| 摘要 |
PROBLEM TO BE SOLVED: To provide a superconducting electromagnet capable of securing the strength and the necessary heat conduction, using a simple constitution. SOLUTION: The superconducting electromagnet comprises a low-temperature container 1, which contains a cylindrical superconducting coil 9 and is filled with liquid helium 5, a cylindrical radiation heat shield 6 disposed covering the low-temperature container 1 for reducing the radiation heat of the low-temperature container 1, and a vacuum heat-insulating container 2 which houses the radiation heat shield 6 and insulates heat inside under a vacuum, where the radiation heat shield 6 comprises an outer peripheral cylinder portion 61, an inner peripheral cylinder portion 62, and a flange portion 63 blocking the outer peripheral cylinder portion 61 and inner peripheral cylinder portion 62 from each other; and while the outer peripheral cylinder portion 61 and inner peripheral cylinder portion 62 are formed by using aluminum A1100 or A1050, the flange portion 63 is formed using aluminum A5083. COPYRIGHT: (C)2008,JPO&INPIT |
