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http://dx.doi.org/10.9714/psac.2013.15.4.059

Conductive link between cryocooler and magnet in cryogen-free LTS magnet system  

Choi, Yeon Suk (Korea Basic Science Institute)
Publication Information
Progress in Superconductivity and Cryogenics / v.15, no.4, 2013 , pp. 59-62 More about this Journal
Abstract
The conductive link is used as a cooling medium between a cryocooler and magnet in a cryogen-free superconducting magnet system. The low temperature superconducting (LTS) magnet has one solenoidal configuration with a metal former which has a 52 mm room temperature bore. The superconducting coil is installed in the cryostat maintaining high vacuum and cooled by a two-stage cryocooler. In order to maintain the operating temperature of magnet at the designed level, the cold head temperature of the cryocooler must be lower so that heat can be removed from the superconducting coil. Also, temperature difference is occurred between the magnet and cryocooler and its magnitude is dependent upon the contact resistance at the interfacial surface between metals in the conductive link. In the paper, the performance of the LTS magnet is investigated with respect to the conductive link between the magnet former and the cold head of the cryocooler. The effects of the contact pressure and interfacial materials on the temperature distribution along the conductive link are also presented.
Keywords
Conductive link; contact resistance; cryogen-free; superconducting magnet;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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