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Abstract #4345

Simple, Accurate and Efficient Multilayer Integral Method for Eddy Current Simulation in Thin Volumes of Arbitrary Geometry Produced by MRI Gradient Coils

Hector Sanchez Lopez1, Fabio Freschi2, Adnan Trakic1, Elliot Smith1, Jeremy Herbert1, Miguel Fuentes1, Stephen Wilson1, Limei Liu1, Maurizio Repetto2, Stuart Crozier1

1ITEE, The University of Queensland, Brisbane, QLD, Australia; 2Department of Energy, Politecnico di Torino, Torino, Italy

We present a new accurate and efficient eddy current simulation method capable of calculating induced currents in finite thickness conducting volumes of arbitrary geometry induced by arbitrary arrangements of gradient coils. The method has been experimentally validated using a z-gradient coil and its performance tested against COMSOL and the Fourier Network method. We present an example to demonstrate the capabilities of the method in terms of predicting the induced currents, power losses and pre-emphasis simulations using the excited eigenvalue corresponding to the surrounding structure. The method is accurate and fast enough to be performed in a laptop Intel corei7 CPU.