Abstract
This paper is specifically aimed at the problem of obtaining magnetic fields of the highest possible uniformity at the center of coil systems of a number of given shapes, principally combinations of circular, square and solenoidal coil. The field uniformities of some previous arrangements and some new arrangements are discussed. The variations of the onaxis fields due to different coil arrangements are shown graphically (Fig. 3 and 10) near their centers and tabulated numerically along their axes of symmetry.
