| 摘要 |
An open-structure magnetic assembly is adapted to generate a homogeneous magnetic field in an accessible space region, including a first and second independent source of magnetic field (10, 12), each generating a contribution to the resulting magnetic field. The first source includes a conducting or superconducting plate (20), carrying an unidirectional current flow (I) from an input side (22) to an output side (24) and at least one external current recirculating path (30) between the output side (24) and the input side (22) of the plate. The second source includes a volume of magnetized material or an arrangement of coils, arranged for generating a magnetic field component oriented according to the magnetic field generated by the first source (10), and whose intensity exhibits a gradient in a direction perpendicular to the conducting plate (20) adapted to compensate, in a region of interest, an opposite gradient in the magnetic field intensity generated by the first source (10). |
