Quick-Replacement High-Temperature Superconducting Current Leads for Use in a Research Cryostat

[摘要] We report the use of a series of high-temperature superconducting leads in a cryostat that require no soldering to replace in the event of a failed lead. The temperature range spanned by the leads is 50 to 3 degrees Kelvin and they typically carry currents up to 4 amperes although they have a much higher capacity in this temperature range. The leads are integrated into the cryostat by clamping both ends to gold-plated copper pads. Support of the leads over the 25-centimeter length is provided by a simple G10 strong back. Details of the clamping interface, measurements of joint resistances, and other interesting observations will be discussed.

[发布日期] 2019-07-21

[学科分类] 工程和技术（综合）

[关键词] CRYOSTATS;ADIABATIC DEMAGNETIZATION COOLING;HIGH TEMPERATURE SUPERCONDUCTORS;ELECTRIC CONDUCTORS;REPLACING;FASTENERS;CLAMPS;GLASS FIBERS;LAMINATES;LOW TEMPERATURE TESTS;SOLDERING