Operating method for a magnetic resonance system with compensation of the maxwell - terms of the second order

摘要

Operating method for a magnetic resonance system,– the magnetic resonance system one reason magnet system (1), by means of which, in a test volume (2) of the magnetic resonance system a temporally static, locally homogeneous basic magnetic field (b₀) can be generated,– the magnetic resonance system at least one rf system (4), by means of which a in the examination volume (2) which is arranged in the examination subject (5) can be excited to magnetic resonances and by means of which in the examination subject (5) can be received magnetic resonances are excited,– the magnetic resonance system has a system (6), by means of which the examination volume (2) by means of storage fields (b with_x, B_y, B_z, B₁, B₂, B₃, B₄, B₄'', B₄'''') can be acted upon, so that the basic magnetic field (b₀) and which, by means of storage fields (b_x, B_y, B_z, B₁, B₂, B₃, B₄, B₄'', B₄'''') to form a total field (b) are superimposed,– the system (6) at least a first order system (7) and a system of the second order (13) comprises,– the system of the first order (7) is designed in such a way that of the fields (b_x, B_y,..