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Abstract #4856

Designing biplanar gradient coils with minimum power dissipation for NMR microscopy

Peter T. While 1 , Markus V. Meissner 1 , and Jan G. Korvink 1,2

1 Department of Microsystems Engineering (IMTEK), Laboratory for Simulation, University of Freiburg, Freiburg im Breisgau, Baden-Wrttemberg, Germany, 2 Freiburg Institute for Advanced Studies (FRIAS), University of Freiburg, Freiburg im Breisgau, Baden-Wrttemberg, Germany

High-resolution NMR microscopy demands strong gradient fields. Power dissipation in micro-gradient coils is a primary concern and must be controlled carefully to avoid over-heating the system or the sample and to maximize the duty cycle. In this work, a recently reported method for designing minimum power gradient coils that accounts for the subsequent means of fabrication is applied to the design of a 3-axis biplanar micro-gradient system. A survey of results is presented, comparing coils designed for x-, y- and z-gradients, using both the standard and the new approach, and contrasting the merits of building using tracks or wires.

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