| 摘要 |
PURPOSE:To offer users of a superconductive equipment a required uniform magnetic field by adjusting the magnetic field increasing or reducing the thickness of layers providing a position wherein lamination is possible in part of an iron shield. CONSTITUTION:A recession 8 is provided in an iron shield 6. An iron thin belt 9 is wound in the recession 8 and the magnetic field at the center 7 of a coil is adjusted. This enables the magnetic flux to be attracted outside as shown by an arrow 12. Consequently, in the process of winding the thin belt 9, the magnetic field adjacent to the center 7 of the coil is measured and the winding can be stopped when the magnetic field becomes uniform. This method offers users of a superconductive equipment a required uniform magnetic field. |
