The Primordial Inflation Polarization ExploreR continuous adiabatic demagnetization refrigerator

Pawlyk, Samuel, Ade, Peter ORCID: https://orcid.org/0000-0002-5127-0401, Benford, Dominic, Bennett, Charles, Chuss, David, Datta, Rahul, Dotson, Jessie, Essinger-Hileman, Thomas, Fixsen, Dale, Halpern, Mark, HIlton, Gene, Hinshaw, Gary, Irwin, Kent, Jhabvala, Christine, Kimball, Mark, Kogut, Al, Lowe, Luke, McMahon, Jeff, Miller, Timothy, Mirel, Paul, Moseley, Samuel Harvey, Rodriguez, Samelys, Sharp, Elmer, Shirron, Peter, Staguhn, Johannes G., Sullivan, Dan, Switzer, Eric, Taraschi, Peter, Tucker, Carole ORCID: https://orcid.org/0000-0002-1851-3918, Wollack, Edward and Walts, Alexander 2018. The Primordial Inflation Polarization ExploreR continuous adiabatic demagnetization refrigerator. Presented at: 231st Meeting of the American Astronomical Society, Washington D.C., USA, 08-12 January 2018.

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Abstract

The Primordial Inflation Polarization ExploreR (PIPER) uses a Continuous Adiabatic Demagnetization Refrigerator (CADR) to cool its detectors. The CADR consists of four independent stages with adjacent stages connected by gas gap (GG) or superconducting (SC) heat switches. The three warm stages cycle to transfer heat from the 100 mK detector package to the 1.5 K liquid helium bath. The coldest stage maintains a continuous temperature of 100 mK for the detector package with 10 uW cooling power. We describe the mechanical, electrical, and software design of the CADR and present recent results.

Item Type:	Conference or Workshop Item (Paper)
Date Type:	Published Online
Status:	Unpublished
Schools:	Physics and Astronomy
Last Modified:	02 May 2023 13:00
URI:	https://orca.cardiff.ac.uk/id/eprint/156845

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