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Abstract #3943

Temperature Characteristics of Gradient Coils with Minimax Current Density

Michael Stephen Poole1, Pierre Weiss2, Hector Sanchez Lopez1, Michael Ng3, Stuart Crozier1

1School of Information Technology and Electrical Engineering, University of Queensland, Brisbane, QLD, Australia; 2Institut de Mathematiques, Universite Paul Sabatier Toulouse 3, Toulouse, France; 3Department of Mathematics, Hong Kong Baptist University, Kowloon Tong, Hong Kong

Gradient and shim coils designed with minimum power or stored energy can possess regions of high current density. A new method has been developed to spread out these areas of high current density, which should lead to lower peak temperatures. Here we test the heating properties of such minimax current density coils with and show that indeed the peak temperature is reduced in a model coil.