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Published September 2015 | public
Journal Article

Thermal conductance measurements of bolted copper joints for SuperCDMS

Abstract

Joint thermal conductance testing has been undertaken for bolted copper to copper connections from 60 mK to 26 K. This testing was performed to validate an initial design basis for the SuperCDMS experiment, where a dilution refrigerator will be coupled to a cryostat via multiple bolted connections. Copper used during testing was either gold plated or passivated with citric acid to prevent surface oxidation. Results obtained are well fit by a power law regression of joint thermal conductance to temperature and match well with data collected during a literature review.

Additional Information

© 2015 Elsevier B.V. Received 14 January 2015; Received in revised form 13 April 2015; Accepted 21 April 2015; Available online 28 April 2015. Fermi National Accelerator Laboratory is operated by Fermi Research Alliance, LLC under Contract No. De-AC02-07CH11359 with the United States Department of Energy. Fermilab report number: FERMILAB-PUB-14-522-PPD.

Additional details

Created:
August 22, 2023
Modified:
October 23, 2023