Magnetic field containment inductors

A system comprising:

• an inductor comprising an inner surface and an outer surface;
• a plurality of magnetic field containment devices that at least partially surround the inductor, and, in operation, contain approximately 50 percent of a magnetic B-Field generated by electrical current in the inductor, wherein the plurality of magnetic field containment devices comprises:
• a first magnetic field containment device comprising a first top portion coupled to a first bottom portion via a first inner pillar and a first outer pillar, wherein the first top portion, the first bottom portion, the first inner pillar, and the first outer pillar, enclose a first portion of the inductor along a first transverse plane of the inductor;
• and
• a second magnetic field containment device not electrically connected to the first magnetic field containment device via any conductor, wherein the second magnetic field containment device comprises a second top portion coupled to a second bottom portion via a second inner pillar, an intermediate pillar, and a second outer pillar, wherein the second top portion, the second bottom portion, the second inner pillar, the intermediate pillar, and the second outer pillar, enclose a second portion of the inductor along a second transverse plane of the inductor.