A method of providing shim sheets for adjusting a magnetic field in a
magnetic resonance device by passive shimming, comprises the steps of
field mapping of a region of interest in the MR device for obtaining an
uncorrected magnetic field distribution including field inhomogeneities,
decomposing the field inhomogeneities into first and second order
spherical harmonic functions, determining primary shim terms derived from
the second order spherical harmonic functions, wherein the primary shim
terms yield a passive shim field adapted to a targeted shim field,
scaling optimized shim terms for increasing a similarity of the passive
shim field with the targeted shim field, constructing modular shim sheets
on the basis of the optimized shim terms, and mounting the modular shim
sheets on a shim sheet carrier of the magnetic resonance device.
Furthermore, an adjustment device for adjusting a magnetic field in a
magnetic resonance device by passive shimming is described.