A magnetic resonance apparatus has an RF antenna unit, a gradient coil
unit and an RF shield, the conductor structures of which are independent
of one another. The RF shield is arranged between the RF antenna unit and
the gradient coil unit, a first RF field return volume is arranged
between RF the antenna unit (1, 29, 55A, and the gradient coil unit, the
RF field return volume closes RF magnetic field lines of the RF antenna
unit and is bordered by the RF shield on the side of the gradient coil
unit. The conductor structure of the gradient coil unit occupies a first
region. A second conductor-free region is within the first region, on the
side facing the RF antenna unit, between a primary gradient coil unit and
a secondary shim gradient coil unit of the gradient coil unit. The second
conductor-free region is at least partially surrounded by the conductor
structure of the gradient coil unit and is fashioned as a second RF field
return volume in connection with the first RF field return volume. The RF
shield proceeds between the RF field return volumes and the conductor
structure of the gradient coil unit. The RF antenna unit is closer to the
data acquisition region of the magnetic resonance apparatus than the
gradient coil unit.