| 摘要 |
PURPOSE:To obtain a superconductive magnet, in which heat removing capability is high at a high heat load place and high temperature margin is provided at a high magnetic field side, by constituting cooling flow paths with different flow path lengths, changing the flow rates of refrigerants based on the flow paths. CONSTITUTION:A superconductive magnet 1 is constituted by a winding part 2 and a coil container 3. A forced cooling type superconductor 4 is wound by specified number of turns and contained in the coil container 3. Super-critical- pressure helium 5, which is a refrigerant, is made to flow in the superconductor 4. The flow path 6 of the refrigerant is divided into a high magnetic field side 2a and a low magnetic field side 2b in the winding part 2. In the high magnetic field side 2a, the length of the flow path is short. In the low magnetic field side 2b, the length of the flow path is long. In this way, the superconductive magnet, in which heat removing capability is large at a high heat load place and a high temperature margin is provided at the high magnetic field side, can be provided. |
