Patent ID: 9541619
Date: 2017-01-10
CPC Classifications: G01R

Claim:
1. A magnetic resonance tomography (MRT) system comprising: a controllable switching matrix; a controller that generates a control signal as a function of information relating to a field inhomogeneity of a magnetic field of the MRT system; and a plurality of controllable shim current sources coupled to the controller, wherein each controllable shim current source of the plurality of controllable shim current sources generates a coil current as a function of the control signal, wherein the plurality of shim current sources is coupled to a plurality of shim coil connections via the controllable switching matrix, wherein at least two shim current sources of the plurality of shim current sources are combined and supplied at a same time to one shim coil connection of the plurality of shim coil connections, wherein a number of shim coil connections in the plurality of shim coil connections is greater than a number of shim current sources in the plurality of shim current sources, and wherein at least one shim coil is connectable to each shim coil connection of the plurality of shim coil connections in order to generate a magnetic balancing field.