A magnet arrangement comprising a superconducting magnet coil system (M) for generating a magnetic field in the direction of a horizontal z-axis in a working volume (V) disposed along the z-axis about z=0 with at least one radial access to the working volume (V) perpendicular to the z-axis, wherein the magnet coil system comprises at least one partial coil winding (A1a, A1b) disposed coaxially about the z-axis at z>0, and at least one partial coil winding (B1a, B1b) disposed coaxially about the z-axis at z<0, is characterized in that at least one of the partial coil windings (A1a, A1b) at z>0 as well as at least one of the partial coil windings (B1a, B1b) at z<0 are supported by a common coil body (K1), wherein the coil body (K1) has at least one opening (O1) at z=0, which permits radial access to the working volume (V), wherein the coil body (K1) supports the axial magnetic forces between the partial coil windings and wherein the coil body is force-fit mechanically connected to a first side plate (F1) at a front side. This realizes a stable and compact magnet arrangement with radial access.