DOE OSTI · 3018448
US HL-LHC cryo-assemblies at FNAL - testing and lessons learned
Abstract
The U.S. High-Luminosity LHC Accelerator Upgrade Project (AUP) is fabricating ten cryogenic assemblies for the HL-LHC Q1/Q3 quadrupole optics at CERN, each integrating two Nb_{3}Sn-based magnets. Fermilab has tested three assemblies (LQXFA/B01–03) at its upgraded horizontal test stand under 1.9 K conditions. Overview of the test stand and the cryo-assembly tests is given along with main results. Challenges met and lessons learned are discussed. Successful testing validates the design and integration of U.S.-produced cryo-assemblies, keeping the project on track for timely delivery to CERN.
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Stoynev, Stoyan [Fermilab] (ORCID:0000000345637702), Chlachidze, Guram [Fermilab]. 2026-01-14. US HL-LHC cryo-assemblies at FNAL - testing and lessons learned. https://doi.org/10.2172/3018448
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