| Published Articles | |
| Report number | FERMILAB-PUB-19-054 |
| Title | Magnetic Analysis of the MQXF Quadrupole for the High Luminosity LHC |
| Author(s) | Izquierdo Bermudez, S (CERN ; Madrid Politecnic U., ETSI Minas) ; Fiscarelli, Lucio (CERN) ; Ambrosio, Giorgio (Fermilab) ; Bajas, Hugues (CERN) ; Chlachidze, Guram (Fermilab) ; Ferracin, Paolo (CERN) ; DiMarco, Joseph (Fermilab) ; Stoynev, Stoyan Emilov (Fermilab) ; Todesco, Ezio (CERN) ; Sabbi, GianLuca (LBL, Berkeley) ; Vallone, Giorgio (CERN) |
| Collaboration | LARP |
| Publication | 2019 |
| Imprint | 2019-02-04 |
| Number of pages | 5 |
| In: | IEEE Trans. Appl. Supercond. 29 (2019) 4901705 |
| In: | Applied Superconductivity Conference 2018, Seattle, United States Of America, 28 Oct - 2 Nov 2018, pp.4901705 |
| DOI | 10.1109/TASC.2019.2897848 |
| Subject category | Accelerators and Storage Rings |
| Accelerator/Facility, Experiment | LARP |
| Abstract | The high-luminosity upgrade of the large hadron collider (HL-LHC) requires new high-field and large-aperture quadrupole magnets for the low-beta inner triplets (MQXF). The US Hilumi-LHC Accelerator Upgrade (HL-LHC AUP) and CERN are jointly developing a 150 mm aperture Nb3Sn magnet. Due to the large beam size and orbit displacement in the final focusing triplet, MQXF has challenging field quality targets at collision energy. Magnetic measurements have been performed both at ambient and cryogenic temperatures in the four short models built and tested. This paper presents the magnetic analysis, comparing field measurements with the expectations and the field quality requirements. The analysis is focused on the geometrical harmonics and iron saturation effect, including three dimensional effects and transfer function repeatability. Persistent currents and dynamic effects are also discussed. |
Corresponding record in: Inspire
Rekord stworzony 2019-08-13, ostatnia modyfikacja 2020-08-28
