Patent ID: 6903552

Claim:
A magnetic resonance apparatus comprising; a magnetic resonance scanner having an imaging volume; a coil arrangement in said scanner adapted to be supplied with a temporaily changing current to generate a magnetic gradient field in said imaging volume; said scanner including an electrically conductive structure at least partially surrounding said coil arrangement and in which, due to said current in said coil arrangement, eddy currents are caused that produce an eddy current field that interferes with said gradient field in said imaging volume; said coil arrangement having at least two conductor sections selected from the group consisting of a first conductor section that contributes to the generation of the gradient field, and that generates, via the electrically conductive structure, a first eddy current field in the imaging volume, representing a first interference factor, a second conductor section that contributes to the generation of the gradient field, thereby generating, via the electrically conductive structure, a second eddy current field in the imaging volume, representing a second interference factor, and that additionally generates a field for compensating the first eddy current field, and a third conductor section that contributes exclusively to compensation of said first and second interference factors; and one of the conductor sections that contributes to compensation of said interference factors being spaced, relative to said imaging volume, at less than or equal to a distance of one of the conductor sections contributing to the gradient field.