2021
DOI: 10.1109/tasc.2021.3057573
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Mechanical Comparison of Short Models of Nb3 Sn Low-β Quadrupole for the Hi-Lumi LHC

Abstract: MQXF is the Nb3Sn Low-β quadrupole magnet that the HL-LHC project is planning to install in the LHC interaction regions in 2026 to increase the LHC integrated luminosity. The magnet will be fabricated in two different lengths: 4.2 m for MQXFA, built in the US by the Accelerator Upgrade Project (AUP), and 7.15 m for MQXFB, fabricated by CERN. In order to qualify the magnet design and characterize its performance with different conductors, cable geometries and pre-load configurations, five short model magnets, c… Show more

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Cited by 5 publications
(17 citation statements)
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“…This can cause one-sided pole key to collar contact in a loaded condition. However, in practice, the contact hasn't had a significant effect on the coil stress [10].…”
Section: Shimming Planmentioning
confidence: 99%
See 3 more Smart Citations
“…This can cause one-sided pole key to collar contact in a loaded condition. However, in practice, the contact hasn't had a significant effect on the coil stress [10].…”
Section: Shimming Planmentioning
confidence: 99%
“…The resulting coil pack is almost always different compared to the design as the coils do not exactly respect their nominal dimensions. In a rigid system, even small variations of dimension can cause considerable stress distribution deviations [10]. Moreover, the conductors get misplaced which may compromise the field quality of the magnet.…”
Section: Shimming Planmentioning
confidence: 99%
See 2 more Smart Citations
“…Both two-dimensional and three-dimensional mechanical models were developed for MQXF well before this work (see figure 7), and extensively validated during the test campaign of short model magnets [79][80][81][82][83][84][85][86][87][88]. Structural elements are used to mesh the different magnet components, where the geometry of the conductor blocks (composed of many cable turns) is simplified as a homogenized solid volume.…”
Section: Model Descriptionmentioning
confidence: 99%