Design and optimisation of magnetic systems for novel magnetic resonance imaging (MRI) systems, including magnets, gradient coils and RF coils. Design methods include a combination of analytic and finite-element methods together with optimisation techniques and the development of enabling and linking software modules.
Design, build and testing of a unique permanent magnet whose magnetic field is parallel to its poles. This magnet is mounted so as to rotate about two orthogonal axes under precision computer control about a stationary subject. This enables us to exploit the magic angle effect to image collagen-rich tissues such as ligaments, tendons and cartilage which have an intrinsic anisotropy and give a much enhanced signal when oriented at 55° to the main field. Such tissues are difficult to image in conventional solenoidal MRI scanners which cannot be rotated. It is envisaged that this system will be of great diagnostic value in assessing disease and injury of joints such as the knee.