| 摘要 |
PURPOSE:To easily take out a vacuum container and to use a support member whose heat invasion from the outside to superconducting coils is small by a method wherein a yoke is divided, a structure to easily take out the vacuum container to the outside is formed, the support member is installed between the superconducting coils and a attracting force is supported. CONSTITUTION:Internal support members 9, 10 are installed between one pair of superconducting coils 1, 2; the internal support members are formed as the members 9, 10 which can be divided to the upper part and the lower part; in addition, airtight members 18 to 21 which can form an airtight container are provided for the individual superconducting coils 1, 2. Accordingly, the internal support members 9, 10 are inserted between the superconducting coils 1, 2; an attracting force between the superconducting coils 1, 2 is supported physically; it is sufficient to use positioning members (external support members) 16, 17, between the superconducting coils 1, 2 and yokes, whose heat conduction is small and whose cross-sectional area is small; upper and lower yokes 7, 8 can be separated; also the upper and lower superconducting coils 1, 2 can be separated together with the yokes to be separated. Thereby, it is possible to form the superconducting coils by which heat creeping in from the outside is small, and a vacuum container for magnetic utilization use can be taken out easily. |
