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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