A basic field magnet arrangement for a magnetic resonance tomography system can include a plurality of basic field magnet segments spatially separated from one another, each being configured to generate an intended magnetic field having a defined segment main field direction. At least two basic magnet segments of the plurality of the basic field magnet segments are arranged relative to one another such that the respective segment main field directions of their intended magnetic fields extend at a deflection angle to one another such that the intended magnetic fields of the at least two basic field magnet segments produce an intended basic magnetic field. The intended basic magnetic field including a basic magnet main field direction can have a ring-shaped profile.