Magnetic trimming arrangement for the correction of the harmonic components n - order of a component of the main magnet field of an apparatus operating with a nuclear magnetic resonance imaging

摘要

a magnetic trimmeinrichtung (5) for the correction of the harmonic components of n under order of the z component of the hauptmagnetfeldes a nmr device with its stirnseitigen endflu00e4chen arranged so that the respective harmonic components (n + 2) - ter of magnetic fields of the e of the endflu00e4chen generateddifferent from zero and that the sum of the harmonic components (n + 2) - ter order is zero (fig. 3).