| 摘要 |
A magnetic resonance apparatus has a basic field magnet with an inner unit, an outer unit and at least one middle unit that are essentially hollow-cylindrical and are electrically conductive and that are arranged inside one another such that the inner unit is enveloped by the middle unit and the middle unit is enveloped by the outer unit, and a gradient coil system which induces eddy currents at least in regions of the outer unit. At least the inner cylindrical jackets of the units are matched to one another in term of mechanical properties according so that the middle unit effectively damps oscillatory transmission from the outer unit to the inner unit that would otherwise occur due to magnetic coupling.
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