In this system and method for magnetic resonance imaging, an actively
shielded primary coil includes a first and second set of turns each having
a prescribed number of turns about an axis, and each being symmetrically
positioned radially from the axis and equidistant with respect to a mid
plane perpendicular to the axis. A secondary shielding coil includes a
third and fourth set of turns each having a prescribed number of turns
about the axis and being symmetrically positioned radially from the axis
and equidistant with respect to the mid plane. The third set of turns is
positioned in close proximity to the first set of turns and outward of the
first set of turns. Likewise, the fourth set of turns is positioned in
close proximity to the second set of turns and outward of the second set
of turns. The first and third sets of turns are in a first prescribed
turns ratio and the second and fourth sets of turns are in a second
prescribed turns ratio.
