| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that a large amount of liquid helium is evaporated by increase in heating amount of a heater for switching ON/OFF of a persistent current switch when a superconducting material having a high critical temperature for superconductivity is applied in order to improve the reliability of the persistent current switch. SOLUTION: The persistent current switch includes: a winding part in which a superconducting wire is non-inductively wound; a heating heater provided around the winding part; a vessel provided around the winding part with a space provided between the winding parts; and an anti-convective material provided in the space between the vessel and the winding part. COPYRIGHT: (C)2010,JPO&INPIT |
