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Mechanical design and analysis of LHC inner triplet quadrupole magnets at Fermilab

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16 Author(s)
Andreev, N. ; Fermi Nat. Accel. Lab., Batavia, IL, USA ; Arkan, T. ; Bossert, R. ; Chichili, D.R.
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A series of model magnets is being constructed and tested at Fermilab in order to verify the design of high gradient quadrupole magnets for the LHC interaction region inner triplets. The 2 m models are being built in order to refine the mechanical and magnetic design, optimize fabrication and assembly tooling, and ensure adequate quench performance. This has been carried out using a complementary combination of analytical and FEA modeling, empirical tests on 0.4 m mechanical assemblies and testing of model magnets during fabrication and under cryogenic conditions. The results of these tests and studies have led to improvements in the design of the magnet end restraints, to a preferred choice in coil end part material, and to a better understanding of factors affecting coil stress throughout the fabrication and operational stages.

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Applied Superconductivity, IEEE Transactions on  (Volume:10 ,  Issue: 1 )