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Abstract #4421

Development of a Gradient and Shim Insert System for Marmoset Imaging at 9.4 T

Justin Peterson1, Ryan Chaddock1, Brian Dalrymple1, Frank Van Sas1, Kyle M Gilbert2, Martyn L Klassen3, Joseph S Gati3, William B Handler1, and Blaine A Chronik1

1The xMR Labs, Department of Physics & Astronomy, Western University, London, ON, Canada, 2Centre for Functional and Metabolic Mapping, Robarts Research Institute, London, ON, Canada, 3Medical Biophysics, Western University, London, ON, Canada

A replacement gradient coil for a 9.4 T preclinical system (31-cm inner diameter magnet) has been designed and is currently under construction. The new gradient and shim system will allow for improved imaging performance on the 9.4 T system, and has been developed specifically for marmoset imaging studies. Efficiencies of 1.5 mT/m/A for an ROI of size 8.5 cm at 5% homogeneity were achieved. A 10-channel shim set (not including first-order gradient shims) is included, with minimized inductive coupling to the gradient axes.

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