Design of resistive inserts for the NHMFL 45-T hybrid magnet

Presents conceptual designs for 24-27 MW hybrid magnet inserts generating more than 31 T in a warm bore of 32 mm to be installed at the new National High Magnetic Field Laboratory. The insert housing is designed to accommodate both axially and radially cooled magnets although here we only present axially cooled designs. The magnet coils are radially partitioned (poly-Bitter) to provide high fields at moderate stress and cooling levels. GlidCop, Cu-Be and Cu-Ag conductors are considered providing resistive fields as high as 34 T in a background field of 14 T.>