The invention relates to a nuclear spin or NMR imaging assembly, comprising apparatus (1) for generating a homogeneous magnetic field in a region to be imaged of a target examined, sets of gradient coils (3) for producing one or more magnetic field gradients perpendicular to each other in said homogeneous...http://www.google.com.au/patents/US4626784?utm_source=gb-gplus-sharePatent US4626784 - NMR imaging device
