Speaker
Description
A conduction cooling test facility to perform the characterization of superconducting model coils has been designed based on the use of a Gifford-McMahon cryocooler with a maximum of 1.8 Watt cooling capacity at 4.2 K. This facility will allow to test prototype coils as well as determine thermal properties of their components at a wide range of controllable temperatures. Such functionality is especially valuable when aiming to design and manufacture magnets at non-standard working conditions, for instance profiting from the temperature margins of the superconducting materials rather than their high critical fields, in which case, allowing to work at higher temperatures than those provided by cryogen bath based facilities is a necessity. A major challenge is presented when aiming to design and construct a test facility for cooling down and keeping temperature values stable and homogeneous while keeping the heat load below the cooling capacity of the cryocooler at the working temperature. The detailed design of the vacuum vessel, shields, current leads and cold mass supports are here presented together with preliminary heat load calculations.
| Submitters Country | Spain |
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