, M. ^[2]

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1. European Organization for Nuclear Research (Switzerland)
2. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
3. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
4. Brookhaven National Lab. (BNL), Upton, NY (United States)

In the framework of the High-Luminosity Large Hadron Collider, the installation of a new generation of quadrupole magnets is foreseen on each side of ATLAS and CMS experiments. The new magnets are based on Nb$$_{3}$$Sn technology and shall be able to reach an ultimate current of 17.9 kA with a peak field of 12.3 T in the coil. In 2016 and 2017, the first two short models, called MQXFS3 and MQXFS5, have been tested at 4.2 and 1.9 K in the two new test benches at the European Organization for Nuclear Research. This paper presents the result of the quench performance of the two models; the first magnet reached nominal but failed to reach ultimate, showing detraining in one coil. MQXFS5 reached ultimate performance without any detraining phenomena, validating the PIT conductor used for the first time in this magnet program.

• Research Organization: Brookhaven National Laboratory (BNL), Upton, NY (United States); Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
• Grant/Contract Number: AC02-07CH11359
• OSTI ID: 1436716
• Alternate ID(s): OSTI ID: 1563949
• Report Number(s): FERMILAB-PUB--18-094-TD; {"Journal ID: ISSN 1051-8223",1663921}
• Journal Information: IEEE Transactions on Applied Superconductivity, Journal Name: IEEE Transactions on Applied Superconductivity Journal Issue: 3 Vol. 28; ISSN 1051-8223
• Publisher: Institute of Electrical and Electronics Engineers (IEEE)Copyright Statement
• Country of Publication: United States
• Language: English