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Study of Kapton insulated superconducting coils manufactured for the LHC inner triplet model magnets at Fermilab

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11 Author(s)
N. Andreev ; Fermi Nat. Accel. Lab., Batavia, IL, USA ; T. Arkan ; R. Bossert ; J. Brandt
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Fermilab has constructed a number of 2 m model quadrupoles as part of an ongoing program to develop and optimize the design of quadrupoles for the LHC Interaction Region inner triplets. The quadrupole design is based upon a two layer shell type coil of multi-filament NbTi strands in Rutherford cable, insulated with Kapton film. As such, the coil size and mechanical properties are critical in achieving the desired prestress and field quality targets for the agent. Throughout the model magnet program, different design and manufacturing techniques have been studied to obtain coils with the required mechanical properties. This paper summarizes the structural material and coil mechanical properties, coil design optimization results and production experience accumulated in the model R&D program.

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