Power Test of the First Two HL-LHC Insertion Quadrupole Magnets Built at CERN

F.J. Mangiarotti*, G. Willering, L. Fiscarelli, M. Bajko, L. Bottura, V. Desbiolles, A. Devred, J. Ferradas Troitino, S. Izquierdo Bermudez, R. Keijzer, F. Lackner, A. Milanese, G. Ninet, H. Prin, E. Ravaioli, S. Russenschuck, E. Takala, E. Todesco

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

8 Citations (Scopus)
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The High-Luminosity project (HL-LHC) of the CERN Large Hadron Collider (LHC), requires low $\beta$∗ quadrupole magnets in Nb $_\text{3}$Sn technology that will be installed on each side of the ATLAS and CMS experiments. After a successful short-model magnet manufacture and test campaign, the project has advanced with the production, assembly, and test of full-size 7.15-m-long magnets. In the last two years, two CERN-built prototypes (MQXFBP1 and MQXFBP2) have been tested and magnetically measured at the CERN SM18 test facility. These are the longest accelerator magnets based on Nb $_\text{3}$Sn technology built and tested to date. In this paper, we present the test and analysis results of these two magnets, with emphasis on quenches and training, voltage-current measurements and the quench localization with voltage taps and a new quench antenna.

Original languageEnglish
Article number4003305
JournalIEEE transactions on applied superconductivity
Issue number6
Publication statusPublished - 1 Sept 2022


  • Low beta quadrupole
  • Nb3Sn
  • Quench
  • Superconducting magnets


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