ABSTRACT
(Magnetic Resonance) During the image acquisition a significant amount of acoustic noise is produced by vibrations of the gradient coils which are embedded in solid material around the bore of the magnet. The electrical current passing through the gradient coils produces a large force which tends to move the coils and causes vibration, thus generating loud sounds such as tones, knocking or banging noises associated with the frequency and waveform of the applied gradient pulse.
