Systems and methods for obtaining two- and three-dimensional magnetic
resonance images by using azimuthally symmetric dipolar magnetic fields
from magnetic spheres. A complete two- or three-dimensional structured
rendering of a sample can be obtained without the motion of the sample
relative to the sphere. Magnetic spheres in the range of 100 .mu.m and
100 nm are used with samples that are approximately one-tenth as large as
the magnetic sphere. Sequential positioning of the integrated
sample-sphere system in an external magnetic field at various angular
orientations provides all the required imaging slices for successful
computerized tomographic image reconstruction. The requirement to scan
the sample relative to the magnetic tip is eliminated. Resolutions
approaching atomic dimensions are expected to be obtained.