Yuri Lvovsky1, Zhenyu Zhang1, Timothy Hollis2, Ye Bai2
1GE Healthcare, Florence, SC, United States; 2GE Healthcare, BeiJing, China
Method of passive shimming of MRI magnet is presented. To reduce forces and torque during shim tray insertion / removal, after the initial virgin map is taken at full field the magnet is partially ramped down where coarse iterations are performed using maps acquired at lower field. Test results proved successful shimming of the magnet.