A Strong Magnetic Field Generation by Superconducting Bulk Magnets With the Same Pole Arrangement

We study on the construction of strong magnetic field by superconducting bulk magnets with RE123 bulk materials and the investigation of these industrial applications such as a magnetic separation. In this paper, we try to generate a strong magnetic field in the direction parallel to the bulk magnet. Two Gd123 bulk materials of 65 mm diameter are magnetized in the same pole (N-N) using a face-to-face superconducting bulk magnet system. The radial component of magnetic field, Bx, is measured in an open space between the magnetic poles by varying the gap (g=20-50 mm). The strong magnetic field area of g=20 mm is 15.8 times as large as that of g=50 mm and the maximum field reaches 1.53 T.