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Abstract #3824

A low-cost battery-powered tri-axial current-controlled gradient power supply for sustainable and portable MRI

Thomas O'Reilly1, Danny de Gans2, Lars Leenheer2, and Andrew Webb1
1C.J. Gorter Center for High Field MRI, Leiden University Medical Center, Leiden, Netherlands, 2DEMO, Delft University of Technology, Delft, Netherlands

Low field MRI has gained interest in recent years as a way of providing MRI to under-served and remote settings. MR hardware designed for such applications should be robust, portable and easy to maintain. In this work we present the design of a three-axis gradient amplifier capable of an output current of up to 15 amperes. The gradient amplifier is designed to run off two car batteries and consumes less than 100 watts during imaging. The components in the gradient amplifier are designed to be easily repairable and commonly available.

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