Fabrication of the Fermilab Pre-Series Cold Mass for the HL-LHC Accelerator Upgrade Project

Fermilab is fabricating ten full length cold masses for the high-luminosity Large Hadron Collider Accelerator Upgrade Project (HL-LHC AUP). One practice assembly and one pre-series assembly have been completed. This paper summarizes the con-struction details. Topics include incoming inspection, bus...

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Bibliographic Details
Published in:IEEE transactions on applied superconductivity 2023-08, Vol.33 (5), p.1-5
Main Authors: Vouris, A., Bossert, R., DiMarco, J., Feher, S., Martin, L., Strauss, T., Wilson, C., Prin, H., Todesco, E.
Format: Article
Language:English
Subjects:
Accelerator magnets
Assembly
bus
cold mass
Electron tubes
expansion loops
Heat exchangers
Heating systems
HL-LHC
Inspection
Large Hadron Collider
LMQXFA
Luminosity
Machining
PARTICLE ACCELERATORS
quadrupole
Structural beams
Superconducting magnets
Testing
Welding
Wires
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Summary:Fermilab is fabricating ten full length cold masses for the high-luminosity Large Hadron Collider Accelerator Upgrade Project (HL-LHC AUP). One practice assembly and one pre-series assembly have been completed. This paper summarizes the con-struction details. Topics include incoming inspection, bus assembly, component machining, shell forming, beam tube insertion, bus expansion loop installation, instrumentation installation, electrical testing, heat exchanger installation and final assembly welding. In-process surveys, alignment measurements and testing are presented and explained. Problems encountered during construction and their solutions are discussed.
ISSN:1051-8223
1558-2515
DOI:10.1109/TASC.2023.3254491