MRI system for investigating patient, has basic field generating device for generating basic magnetic field, where basic field generating device and gradient field generating device are arranged in evacuated low-pressure housing

摘要

The system has a basic field generating device (9) for generating basic magnetic field, and a gradient field generating device (8) for generating gradient field. The basic field generating device and the gradient field generating device are arranged in an evacuated low-pressure housing (2). A transmitter antenna (6) is arranged at an outside part of the low-pressure housing. Field screen elements (13) are provided between the basic field generating device and the gradient field generating device. The basic field generating device has smaller radius superconductive helium cooled solenoid coils.