Magnetic Measurements and Alignment Results of LQXFA/B Cold Mass Assemblies at Fermilab

Magnetic Measurements and Alignment Results of LQXFA/B Cold Mass Assemblies at Fermilab

MQXFA production series quadrupole magnets are being built for the Hi-Lumi (HL) LHC upgrade by the U.S. Accelerator Upgrade Project (US-HL-LHC AUP). These magnets are being placed in pairs, as a cold mass, within cryostats at Fermilab, and are being tested to assess alignment and magnetic performanc...

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Veröffentlicht in:IEEE transactions on applied superconductivity 2023-12, Vol.34 (5)
Hauptverfasser: DiMarco, J., Akella, P., Ambrosio, G., Baldini, M., Chlachidze, G., Feher, S., Nogiec, J., Nikolic, V., Stoynev, S., Strauss, T., Tartaglia, M., Thompson, P., Walbridge, D.
Format: Artikel
Sprache:eng
Schlagworte:
accelerator magnets
electromagnetic measurements
magnet alignment
magnetic measurements
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
superconducting magnets
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Zusammenfassung:MQXFA production series quadrupole magnets are being built for the Hi-Lumi (HL) LHC upgrade by the U.S. Accelerator Upgrade Project (US-HL-LHC AUP). These magnets are being placed in pairs, as a cold mass, within cryostats at Fermilab, and are being tested to assess alignment and magnetic performance at Fermilab's horizontal test stand facility. The ~10 m - long assembly must meet stringent specifications for quadrupole strength and harmonic field integrals determination, magnetic axis position, and for magnet variations in positioning and local field profile. Here this paper describes the results of the magnetic and alignment measurements which characterize the first LQXFA/B assembly.
ISSN:1051-8223