Bucking of a high field solenoid with a torus is proposed as a method
to increase the field capabilities of multiple pulse magnets. The purp
ose of the toroidal magnet is to apply radial loads to the solenoidal
magnet. Because of the relatively low value of the out-of-plane loads,
the toroidal magnet needs to be only in the bucking configuration. Th
e region inside the toroidal magnet may be filled with structure to he
lp support the relatively low out-of-plane loads. In order to obtain t
he most benefit from this approach, the toroidal and the solenoidal fi
eld magnet are energized by the same current. In this paper, numerical
calculations of the performance of such a magnet will be presented. D
esigns for the toroidal magnet will be described. Calculations of the
maximum fields achievable with this configuration will be presented.