Abstract
An 87.8 mm bore single aperture 10 T Nb/sub 3/Sn model dipole magnet is under development as a next step in the realization of high-field Nb/sub 3/Sn dipole magnets. The magnet is a 2 layer cos(/spl theta/)-dipole model as an alternative for the proposed NbTi D1 beam separator magnets for the LHC. After completion of the general magnetic and mechanical design, all attention is focused on the manufacturing and cabling of a novel powder-in-tube Nb/sub 3/Sn conductor. This Nb/sub 3/Sn conductor is characterized by a high non-Cu J/sub c/ of 2680 A/mm/sup 2/ at 10 T with an effective filament size of about 20 /spl mu/m. Cabling should result in a Rutherford type of cable exhibiting a moderate J/sub c/ degradation due to the cabling process itself, a low transverse stress sensitivity and a controllable minimum value of R/sub c/. The conductor development program is presented and the results are evaluated. Progress on the actual realization of the coils is briefly described.
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