| 摘要 |
<p>A magnetic field generating assembly for use in NMR apparatus comprises a primary magnetic field generator (5) for generating a primary magnetic field which is substantially homogeneous in the working region (16). The primary magnetic field generator is constructed such that an object to be examined can be introduced from outside the assembly into the working region (16) in a direction transverse to the direction of magnetic flux through the working region. Gradient magnetic field coils (14, 15) are provided for imposing one or more magnetic field gradients through the working region. The gradient magnetic field coils are movable relative to the primary magnetic field generator (5) for positioning locally to the position of an object to be examined in the working region.</p> |
