| 摘要 |
A magnetic shield apparatus includes a magnetic shield room, a tubular member, and a flange portion. The magnetic shield room has an opening to shield external magnetism. The tubular member is made of a magnetic shield material and attached to the opening to project from the magnetic shield room by a first predetermined length. The flange portion is made of a magnetic shield material and formed around a distal end portion of the tubular member to be spaced apart from it by a second predetermined length. <IMAGE> |
