| 摘要 |
An automated shim power supply system and associated methods for calibrating the magnetic field in magnetic resonance imaging devices by precisely adjusting the currents in shim coils. An automated shim power supply system sets, monitors, and corrects programmable power supply outputs to ensure stable output currents to shim coils with milliampere precision. Accompanying methods include iteratively measuring primary field flux and setting shim coil currents to correct inhomogeneities to within OEM specifications. |
