Magnetic Resonance Imaging (MRI) scanners use pulsed field gradients to form an image. A resistive gradient coil placed within a main magnet produces the field gradients.

Despite active shielding, the gradient coil still produces a stray field, which penetrates the cryostat of the magnet. Much of the cryostat is electrically conductive, so these pulsed (stray) fields induce additional time-varying magnetic fields within the imaging volume, which may lead to imaging artifacts.

There is a clear need for fast analysis tools for the problem of predicting the field variations that arise from gradient-coil induced eddy currents in the cryostat of an MRI scanner with axisymmetric geometry and to develop a high-fidelity benchmarking tool, which can be used for the validation stage in the manufacturing of MRI scanners.















ESR research project #6
PhD candidate: Guillem Barroso
Recruitment institution: Swansea University (UK)


ESR research project #7
PhD candidate: Marcos Seoane
Recruitment institution: Siemens (UK)