Figure 1.

A : Magnetic field distribution in the vertical plane; (- - - - -) represents the boundary of the ± 2.5% cylindrical uniform magnetic field; (- - -) represents the boundary of the sample holder. B: Magnetic field distribution in the horizontal plane demonstrating cylindrical symmetry; (- - - -) represents the boundary of the ± 2.5% cylindrical uniform magnetic field; (- - -) represents the boundary of the sample holder.