| 摘要 |
PURPOSE:To attach and remove current leads reliably and easily while keeping at an extremely low temperature, by providing a guide member vertically at the top within a low temperature vessel, by fixing an internal lead fastening connector at the bottom in the guide member, and by providing attaching and removing leads having a movable connector which can be inserted and removed along the guide member. CONSTITUTION:In a low temperature vessel 1, a superconductive coil 3, coolant 2, and a permanent current switch 9 connected in parallel with the superconductive coil 3 are housed. Moreover, there are provided a cylindrical guide member 16 which is arrayed vertically at the top within the low temperature vessel 1, a fixed connector having the superconductive coil 3 and leads of the permanent current switch 9 connected, being fixed at the bottom in the guide member 16, and attaching and removing leads 100 which are conducted outside the low temperature vessel 1 and are connected with a movable connector which can be inserted or removed along the guide member 16 to attach to or remove from the fixed connector 19. In this way, connecting leads across the inside and outside of the low temperature vessel can be attained easily and reliably. |
