antenna shown here as a body coil 13 the radio frequency excitation pulses are generated by a pulse generation unit 15 that is controlled by a pulse sequence control unit 17 after an amplification by a radio frequency power amplifier 19 they are relayed to the radio frequency antenna the radio frequency system shown here is merely schematically indicated typically more than one pulse generation unit 15 more than one radio frequency power amplifier 19 and multiple radio frequency antennas are used in a magnetic resonance apparatus 1 furthermore the magnetic resonance apparatus 1 has gradient coils 21 with which gradient fields for selective slice excitation and for spatial coding of the measurement signal are radiated in a measurement the gradient coils 21 are controlled by a gradient coil control unit 23 that like the pulse generation unit 15 is connected with the pulse sequence control unit 17 the signals emitted by the excited nuclear spins are received by the body coil 13 and or by local coils 25 amplified by associated radio frequency pre amplifiers 27 and processed further and digitized by a receiver 29 an image processing unit 31 generates an image from the measurement data which image is presented to a user.