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A Multi-Stage Continuous-Duty Adiabatic Demagnetization RefrigeratorThe design for a multi-stage adiabatic demagnetization refrigerator (ADR) that can provide continuous cooling at very low temperatures is presented. The ADR is being developed for use in x-ray, IR and sub-millimeter space astronomy missions which will employ large format detector arrays operating at 50 mK and lower and which may dissipate up to 10 microwatts. It is also being designed to reject heat slowly to a relatively warm heat sink (in the 6-10 K range), so that future missions may use mechanical cryocoolers instead of liquid helium for pre-cooling. The continuous nature of the device gives it a much higher cooling power per unit mass, allowing it to be much smaller and lighter than existing ADRs with comparable performance. Design details are discussed along with prototype test results.
Document ID
19990063857
Acquisition Source
Goddard Space Flight Center
Document Type
Reprint (Version printed in journal)
Authors
Shirron, P. J.
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Blumenstock, K. A.
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Canavan, E. R.
(NASA Goddard Space Flight Center Greenbelt, MD United States)
DiPirro, M. J.
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Tuttle, J. G.
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Voellmer, G. M.
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Yeager, C. J.
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Date Acquired
August 19, 2013
Publication Date
January 1, 1999
Subject Category
Engineering (General)
Meeting Information
Meeting: 1999 Cryogenic Engineering
Location: Montreal
Country: Canada
Start Date: July 13, 1999
End Date: July 16, 1999
Distribution Limits
Public
Copyright
Other

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