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Abstract #3771

Simulation Techniques for Susceptibility Optimisation of Field Probes

Wieland A. Worthoff 1 , Stefan Schwan 1 , Johannes Lindemeyer 1 , and N. Jon Shah 1,2

1 Institute of Neuroscience and Medicine, Forschungszentrum Jlich GmbH, Jlich, Germany, 2 Faculty of Medicine, Department of Neurology, RWTH Aachen University, JARA, Aachen, Germany

We present results from simulations of the magnetic fields generated by the susceptibility distribution of a field probe and its magnetic environment. In particular, the effect of an unmatched object residing at various distances in the vicinity of the probe is evaluated numerically and verified experimentally on a 9.4 T MRI scanner. Furthermore, we explore the impact of a susceptibility mismatch between the sample droplet and the liquid buffers on the field homogeneity within the droplet as well as the relationship to the length of buffers in order to optimize the field probe signal.

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