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Design of LD1, a Large-Aperture High-Field {\rm Nb}_{3}{\rm Sn} Dipole Magnet

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9 Author(s)
P. Ferracin ; Lawrence Berkeley National Lab, Berkeley, CA, USA ; D. W. Cheng ; D. R. Dietderich ; H. Felice
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In order to continue supporting the development of accelerator magnets for the next generation of particle colliders, the LBNL Superconducting Magnet Program has started the design and fabrication of the Large-aperture Dipole LD1. The goal of the magnet is to generate a dipole field of 13 T to 15 T in a clear aperture of 144 mm × 94 mm, enabling high-field tests of Rutherford cables and insert coils made of or high temperature superconductors (HTS), like Bi-2212, YBCO, and Bi-2223. The bore size will also accommodate large Cable-In-Conduit Conductors (CICC's), including ITER cables. We describe in this paper the design of LD1, in particular cable geometry, coil lay-out and support structure. Operational conditions based on strand measurements will be discussed, focusing on coil peak fields in straight section and end region, bore field homogeneity, and stress on the conductor during assembly, cool-down and excitation.

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IEEE Transactions on Applied Superconductivity  (Volume:22 ,  Issue: 3 )