Superconducting magnet system with drift compensation coil mechanically and thermally connected to shielding coil

摘要

The system describes a means and method for stabilising 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 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 4b of the magnet coil 4. The rigid connection between magnet coil 4 and drift compensation coil 12 prevents relative mutual oscillations between them and consequent disturbances. This is advantageous compared to mounting to the nitrogen tank 11.