Superconducting magnet system with drift compensation

摘要

The system describes a means and a method for stabilizing the magnetic field generated in the measuring volume of a high-resolution magnetic resonance spectrometer having an actively shielded magnet coil ( 4 ) which is located in a cryostat ( 2 ) and which is superconductingly short-circuited. The system comprises a compensation coil ( 12 ) which is decoupled from the magnet coil ( 4 ), and is disposed on the shielding coil ( 4 b) of the magnet coil ( 4 ).