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Abstract #3781

Behaviour of Gradient Coils Designed with Varying Degrees of Minimised Maximum Current Density

Michael Stephen Poole1, Peter While2, Hector Sanchez Lopez1, Larry Forbes2, Stuart Crozier1

1ITEE, University of Queensland, Brisbane, QLD, Australia; 2Mathematics, University of Tasmania, Hobart, Tasmania, Australia

A new method to design gradient and shim coils was recently presented that spreads out close wires. This has the effect of being able to increase the coils efficiency when limited by minimum wire size. Also, it can be used to reduce the peak temperature in a coil. Here we investigate the behaviour of such coils on the interval between standard minimum power and the new minimax current density coils. Performance properties and heating experiments and simulations were performed and the results analysed.