Abstract #4208

Measuring Eddy Currents Induced by Switching Gradient/Shim Currents

Paul Chang^1,2, Sahar Nassirpour^1,2, and Anke Henning^1,3

¹Max Planck Institute for Biological Cybernetics, Tuebingen, Germany, ²IMPRS for Cognitive and Systems Neuroscience, Eberhard-Karls University of Tuebingen, Tuebingen, Germany, ³Department of Physics, Ernst-Moritz-Arndt University Greifswald, Tuebingen, Germany

In this work, we measured eddy currents for a very high order B₀ shim system. The eddy currents were measured using two methods: a low-resolution B₀ mapping sequence and a NMR field camera. The high temporal resolution of the field camera allowed the eddy currents to be corrected using a digital pre-emphasis setup.

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